XC9502B095AR

Torex Semiconductor

2ch. Step-up / down DC/DC Controller ICs

Manufacturer: Torex Semiconductor

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Mar, 14 2003 Ver. 2 ! Applications " 2ch DC/DC Controller (Step-up + Step-down) # PDAs " Input Voltage Range 0.9V ~ 10.0V # Palm Top Computers " Output Voltage Externally Set-Up # Portable Audio Systems " Switching Frequency 180kHz (±15%) # Various Multi-Function Power Supplies " Maximum Duty Cycle Step-up 80% (Typ.) Step-down 100% " PWM, PWM/PFM Switching Control ! Features " High Efficiency Step-up 85% (Typ.) 2ch DC/DC Controller Step-down 92% (Typ.) Output 1 : Step-up DC/DC Controller " Small MSOP-10 package Output 2 : Step-down DC/DC Controller Power Supply Voltage Range : 2.0V ~ 10V Output Voltage Range Output 1 (Step-up) : 1.5V ~ 30.0V ! General Description Output 2 (Step-down) : 0.9V ~ 6.0V Oscillation Frequency : 180kHz ±15% (300kHz, 500kHz custom) Output Current Output 1 Output 2 Stand-By Function : 3.0µA (MAX.) Package : MSOP-10 Soft-Start Time : 10 ms (internally set) ! Typical Performance Characteristics ! Typical Application Circuit XC9502B092A Input : 2 cell, VOUT1 : 3.3V, VOUT2 : 1.8V : more than 1000mA (VIN=3.3V, VOUT=1.8V) : more than 300mA (VIN=1.8V, VOUT=3.3V) Noise is easily reduced with PWM control since the frequency is fixed. The series gives freedom of control selection so that control suited to the application can be selected. Soft-start time is internally set to 10msec (Output 1) and offers protection against in-rush currents when the power is switched. This also prevents voltage overshoot. Can be set freely with 0.9V (±2.0%) of reference voltage supply and external components. Can be set freely with 0.9V (±2.0%) of reference voltage supply and external components. XC9502 Series 2ch. Step-up / down DC/DC Controller ICs The XC9502 series are PWM controlled, PWM/PFM automatic switching controlled, multi-functional, 2 channel step-up and down DC/DC controller ICs. With 0.9V of standard voltage supply internal, and using externally connected components, the output 1 voltage (step-up DC/DC controller) can be set freely within a range of 1.5V to 30V. Since the output 2 (step- down DC/DC controller) has a built-in 0.9V reference voltage (accuracy ±2%), 0.9V to 6.0V can be set using external components. With a 180kHz frequency, the size of the external components can be reduced. Switching frequencies of 300kHz & 500kHz are also available as custom-designed products. The control of the XC9502 series can be switched between PWM control and PWM/PFM automatic switching control using external signals. Control switches from PWM to PFM during light loads when automatic switching is selected and the series is highly efficient from light loads through to large output currents. Tr2:Nch MOSFET :XP161A1355P L1:22µH CDRH5D28 Tr2:Pch MOSFET XP162A12A6P CIN :47µFVIN =2.0V ~3.0V SD2 :MA2Q737 SD1 :MA2Q737 RFB11 :200kΩ CFB1 :62pF RFB12 :75kΩ VOUT1:3.3V

1 EXT1

2 VDD

3 FB1 FB2 8

4 PWM1 PWM2 7

5 EN1 EN2 6

:47µFX2 CL2 :47µFX2 VPWM1 VPWM2 VNE2VNE1 L2:22µH CDRH5D28 VOUT2:1.8V RFB21 :220kΩ RFB22 :220kΩ CFB2 :62pF 100 0.1 1 10 100 1000 Output Current 1,2 I OUT1,2 (mA) Efficiency 1,2 EFFI1,2 (%) VIN=2.7V VOUT2:1.8V PWM Control PWM/PFM Switching Control L1=15µH,L2=22µH(CDRH5D28),CL1,CL2=92µF(Tantalum) SD1,SD2:CMS02, Tr1:XP161A1355P,Tr2:XP162A12A6P XC9502B093A (300kHz,VOUT1:3.3V,VOUT2:1.8V) VOUT1:3.3V

! Pin Configuration ! Pin Assignment ! Ordering Information XC9502123456 FB Voltage 0.9V Embossed Tape Embossed Tape DESCRIPTIONDESIGNATOR SYMBOL L Package R Standard Feed Reverse Feed MSOP-105 Switching Frequency Standard (10 Pin) PIN NAME FUNCTIONS 3 300kHz (custom) 500kHz (custom) 5 EN1 Channel 1 : Enable Pin <Connected to Ground when Output 1 is in stand-by mode. Connected to VDD when Output 1 is active. EXT1 is low when in stand-by mode.> 6 EN2 Channel 2 : Enable Pin <Connected to Ground when Output 2 is in stand-by mode. Connected to VDD when Output 2 is active. EXT2/ is high when in stand-by mode.> XC9502 Series B A PIN NUMBER 3 Channel 1 : Output Voltage Monitor Feedback Pin <Threshold value : 0.9V. Output voltage can be set freely by connecting split resistors between VOUT1 and Ground.> 4 PWM1 Channel 1 : PWM/PFM Switching Pin <Control Output 1. PWM control when connected to VDD, PWM / PFM auto switching when connected to Ground. > 2ch. Step-up / down DC/DC Controller ICs 180kHz EXT 1 Channel 1: External Transistor Drive Pin <Connected to Nch Power MOSFET Gate> VDD Supply Voltage FB1 7 PWM2 Channel 2 : PWM/PFM Switching Pin <Control Output 2. PWM control when connected to VDD, PWM / PFM auto switching when connected to Ground.> 8 FB2 Channel 2 : Output Voltage Monitor Feedback Pin <Threshold value : 0.9V. Output voltage can be set freely by connecting split resistors between VOUT2 and Ground.>

9 GND Ground

10 EXT2/ Channel 2 : External Transistor Drive Pin <Connected to Pch Power MOSFET Gate>

(TOP VIEW)

! Absolute Maximum Ratings Ta=25OC * Voltage goes to Ground. ! Block Diagram Storage Temperature mW IEXT ± 100 mA Pd 150 EXT1, 2 Pin Current Power Dissipation FB1, 2 Pin Voltage - 0.3 ~ 12 V V VEN - 0.3 ~ 12 V - 0.3 ~ 12 V VEXT - 0.3 ~ VDD + 0.3 EN1, 2 Pin Voltage PWM1,2 Pin Voltage EXT1, 2 Pin Voltage VPWM VDD - 0.3 ~ 12 V SYMBOL RATINGS UNITSPARAMETER XC9502 Series 2ch. Step-up / down DC/DC Controller ICs VDD Pin Voltage VFB Tstg OC - 55 ~ + 125 OC Topr - 40 ~ + 85Operating Ambient Temperature PWM1 FB1 VDD EXT1 Vref1 = 0.9V with Soft Start1, EN1 PWM/PFM Controller 1 Vref2 = 0.9V with Soft Start 1, EN2 PWM/PFM Controller 2 FB2 GND EXT2 OSC Generator Ramp Wave Generator 1 Ramp Wave Generator 2 Error Amp2 Error Amp1 PWM Comparator2 PW MComparator1 EN1 PWM2 EN2 EN1 to internal circuit EN2 to internal circuit

! Electrical Characteristics XC9502B092 Common Characteristics (FOSC=180kHz) Ta=25 OC VOUT1 VOUT2 VOUT1 VOUT2 Unless otherwise stated, VDD=3.0V, PWM1,2=3.0V, EN1, 2 =3.0V Output 1 Characteristics Step-up Controller Ta=25 OC Using Tr: 2SD1628, Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V Output 2 Characteristics Step-down Controller Ta=25OC Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=5.0V Notes 1) IOUT2=250mA MAXDTY2 100 - -Same as IDD1 % MAX. 0.900 0.918 Efficiency1 (note 4) EFFI1 IOUT=130mA -N-ch MOSFET:XP161A1355P Oscillation Start-up Voltage1 VST2-1 MIN. 0.882 IFBH FB1, 2=3.0V FB1, 2=1.0VFB1,2 "Low" Current - 60 130 FB1=1.0V, FB2=0V Same as IDD2 - 0.900 Max. Input Voltage VIN 10.0 - V 1 Supply Current 1-4 - PARAMETER SYMBOL CONDITIONS µAFB1, 2=1.0V 3.0 µAStand-by Current ISTB Same as IDD1, EN1=EN2=0V UNITSMIN.PARAMETER SYMBOL CONDITIONS Efficiency2 (note 4) EFFI2 P-ch MOSFET : XP162A12A6P 92-- % 8 V 8 Although the IC's step-up operations start from a VDD of 0.8V, the output voltage and switching frequency are stabilized at VDD ≥ 2.0V. Therefore, a VDD of more than 2.0V is recommended when VDD is supplied from VIN or other power sources. V TYP. FB1 Voltage VFB1 Soft-Start Time1 EXT1 "Low" ON Resistance VDD=3.0V, VIN=1.5V, IOUT1=10mA 0.65 FB1=0V - 2.0 -PWM1,2 "Low" Current IDD1-4 IPWML FB1, 2=3.0V, PWM=0V FB1, 2=0V Supply Current 2 IDD2 Soft-Start Time2 PARAMETER SYMBOL MIN. 0.9 Supply Voltage (note 1) VDD VFBL FB1,2 "High" Current EN1=3.0V, EN2=0V, FB1=0V PWM1,2 "High" Current IPWMH VPWMH2 No Load EN2=0, EXT2=VDD-0.4V EXT2 "Low" ON Resistance REXTBL2 FB2=0V, EXT2=0.4V EXT2 "High" ON Resistance REXTBH2 Minimum Operation Voltage 5.0 Ω 6 10.0 30 38 - 6 PWM2 "Low" Voltage VPWML2 No Load -PWM2 "High" Voltage Ω - - 0.20 TSS2 VOUT2 × 0.95V, EN2=0V→0.65V VINmin - PFM Duty Ratio2 PFMDTY2 No Load, VPWM2=0V Minimum Duty Ratio2 MINDTY2 MAX. TYP. 120 85 - 60 130 2.0- VIN - VIN 10.0 CONDITIONS 2ch. Step-up / down DC/DC Controller ICs TEST CIRCUITMAX. UNITS TYP. XC9502 Series Output Voltage Range (note 3) VOUTSET 0.9 2.0 Supply Current 1-1 IDD1-1 Supply Current 1 IDD1 VIN ≥ 0.9V, IOUT1, 2=1mA VDD=VOUT1 110 µASupply Current 1-2 IDD1-2 EN2=3.0V, EN1=0V, FB2=0V - 50 160 µASupply Current 1-3 IDD1-3 FB1=0V, FB2=1.0V - 70 - 1.0 180 207Switching Frequency FOSC Same as IDD1 153 -- VEN1,2 "High" Voltage VENH FB1,2=0V 0.65 - 0.20 VEN1,2 "Low" Voltage VENL FB1,2=0V - - 0.50 µAEN1,2 "High" Current IENH EN1,2=3.0V - - -0.50 µAEN1,2 "Low" Current IENL EN1,2=0V, FB1,2=3.0V - FB1, 2=3.0V, PWM=3.0V - 0.918 - 0.50 -0.50 -0.50 - 0.50 V VOperation Start-up Voltage1 (note 2) VST1-1 - IOUT1=1.0mA, RFB11=200kΩ, RFB12=75kΩ VDD ≠ VOUT1: IOUT1=1mA 0.9 80 85 - 2.0 0.8- 28 47 20.010.0 30 38 FB2 Voltage VFB2 VIN=3.0V, IOUT2=10mA 0.882 EXT1 "High" ON Resistance REXTBL1 22 30 -PWM1 "High" Voltage VPWMH1 No Load, VPWM1=0V 22 Maximum Duty Ratio1 MAXDTY1 Same as IDD1 PFM Duty Ratio1 PFMDTY1 Minimum Duty Ratio1 MINDTY1 TSS1 VOUT1 × 0.95V, EN1=0V→0.65V 5.0 REXTBH1 FB1=0, EXT1=VDD-0.4V No Load - - EN1=FB2=0V, EXT1=0.4V No Load 0.65 V VDD ≥ 2.0V, IOUT1, 2=1mA VDD≠VOUT1 V µA70 160 0.9 V V- 10.0 V V µA µA kHz µA UNITS V µA µA µA V Ω mS 5 EFFI={ [ (Output voltage) x (Output current) ] / [ (Input voltage) x (Input Current) ] } x 100 -Same as IDD2

0.20 VPWM1 "Low" Voltage VPWML1

20.0 mS TEST CIRCUIT V TEST CIRCUIT Ω Although the IC's switching operations start from a VIN of 0.9V, the IC's power supply pin (VDD) and output voltage monitor pin (FB1) should be connected to VOUT1. With operations from VIN=0.9V, the 2nd channel's (output 2) EN2 pin should be set to chip disable. Once ouput voltage VOUT1 is more than 2.0V, the EN2 pin should be set to chip enable. Please be careful not to exceed the breakdown voltage level of the peripheral parts. V 1

! Electrical Characteristics XC9502B093 Common Characteristics (FOSC=300kHz) Ta=25 OC VOUT1 VOUT2 VOUT1 VOUT2 Unless otherwise stated, VDD=3.0V, PWM1,2=3.0V, EN1, 2 =3.0V Output 1 Characteristics Step-up Controlle r Ta=25OC Using Tr: 2SD1628, Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V Output 2 Characteristics Step-down Controller Ta=25OC Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=5.0V Notes 1) Although the IC's step-up operations start from a VDD of 0.8V, the output voltage and switching frequency are stabilized at VDD ≥ 2.0V. Therefore, a VDD of more than 2.0V is recommended when VDD is supplied from VIN or other power sources. Although the IC's switching operations start from a VIN of 0.9V, the IC's power supply pin (VDD) and output voltage monitor pin (FB1) should be connected to VOUT1. With operations from VIN=0.9V, the 2nd channel's (output 2) EN2 pin should be set to chip disable. Once ouput voltage VOUT1 is more than 2.0V, the EN2 pin should be set to chip enable. Please be careful not to exceed the breakdown voltage level of the peripheral parts. EFFI={ [ (Output voltage) x (Output current) ] / [ (Input voltage) x (Input Current) ] } x 100 - 0.20 V 8PWM2 "Low" Voltage VPWML2 No Load - -- V 8PWM2 "High" Voltage VPWMH2 No Load 0.7 22 30 Ω 6EXT2 "Low" ON Resistance REXTBL2 FB2=0V, EXT2=0.4 V - 28 47 Ω 6EXT2 "High" ON Resistance REXTBH2 EN2=0V, EXT2=VDD-0.4 V - 92 - % 8Efficiency2 EFFI2 IOUT2=250mA -P-ch MOSFET : XP162A12A6P 30 38 % 8PFM Duty Ratio2 PFMDTY2 No Load, VPWM2=0V 22 -0 % 3Minimum Duty Ratio2 MINDTY2 Same as IDD2 - -- % 3Maximum Duty Ratio2 MAXDTY2 Same as IDD1 100 - 2.0 V 1Minimum Operation Voltage VINmin - 0.900 0.900 V 7FB2 Voltage VFB2 VIN=3.0V, IOUT2=10mA 0.900 TYP. MAX. UNITS TEST CIRCUITPARAMETER SYMBOL CONDITIONS MIN. - 0.20 V 5PWM1 "Low" Voltage VPWML1 No Load - -- V 5PWM1 "High" Voltage VPWMH1 No Load 0.65 22 30 Ω 6EXT1 "Low" ON Resistance REXTBL1 EN1=FB2=0V, EXT1=0.4 V - 28 47 Ω 6EXT1 "High" ON Resistance REXTBH1 FB1=0, EXT1=VDD-0.4 V - 85 - % 5Efficiency1 (note 4) EFFI1 IOUT=130mA -N-ch MOSFET:XP161A1355P 30 38 % 5PFM Duty Ratio1 PFMDTY1 No Load, VPWM1=0V 22 -0 % 3Minimum Duty Ratio1 MINDTY1 Same as IDD2 - Maximum Duty Ratio1 MAXDTY1 Same as IDD1 75 80 85 % 3

2.0 V 1

Oscillation Start-up Voltage1 VST2-1 FB1=0V - - 0.8 V 0.9 V 2IOUT1=1.0mA, RFB11=200kΩ, RFB12=75kΩOperation Start-up Voltage1 (note 2) VST1-1 -- VDD ≠ VOUT1: IOUT1=1mA -- TYP. MAX. UNITS TEST CIRCUITPARAMETER SYMBOL CONDITIONS MIN. - -0.50 µA 3FB1,2 "Low" Current VFBL FB1, 2=1.0V - - 0.50 µA 3FB1,2 "High" Current IFBH FB1, 2=3.0V - - -0.50 µA 3PWM1,2 "Low" Current IPWML FB1, 2=3.0V, PWM=0V - - 0.50 µA 3PWM1,2 "High" Current IPWMH FB1, 2=3.0V, PWM=3.0V - - -0.50 µA 3EN1,2 "Low" Current IENL EN1,2=0V, FB1,2=3.0V - - 0.50 µA 3EN1,2 "High" Current IENH FB1,2=3.0V - - 0.20 V 3EN1,2 "Low" Voltage VENL FB1,2=0V - -- V 3EN1,2 "High" Voltage VENH FB1,2=0V 0.65 300 345 kHz 3Switching Frequency FOSC Same as IDD1 255 1.0 3.0 µA 3Stand-by Current ISTB Same as IDD1, EN1=EN2=0V - 70 150 µA 3Supply Current 2 IDD2 FB1, 2=1.0V - 70 150 µA 3Supply Current 1-4 IDD1-4 FB1=1.0V, FB2=0V - 100 190 µA 3Supply Current 1-3 IDD1-3 FB1=0V, FB2=1.0V - 60 120 µA 3Supply Current 1-2 IDD1-2 EN2=3.0V, EN1=0V, FB2=0V - 80 150 µA 3Supply Current 1-1 IDD1-1 EN1=3.0V, EN2=0V, FB1=0V - 100 190 µA 3Supply Current 1 IDD1 FB1, 2=0V - - 10.0 V 2- VIN V -- V 1- VIN VOutput Voltage Range (note 3) VOUTSET VDD ≥ 2.0V, IOUT1, 2=1mA VDD≠VOUT1 0.9 0.9 VIN ≥ 0.9V, IOUT1, 2=1mA VDD=VOUT1 2.0 0.9 -- V 1Max. Input Voltage VIN 10.0 TEST CIRCUIT Supply Voltage (note 1) VDD 2.0 - 10.0 V 1 XC9502 Series 2ch. Step-up / down DC/DC Controller ICs PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS

! Electrical Characteristics XC9502B095 Common Characteristics (FOSC=500kHz) Ta=25 OC VOUT1 VOUT2 VOUT1 VOUT2 Unless otherwise stated, VDD=3.0V, PWM1,2=3.0V, EN1, 2 =3.0V Output 1 Characteristics Step-up Controlle r Ta=25OC Using Tr: 2SD1628, Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V Output 2 Characteristics Step-down Controller Ta=25OC Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=5.0V Notes 1) Although the IC's step-up operations start from a VDD of 0.8V, the output voltage and switching frequency are stabilized at VDD ≥ 2.0V. Therefore, a VDD of more than 2.0V is recommended when VDD is supplied from VIN or other power sources. Although the IC's switching operations start from a VIN of 0.9V, the IC's power supply pin (VDD) and output voltage monitor pin (FB1) should be connected to VOUT1. With operations from VIN=0.9V, the 2nd channel's (output 2) EN2 pin should be set to chip disable. Once ouput voltage VOUT1 is more than 2.0V, the EN2 pin should be set to chip enable. Please be careful not to exceed the breakdown voltage level of the peripheral parts. EFFI={ [ (Output voltage) x (Output current) ] / [ (Input voltage) x (Input Current) ] } x 100 - 0.20 V 8PWM2 "Low" Voltage VPWML2 No Load - -- V 8PWM2 "High" Voltage VPWMH2 No Load 0.65 22 30 Ω 6EXT2 "Low" ON Resistance REXTBL2 FB2=0V, EXT2=0.4 V - 28 47 Ω 6EXT2 "High" ON Resistance REXTBH2 EN2=0, EXT2=VDD-0.4 V - 91 - % 8Efficiency2 EFFI2 IOUT2=250mA - P-ch MOSFET : XP162A12A6P 30 38 % 8PFM Duty Ratio2 PFMDTY2 No Load, VPWM2=0V 22 -0 % 3Minimum Duty Ratio2 MINDTY2 Same as IDD2 - -- % 3Maximum Duty Ratio2 MAXDTY2 Same as IDD1 100 - 2.0 V 1Minimum Operation Voltage VINmin - 0.900 0.918 V 7FB2 Voltage VFB2 VIN=3.0V, IOUT2=10mA 0.882 TYP. MAX. UNITS TEST CIRCUITPARAMETER SYMBOL CONDITIONS MIN. - 0.20 V 5PWM1 "Low" Voltage VPWML1 No Load - -- V 5PWM1 "High" Voltage VPWMH1 No Load 0.65 22 30 Ω 6EXT1 "Low" ON Resistance REXTBL1 EN1=FB2=0V, EXT1=0.4 V - 28 47 Ω 6EXT1 "High" ON Resistance REXTBH1 FB1=0, EXT1=VDD-0.4 V - 83 - % 5Efficiency1 (note 4) EFFI1 IOUT=130mA - N-ch MOSFET:XP161A1355P 30 38 % 5PFM Duty Ratio1 PFMDTY1 No Load, VPWM1=0V 22 -0 % 3Minimum Duty Ratio1 MINDTY1 Same as IDD2 - Maximum Duty Ratio1 MAXDTY1 Same as IDD1 75 80 85 % 3 Oscillation Start-up Voltage1 VST2-1 FB1=0V - - 0.8 V 0.9 V 2IOUT1=1.0mA, RFB11=200kΩ, RFB12=75kΩOperation Start-up Voltage1 (note 2) VST1-1 -- VDD ≠ VOUT1: IOUT1=1mA -- TYP. MAX. UNITS TEST CIRCUITPARAMETER SYMBOL CONDITIONS MIN. - -0.50 µA 3FB1,2 "Low" Current VFBL FB1, 2=1.0V - - 0.50 µA 3FB1,2 "High" Current IFBH FB1, 2=3.0V - - -0.50 µA 3PWM1,2 "Low" Current IPWML FB1, 2=3.0V, PWM=0V - - 0.50 µA 3PWM1,2 "High" Current IPWMH FB1, 2=3.0V, PWM=3.0V - - -0.50 µA 3EN1,2 "Low" Current IENL EN1,2=0V, FB1,2=3.0V - - 0.50 µA 3EN1,2 "High" Current IENH EN1,2=3.0V - - 0.20 V 3EN1,2 "Low" Voltage VENL FB1,2=0V - -- V 3EN1,2 "High" Voltage VENH FB1,2=0V 0.65 500 575 kHz 3Switching Frequency FOSC Same as IDD1 425 1.0 3.0 µA 3Stand-by Current ISTB Same as IDD1, EN1=EN2=0V - 90 190 µA 3Supply Current 2 IDD2 FB1, 2=1.0V - 90 190 µA 3Supply Current 1-4 IDD1-4 FB1=1.0V, FB2=0V - 130 240 µA 3Supply Current 1-3 IDD1-3 FB1=0V, FB2=1.0V - 80 150 µA 3Supply Current 1-2 IDD1-2 EN2=3.0V, EN1=0V, FB2=0V - 110 220 µA 3Supply Current 1-1 IDD1-1 EN1=3.0V, EN2=0V, FB1=0V - 130 250 µA 3Supply Current 1 IDD1 FB1, 2=0V - - 10.0 V 2- VIN V -- V 1- VIN VOutput Voltage Range (note 3) VOUTSET VDD ≥ 2.0V, IOUT1, 2=1mA VDD≠VOUT1 0.9 0.9 VIN ≥ 0.9V, IOUT1, 2=1mA VDD=VOUT1 2.0 0.9 -- V 1Max. Input Voltage VIN 10.0 - 10.0 V 1Supply Voltage (note 1) VDD 2.0 XC9502 Series 2ch. Step-up / down DC/DC Controller ICs PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS TEST CIRCUIT

! Operational Description <Error Amp> <OSC Generator> <Ramp Wave Generator 1, 2> The Ramp Wave Generator generates a saw-tooth waveform based on outputs from the Phase Shift Generator. <PWM Comparator 1, 2> <PWM/PFM Controller 1, 2> <Vref with Soft Start 1, 2> <Chip Enable Function> XC9502 Series 2ch. Step-up / down DC/DC Controller ICs This circuit generates PFM pulses. Control can be switched between PWM control and PWM/PFM automatic switching control using external signals. The PWM/PFM automatic switching mode is selected when the voltage of the PWM1 (2) pin is less than 0.2V, and the control switches between PWM and PFM automatically depending on the load. As the PFM circuit generates pulses based on outputs from the PWM comparator, shifting between modes occurs smoothly. PWM control mode is selected when the voltage of the PWM1 (2) pin is more than 0.65V. Noise is easily reduced with PWM control since the switching frequency is fixed. Control suited to the application can easily be selected which is useful in audio applications, for example, where traditionally, efficiencies have been sacrificed during stand-by as a result of using PWM control (due to the noise problems associated with the PFM mode in stand-by). This circuit generates the Switching Frequency which in turn generates the reference clock. The PWM Comparator compares outputs from the Error Amp. and saw-tooth waveform. When the voltage from the Error Amp's output is low, the external switch will be set to ON. The reference voltage, Vref (FB pin voltage)=0.9V, is adjusted and fixed by laser trimming (for output voltage settings, please refer to the notes on page 8). To protect against inrush current, when the power is switched on, and also to protect against voltage overshoot, soft-start time is set internally to 10ms. It should be noted, however, that this circuit does not protect the load capacitor (CL) from inrush current. With the Vref voltage limited and depending upon the input to the error amps, the operation maintains a balance between the two inputs of the error amps and controls the EXT pin's ON time so that it doesn't increase more than is necessary. This function controls the operation and shutdown of the IC. When the voltage of the EN1 or EN2 pins is 0.2V or less, the mode will be chip disable, the channel's operations will stop and the EXT1 pin will be kept at a low level (the external N-type MOSFET will be OFF) and the EXT2 pin will be kept at a high level (the external P-type MOSFET will be OFF). When both EN1 and EN2 are in a state of chip disable, current consumption will be no more than 3.0 µA. When the EN1 or EN2 pin's voltage is 0.65V or more, the mode will be chip enable and operations will recommence. With soft- start, 95% of the set output voltage will be reached within 10mS (TYP) from the moment of chip enable. The XC9502 series are multi-functional, 2 channel step-up and down DC/DC converter controller ICs with built-in high speed, low ON resistance drivers. Although IC starts oscillation from a VIN of 0.9V, the IC's power supply pin (VDD) and the output voltage monitor pin (FB1) should be connected to VOUT1. The start-up sequence for EN1 and EN2 is required when operations begin with a power supply voltage of VDD=0.9V, and channel two's (output 2) EN2 pin should be set to chip disable and turn it to enable when VOUT1 is more than 2.0V. For power supply voltages of V DD<2.0V, oscillation may occur irrespective of the FB pin voltage. Should this happen, you may find that output voltage will be higher than the set voltage. The FB pin voltage and the reference voltage Vref will be compared and output voltage will be controlled when the power supply voltage is V DD>2.0V or more. With power supply voltages of VDD>2.0V, the start-up sequence for EN1 and EN2 will not be required. The Error Amplifier is designed to monitor the output voltage and it compares the feedback voltage (FB) with the reference voltage. In response to feedback of a voltage lower than the reference voltage, the output voltage of the error amp. decreases.

<Setting of Output Voltage> VOUT=0.9 × (RFB11+RFB12) /RFB12 [Example of Calculation] When RFB11=200kΩ and RFB12=75kΩ, VOUT1=0.9 × (200K+75k) / 75k=3.3V. [Typical Example] The same method can be adopted for channel two (output 2) also. [External Components] Output 1 (Step-up DC/DC controller) Output 2 (Step-down DC/DC controller) Tr 1 : * MOSFET Tr 2 : * MOSFET XP161A1355PR (TOREX N-Channel Power MOSFET) XP162A12A6P (TOREX P-Channel Power MOSFET) SD 1 : MA2Q737 (Schottky , MATSUSHITA) SD 2 : MA2Q737 (Schottky , MATSUSHITA) CMS02 (Schottky, TOSHIBA) CMS02 (Schottky, TOSHIBA) L 1: 10 µH (SUMIDA, CDRH5D28, FOSC = 500kHz) L 2: 10 µH (SUMIDA, CDRH5D28, FOSC = 500kHz) 15µH (SUMIDA, CDRH5D28, FOSC = 300kHz) 22µH (SUMIDA, CDRH5D28, FOSC = 300kHz) 22µH (SUMIDA, CDRH5D28, FOSC = 180kHz) 47µH (SUMIDA, CDRH5D28, FOSC = 180kHz) CL1 : 16V, 47 µF (Tantalum) CL2 : 16V, 47 µF (Tantalum) C=(CL standard value)×(IOUT2 (mA)/500mA×VOUT2/VIN Tr : * NPN MOSFET Tr : * PNP MOSFET 2SD1628 (SANYO) 2SA1213 (SANYO) RB 1 : 500 Ω ( Adjust in accordance with load & Tr.'s HFE.) RB 2 : 500 Ω ( Adjust in accordance with load & Tr.'s HFE.) Set according to the equation below. Set according to the equation below. RB1 ≤ (VIN-0.7) x hFE / IC-REXTBH RB2 ≤ (VIN-0.7) x hFE / IC-REXTBH CB1 : 2200pF (Ceramic) CB1 : 2200pF (Ceramic) Set according to the equation below. Set according to the equation below. CB1 ≤ (2 π x RB2 x FOSC x 0.7) CB2 ≤ (2 π x RB2 x FOSC x 0.7) Note : VGS Breakdown Voltage of this Tr. is 8V so please be careful with the power supply voltage. For 6V power supply voltage, XP161A1265PR which VGS breakdown voltage is 12V is recommended. VST1 of XP161A1355PR is 1.2V (max.) and that of XP161A1265PR is 1.5V (max.) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs The value of CFB1(CFB2), speed-up capacitor for phase compensation, should be fzfb= 1 / (2 × π × CFB1 × RFB11) which is equal to 12kHz. Adjustments are required from 1kHz to 50kHz depending on the application, value of inductance (L), and value of load capacity (CL). Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based on the values of RFB11(RFB21) and RFB12(RFB22). The sum of RFB11(RFB21) and RFB12(RFB22) should normally be 1 M Ω or less. Increase capacity according to the equation below when the step-up voltage ratio is large and output current is high. C=(CL standard value)×(IOUT1(mA)/300mA×VOUT1/VIN VOUT (V) RFB11 (kΩ) RFB12 (kΩ) CFB1 (pF) 13 82 2.5 390 220 8.0 120 15 100 75 62 3.0 560 240 24 390 270 33 5.0 82 18 3.3 200 Note : VGS Breakdown Voltage of this Tr. is 12V so please be careful with the power supply voltage. Increase capacity according to the equation below when the step-up voltage ratio is large and output current is high. VOUT (V) RFB11 (kΩ) RFB12 (kΩ) CFB1 (pF) VOUT (V) RFB11 (kΩ) RFB12 (kΩ) CFB1 (pF) 330 270 39 1.0 1.5 1.8 2.0 30 270 430 220 220 62 220 330 62 2.7 360 180 12.0 160 1602.2

! Test Circuits 2ch. Step-up / down DC/DC Controller ICsXC9502 Series 510Ω 2200pF NPN Tr1RFB11 RFB12 CL1 VOUT1 510Ω2200pF L2PNP Tr2 RFB21 RFB22 RL2 CL2 VOUT2 VIN 1µF 200kΩ 75kΩ 62pF RL VIN CL1 VOUT1 CIN A OSC V VIN VOUT2 A A CIN A 1µF VDD OSC A A VPWM2 AA VEN2 A VFB2 A RL VIN VOUT1 CIN CL1 Nch MOSFET1 VDD 1µF 1µF VDD OSC VPWM2 VEN2 V VPWM1 VEN1 Rp SBD1 SBD1 SBD2 CIN CFB1 CFB2 510Ω 2200pF NPN Tr1RFB11 RFB12 CL1 VOUT1 510Ω2200pF L2PNP Tr2 RFB21 RFB22 RL2 CL2 VOUT2 VIN V A A Pch MOSFET2 L2 RL V VIN VOUT2 A A CIN 200kΩ 75kΩ CL2 62pF

! Peripheral Components Used for Test Circuits Circuits 1, 2 L1, L2 : 22 µH (SUMIDA CDRH5D28) : XC9502B092A 15µH (SUMIDA CDRH5D28) : XC9502B093A 10µH (SUMIDA CDRH5D28) : XC9502B095A SD1, SD2 : CRS02 (Schottky diode, TOSHIBA) EC10QS06 (Schottky diode, NIHON INTER) CL1, CL2 : 16MCE476MD2 (Tantalum, NIHON CHEMICON) 35MCE335MB2 x 3 (Tantalum, NIHON CHEMICON) CIN : 16MCE476MD2 (Tantalum, NIHON CHEMICON) NPN Tr1 : 2SD1628 (SANYO) PNP Tr1 : 2SA1213 (TOSHIBA) RFB : Please use by the conditions as below. RFB11 + RFB12 ≤ 1MΩ RFB21 + RFB22 ≤ 1MΩ RFB11 / RFB12 = (Setting Output Voltage / 0.9) -1 VOUT2=(0.9-VOUT1) X (RFB21/RFB22) + 0.9V CFB : Please adjust as below: fzfb=1/(2 x π x CFB1 x RFB11) = 1kHz ~50kHz ( 12kHz usual) fzfb=1/(2 x π x CFB2 x RFB21) = 1kHz ~50kHz ( 12kHz usual) Circuits 4 L1 : 22 µH (SUMIDA CDRH5D28) SD1 : MA2Q737 (Schottky diode, MATSUSHITA) CL1 : 16MCE476MD2 (Tantalum, NIHON CHEMICON) CIN : 16MCE476MD2 (Tantalum, NIHON CHEMICON) N-ch MOSFET1 : XP161A1355P (TOREX) Circuits 5 L1 : 22 µH (SUMIDA CDRH5D28) : XC9502B092A 15µH (SUMIDA CDRH5D28) : XC9502B093A 10µH (SUMIDA CDRH5D28) : XC9502B095A SD1 : MA2Q737 (Schottky, MATSUSHITA) CL1 : 16MCE476MD2 (Tantalum, NIHON CHEMICON) CIN : 16MCE476MD2 (Tantalum, NIHON CHEMICON) N-ch MOSFET1 : XP161A1355P (TOREX) Circuit 7 L1 : 22 µH (SUMIDA CDRH5D28) SD1 : MA2Q737 (Schottky diode, MATSUSHITA) CL1 : 16MCE476MD2 (Tantalum, NIHON CHEMICON) CIN : 16MCE476MD2 (Tantalum, NIHON CHEMICON) P-ch MOSFET1 : XP162A12A6P (TOREX) Circuit 8 L2 : 22 µH (SUMIDA CDRH5D28) : XC9502B092A 15µH (SUMIDA CDRH5D28) : XC9502B093A 10µH (SUMIDA CDRH5D28) : XC9502B095A SD2 : MA2Q737 (Schottky, MATSUSHITA) CL2 : 16MCE476MD2 (Tantalum, NIHON CHEMICON) CIN : 16MCE476MD2 (Tantalum, NIHON CHEMICON) P-ch MOSFET1 : XP161A12A6P (TOREX) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs

! NoteS on Use 1. Checking for Intermittent Oscillation 2. PWM/PFM Automatic Switching 3. Ratings Use the XC9502 series and peripheral components within the limits of their ratings. The XC9502 series is subject to intermittent oscillation in the proximity of the maximum duty if the step-down ratio is low (e.g., from 4.2 V to 3.3 V) or a heavy load is applied where the duty ratio becomes high. Check waveforms at EXT under your operating conditions. A remedy for this problem is to raise the inductance of coil L or increase the load capacitance CL. If PWM/PFM automatic switching control is selected and the step-up ration is low (e.g., from 4.5V to 5.0V) or the step-down ratio is high (e.g., from 10.0V to 1.0 V), the control mode remains in PFM setting in the whole load range, since the duty ratio under continuous-duty condition is smaller than the PFM duty ratio of the XC9502 series. The output voltage's ripple voltage becomes substantially high under heavy load conditions, with the XC9502 series appearing to be producing an abnormal oscillation. If this operation becomes a concern, set pins PWM1 and PWM2 to High to set the control mode to PWM setting. For use under the above-mentioned condition, measured data of PWM/PFM automatic switching control shown on the data sheets are available up to IOUT = 100 mA. XC9502 Series 2ch. Step-up / down DC/DC Controller ICs

! Typical Performance Characteristics < 1ch Step-up DC/DC Controller > (1) Output Voltage vs. Output Current Dotted Arrowhead PWM/PFM Switchin g Control 2ch. Step-up / down DC/DC Controller ICsXC9502 Series FOSC=180kHz, VOUT1= 1.5V 1.2 1.3 1.4 1.5 1.6 1.7 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Output Voltage1 VOUT1 (V) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 2.5V 2.2 2.3 2.4 2.5 2.6 2.7 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Output Voltage1 VOUT1 (V) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P VIN=0.9V 1.2V 1.5V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 8.0V 7.7 7.8 7.9 8.0 8.1 8.2 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Output Voltage1 VOUT1 (V) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1265P 4.2V VIN=3.3V 5.0VPWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Output Voltage1 VOUT1 (V) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P VIN=0.9V 1.2V,1.5V 2.7V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 5.0V 4.7 4.8 4.9 5.0 5.1 5.2 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Output Voltage1 VOUT1 (V) 2.7V VIN=1.5V 4.2V 3.3V L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P PWM/PFM Switching Control PWM Control

< 1ch Step-up DC/DC Controller > (1) Output Voltage vs. Output Current (Continued) Dotted Arrowhead PWM/PFM Switchin g Control XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT1= 2.5V 2.2 2.3 2.4 2.5 2.6 2.7 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Output Voltage1 VOUT1 (V) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 1.5V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT1= 2.5V 2.2 2.3 2.4 2.5 2.6 2.7 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Output Voltage1 VOUT1 (V) L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 1.5V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT1= 5.0V 4.7 4.8 4.9 5.0 5.1 5.2 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Output Voltage1 VOUT1 (V) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.5V VIN=1.2V 3.3V 2.7V 4.2V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT1= 3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Output Voltage1 VOUT1 (V) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 2.7V 1.5V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT1= 3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Output Voltage1 VOUT1 (V) 1.5V VIN=0.9V 1.2V 2.7V PWM/PFM Switching Control PWM Control L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P FOSC=500kHz, VOUT1= 5.0V 4.7 4.8 4.9 5.0 5.1 5.2 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Output Voltage1 VOUT1 (V) L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.5V VIN=0.9V 3.3V 2.7V 4.2V 1.2V PWM/PFM Switching Control PWM Control

< 1ch Step-up DC/DC Controller > (2) Efficiency vs. Output Current Dotted Arrowhead PWM/PFM Switchin g Control XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=180kHz, VOUT1= 1.5V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Efficiency1 EFFI 1 (%) 1.2VVIN=0.9V L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 2.5V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Efficiency1 EFFI 1 (%) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2VVIN=0.9V 1.5V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 3.3V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Efficiency1 EFFI 1 (%) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.5V VIN=0.9V 2.7V 1.2V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 5.0V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Efficiency1 EFFI 1 (%) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 2.7V VIN=1.5V 3.3V 4.2V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 8.0V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Efficiency1 EFFI 1 (%) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1265P 4.2V VIN=3.3V 5.0V PWM/PFM Switching Control PWM Control

< 1ch Step-up DC/DC Controller > (2) Efficiency vs. Output Current (Continued) Dotted Arrowhead PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT1= 2.5V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Efficiency1 EFFI 1 (%) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2VVIN=0.9V 1.5V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT1= 3.3V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Efficiency1 EFFI 1 (%) L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9 1.5V 2.7V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT1= 2.5V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Efficiency1 EFFI 1 (%) 1.2V VIN=0.9V 1.5V L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT1= 5.0V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Efficiency1 EFFI 1 (%) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.5V VIN=1.2V 3.3V 2.7V 4.2V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT1= 3.3V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Efficiency1 EFFI 1 (%) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 1.5V 2.7V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT1= 5.0V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Efficiency1 EFFI 1 (%) L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 3.3V VIN=0.9V 2.7V 1.5V 1.2V PWM/PFM Switching Control PWM Control 4.2V

< 1ch Step-up DC/DC Controller > (3) Ripple Voltage vs. Output Current Dotted Arrowhead PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=180kHz, VOUT1= 8.0V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Ripple Voltage1 (mV) 5.0V VIN=3.3 V L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1265P 4.2V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 1.5V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Ripple Voltage1 (mV) 1.2V VIN=0.9V L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 2.5V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Ripple Voltage1 (mV) VIN=0.9V 1.2V 1.5V L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 5.0V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Ripple Voltage1 (mV) 2.7V VIN=1.5V L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 4.2V 3.3V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT1= 3.3V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Ripple Voltage1 (mV) L1=22µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 1.5V 2.7V PWM/PFM Switching Control PWM Control

< 1ch Step-up DC/DC Controller > (3) Ripple Voltage vs. Output Current (Continued) Dotted Arrowhead PWM/PFM Switchin g Control XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT1= 2.5V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Ripple Voltage1 (mV) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 1.5V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT1= 3.3V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Ripple Voltage1 (mV) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 1.5V 2.7V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT1= 3.3V 100 0.1 1 10 100 1000 Output Current 1 IOUT1 (mA) Ripple Voltage1 (mV) 2.7V VIN=0.9V 1.2 1.5V PWM/PFM Switching Control PWM Control L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P FOSC=300kHz, VOUT1= 5.0V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Ripple Voltage1 (mV) L1=15µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P VIN=1.2V 3.3V 2.7V 4.2VPWM/PFM Switching Control PWM Control 1.5V FOSC=500kHz, VOUT1= 2.5V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Ripple Voltage1 (mV) L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 1.2V VIN=0.9V 1.5V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT1= 5.0V 100 0.1 1 10 100 1000 Output Current 1 I OUT1 (mA) Ripple Voltage1 (mV) L1=10µH(CDRH5D28), CL1=94µF(Tantalum) SD1:CMS02, Tr1:XP161A1355P 4.2V VIN=0.9V 2.7V 1.5V 3.3V 1.2V PWM/PFM Switching Control PWM Control

< 2ch Step-down DC/DC Controller > (4) Output Voltage vs. Output Current * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=180kHz, VOUT2=1.0V 0.7 0.8 0.9 1.0 1.1 1.2 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control L2=47µH(CDRH6D38), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10V VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V FOSC=180kHz, VOUT2=1.0V 0.7 0.8 0.9 1.0 1.1 1.2 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control L2=47µH(CDRH6D38), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10V VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V FOSC=300kHz, VOUT2=1.0V 0.7 0.8 0.9 1.0 1.1 1.2 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P FOCS=300kHz, VOUT2=1.0V 0.7 0.8 0.9 1.0 1.1 1.2 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control VIN=2.7V 3.3V 4.2V 6.0V 8.0V 10V 5.0V L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P FOSC=180kHz, VOUT2=5.0V 4.7 4.8 4.9 5.0 5.1 5.2 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control PWM Control L2=47µH(CDRH6D38), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN= 6.0V 8.0V 10V FOSC=180kHz, VOUT2=3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control PWM Control L2=47µH(CDRH6D38), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=4.2V 5.0V 6.0V 8.0V 10V

< 2ch Step-down DC/DC Controller > (4) Output Voltage vs. Output Current (Continued) * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT2=1.8V 1.5 1.6 1.7 1.8 1.9 2.0 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN= 2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V FOSC=300kHz, VOUT2=1.8V 1.5 1.6 1.7 1.8 1.9 2.0 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN= 2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V FOSC=300kHz, VOUT2=2.5V 2.2 2.3 2.4 2.5 2.6 2.7 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10V 3.3V 4.2V 5.0V 6.0V 8.0V VIN=2.7V FOSC=300kHz, VOUT2=3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10.0V VIN=4.2V 5.0V 6.0V 8.0V FOSC=300kHz, VOUT2=3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10.0V VIN=4.2V 5.0V 6.0V 8.0V FOSC=300kHz, VOUT2=2.5V 2.2 2.3 2.4 2.5 2.6 2.7 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10.0V VIN= 2.7V 3.3V 4.2V 5.0V 6.0V 8.0V

< 2ch Step-down DC/DC Controller > (4) Output Voltage vs. Output Current (Continued) * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT2=5.0V 4.7 4.8 4.9 5.0 5.1 5.2 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10.0V VIN= 6.0V 8.0V FOSC=300kHz, VOUT2=5.0V 4.7 4.8 4.9 5.0 5.1 5.2 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10.0V VIN= 6.0V 8.0V FOSC=500kHz, VOUT2=1.0V 0.7 0.8 0.9 1.0 1.1 1.2 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V FOSC=500kHz, VOUT2=3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Output Voltage2 VOUT2 (V) PWM/PFM Switching Control L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=4.2V 5.0V 6.0V 8.0V 10V FOSC=500kHz, VOUT2=3.3V 3.0 3.1 3.2 3.3 3.4 3.5 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=4.2V 5.0V 6.0V 8.0V 10V FOSC=500kHz, VOUT2=1.0V 0.7 0.8 0.9 1.0 1.1 1.2 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Output Voltage2 VOUT2 (V) PWM Control L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V

< 2ch Step-down DC/DC Controller > (5) Efficiency vs. Output Current * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=180kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Efficiency2 EFFI12 (%) L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 4.2V 3.3V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 6.0V VIN=4.2V 10V 8.0V 5.0V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT2=5.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 8.0V VIN=6.0V 10V PWM/PFM Switching Control PWM Control FOSC=180kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 6.0V VIN=5.0V 10V 8.0V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 8.0V VIN=5.0V 10V 6.0V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 3.3V PWM/PFM Switching Control PWM Control 4.2

< 2ch Step-down DC/DC Controller > (5) Efficiency vs. Output Current (Continued) * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT2=2.5V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr:2XP162A12A6P 4.2V VIN=2.7V 3.3V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT2=1.8V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 3.3V VIN= 2.7V 4.2V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT2=2.5V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 8.0V VIN=5.0V 10V 6.0V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT2=1.8V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 6.0V VIN=5.0V 8.0V 10V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 5.0VVIN=4.2V 6.0V 10V 8.0V PWM/PFM Switching Control PWM Control FOSC=300kHz, VOUT2=5.0V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Efficiency2 EFFI12 (%) L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 8.0V VIN=6.0V 10V PWM/PFM Switching Control PWM Control

< 2ch Step-down DC/DC Controller > (5) Efficiency vs. Output Current (Continued) * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=500kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 4.2V 3.3V VIN=2.7V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 8.0V VIN=6.0V 10V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Efficiency2 EFFI12 (%) L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10V VIN=5.0V 8.0V 6.0V PWM/PFM Switching Control PWM Control FOSC=500kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Efficiency2 EFFI12 (%) L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10V VIN=4.2V 5.0V 6.0V 8.0V PWM/PFM Switching Control PWM Control

< 2ch Step-down DC/DC Controller > (6) Ripple Voltage vs. Output Current * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=180kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 8.0V VIN=4.2V 6.0V 10V 5.0V FOSC=180kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 5.0V VIN=4.2V 10V8.0V6.0V FOSC=180kHz, VOUT2=5.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10V VIN=6.0V 8.0V FOSC=180kHz, VOUT2=5.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10VVIN=6.0V 8.0V FOSC=180kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Ripple Voltage2 (mV) VIN=2.7V PWM/PFM Switching Control L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2CMS02, Tr2:XP162A12A6P 6.0V10V 8.0V 5.0V4.2V 3.3V FOSC=180kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=47µH(CDRH6D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V

< 2ch Step-down DC/DC Controller > (6) Ripple Voltage vs. Output Current (Continued) * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT2=1.8V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P FOSC=300kHz, VOUT2=1.8V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V FOSC=300kHz, VOUT2=2.5V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 5.0V VIN=2.7V 3.3V4.2V6.0V8.0V10V FOSC=300kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 5.0V VIN=2.7V 3.3V8.0V 4.2V10V6.0V FOSC=300kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 4.2V 8.0V 10V VIN=2.7V 3.3V 5.0V 6.0V FOSC=300kHz, VOUT2=2.5V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V

< 2ch Step-down DC/DC Controller > (6) Ripple Voltage vs. Output Current (Continued) * When setting VOUT = 1.0V, VIN = 8.0V, 10.0V CL should be 94µF (Tantalum) + 100µF (OS capacitor) XC9502 Series 2ch. Step-up / down DC/DC Controller ICs FOSC=300kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=4.2V 5.0V 6.0V 8.0V 10V FOSC=300kHz, VOUT2=3.3V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10.0V VIN=4.2V 8.0V6.0V5.0V FOSC=300kHz, VOUT2=5.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10V VIN=6.0V 8.0V FOSC=300kHz, VOUT2=5.0V 100 0.1 1 10 100 1000 Output Current2 I OUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=22µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 10.0VVIN=6.0V 8.0V FOSC=500kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Ripple Voltage2 (mV) PWM/PFM Switching Control L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P 4.2V6.0V5.0V10V8.0V VIN=2.7V 3.3V FOSC=500kHz, VOUT2=1.0V 100 0.1 1 10 100 1000 Output Current2 IOUT2 (mA) Ripple Voltage2 (mV) PWM Control L2=10µH(CDRH5D28), CL2=94µF(Tantalum) SD2:CMS02, Tr2:XP162A12A6P VIN=2.7V 3.3V 4.2V 5.0V 6.0V 8.0V 10V

Typical Performance Characteristics (7) Supply Current vs. Supply Voltage (8) Supply Current 1-1 vs. Supply Voltage (9) Supply Current 1-2 vs. Supply Voltage (10) Supply Current 1-3 vs. Supply Voltage (11) Supply Current 1-4 vs. Supply Voltage (12) Supply Current 2 vs. Supply Voltage XC9502 Series 2ch. Step-up / down DC/DC Controllers XC9502B092 (180kHz) 100 150 200 250 300 350 02468 1 0 Supply Voltage VDD (V) Supply Current 1 IDD1 (µA) XC9502B092 (180kHz) 100 150 200 250 02468 1 0 Supply Voltage VDD (V) Supply Current 1-1 IDD1-1 (µA) XC9502B092 (180kHz) 100 150 200 250 02468 1 0 Supply Voltage VDD (V) Supply Current 2 IDD2 (µA) XC9502B092 (180kHz) 100 150 200 250 02468 1 0 Supply Voltage VDD (V) Power Supply 1-2 IDD1-2 (µA) XC9502B092 (180kHz) 100 150 200 250 02468 1 0 Supply Voltage VDD (V) Supply Current 1-4 IDD1-4 (µA) XC9502B092 (180kHz) 100 150 200 250 300 350 02468 1 0 Supply Voltage VDD (V) Supply Current 1-3 IDD1-3 (µA) Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C

(13) Oscillation Frequency vs. Supply Voltage (14) Standby Current vs. Supply Voltage (15) PWM1, 2 'H' 'L' Voltage vs. Supply Voltage (16) EN1, 2 'H' 'L' Voltage vs. Supply Voltage (17) Maximum Duty Ratio 1 vs. Supply Voltage (18) PFM Duty Ratio 1, 2 vs. Supply Voltage XC9502 Series 2ch. Step-up / down DC/DC Controllers XC9502B092 (180kHz) 02468 1 0 Supply Voltage VDD (V) Standby Current ISTB (µA) XC9502B092 (180kHz) 150 160 170 180 190 200 210 02468 1 0 Supply Voltage VDD (V) Oscillation Frequency Fosc (kHz) Topr=25OC 85OC - 40OC XC9502B092 (180kHz) 0.2 0.4 0.6 0.8 02468 1 0 Supply Voltage VDD (V) PWM1, 2 H' L' Voltage Vpwm1, 2 (V) 85OC Topr=25OC -40OC XC9502B092 (180kHz) 0.2 0.4 0.6 0.8 02468 1 0 Supply Voltage VDD (V) EN1, 2 'H' 'L' Voltage VEN1, 2 (V) 85o C Topr=25o C -40OC XC9502B092 (180kHz) 02468 1 0 Supply Voltage VDD (V) Max. Duty Ratio 1 Maxdty 1 (%) XC9502B092(180kHz) 02468 1 0 Supply Voltage VDD (V) PFM Duty Ratio 1, 2(%) Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C

(19) EXT 1, 2 High ON Resistance vs. Supply Voltage (20) EXT 1, 2 Low ON Resistance vs. Supply Voltage (21) Output Voltage vs. Ambient Temperature (22) Oscillation Start-up Voltage vs. Ambient Temperature (23) Operation Retention Voltage vs. Ambient Temperature (24) Operation Start-up Voltage vs. Ambient Temperature XC9502 Series 2ch. Step-up / down DC/DC Controllers XC9502B092 (180kHz) 02468 1 0 Supply Voltage VDD (V) EXT1, 2 L ON Resistance (Ω) XC9502B092 (180kHz) 02468 1 0 Supply Voltage VDD (V) EXT1, 2 H ON Resistance (Ω) XC9502B093(300kHz) 3.0 3.1 3.2 3.3 3.4 3.5 -50 -20 10 40 70 100 Ambient Temperature Ta( 0 C) Output Voltage VOUT(V) L=22µH(CDRH5D28), CL=94µF(Tantalum) Tr:XP161A1265P, SD:CMS02 VIN=1.8V IOUT=200mA XC9502B092 (180kHz,VOUT1=2.0V) 0.2 0.4 0.6 0.8 -40 -20 0 20 40 60 80 100 Ambient Temperature Ta(o C) Oscillation Starting Voltage VST2(V) XC9502B092(180kHz,VOUT1=3.3V) 0.2 0.4 0.6 0.8 1.2 -40 -20 0 20 40 60 80 100 Ambient Temperature Ta( o C) Operation Start-up Voltage VST1(V) IOUT=1mA L=22µH(CDRH5D28), CL=47µF(Tantalum) SD:MA2Q737, Tr:2SD1628G XC9502B092(180kHz,VOUT1=3.3V) 0.2 0.4 0.6 0.8 -40 -20 0 20 40 60 80 100 Ambient Temperature Ta ( o C) Operation Retention Voltage VHLD (V) L=22µH(CDRH5D28), CL=47µF(Tantalum) SD:MA2Q737, Tr:2SD1628G IOUT=1mA Topr=85o C 25o C -40o C Topr=85o C 25o C -40o C

(25) Soft-Start Time 1, 2 vs. Supply Voltage XC9502 Series 2ch. Step-up / down DC/DC Controllers XC9502B092 (180kHz) 02468 1 0 Supply Voltage VDD (V) Soft-Start Time 1, 2 TSS1, 2(msec)

Load Transient Response [1 channel : Step-up DC/DC Controller] < VOUT1 = 3.3V, VIN = 2.0V IOUT1, 2 =100 µA Q 100mA > PWM Control PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controllers 100µA 100mA 3.3VCH1 CH2 200µsec/div CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1 , 50mA/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=100µA→ 100mA 100µA 100mA 3.3VCH1 CH2 10msec/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=100mA→ 100µA 100µA 100mA 3.3V CH1 CH2 10msec/div 100µA 100mA 3.3VCH1 CH2 200µsec/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=100µA→ 100mA FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=100mA→ 100µA CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1 , 50mA/div CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1 , 50mA/div CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1 , 50mA/div

Load Transient Response [1 channel : Step-up DC/DC Controller] < VOUT1 = 3.3V, VIN = 2.0V IOUT1, 2 =10mA Q 100mA > PWM Control PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controllers ICs 10mA 100mA 3.3VCH1 CH2 200µsec/div CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1, 50mA/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=10mA→ 100mA 10mA 100mA 3.3VCH1 CH2 200µsec/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=100mA→ 10mA 10mA 100mA 3.3VCH1 CH2 200µsec/div 10mA 100mA 3.3VCH1 CH2 200µsec/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=10mA→ 100mA FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=100mA→ 10mA CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1, 50mA/div CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1, 50mA/div CH1:VOUT1 , AC-COUPLED, 50mV/div CH2:IOUT1, 50mA/div

Load Transient Response [1 channel : Step-up DC/DC Controller] <PWM Control D PWM/PFM Switching Control> <Soft Start Wave Form> * EN2=GND XC9502 Series 2ch. Step-up / down DC/DC Controllers ICs 0.65V 3.3VCH1 CH2 1msec/div CH1:VOUT1 , AC-COUPLED ,10mV/div CH2:PWM1 , 0.5V/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=1mA PWM1 ’L'J’H’ 0.65V 3.3VCH1 CH2 1msec/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=1mA PWM1 ’H’J’L’ CH1:VOUT1, AC-COUPLED ,10mV/div CH2:PWM1, 0.5V/div FOSC=180kHz, VOUT1=3.3V VIN=2.0V, IOUT1=100mA EN1 ’L’J’H’ CIN=47µF CH1 CH2 CH3 3.3V 0.65V 300mA 4ms/div CH1:VOUT1, 1.0V/div CH2:IIN1, 100mA/div CH3:EN1 , 0.5V/div

Load Transient Response [2 channel : Step-down DC/DC Controller] < VOUT2=3.3V, VIN=5.0V IOUT2=100µA Q 300mA> PWM Control PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controllers ICs 100µA 300mA 3.3VCH1 CH2 200µsec/div CH1:VOUT2 , AC-COUPLED, 100mV/div CH2:IOUT2 , 150mA/div FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=100µA→ 300mA 100µA 300mA 3.3VCH1 CH2 10msec/div FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=300mA→100µA 100µA 300mA 3.3VCH1 CH2 10msec/div 100µA 300mA 3.3VCH1 CH2 200µsec/div FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=100µA→ 300mA FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=300mA→100µA CH1:VOUT2 , AC-COUPLED, 50mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 100mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 100mV/div CH2:IOUT2 , 150mA/div

Load Transient Response [2 channel : Step-down DC/DC Controller] < VOUT2=3.3V, VIN=5.0V IOUT2=10mA Q 300mA> PWM Control PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controllers ICs 300mA 3.3VCH1 CH2 200µsec/div 10mA 300mA 3.3VCH1 CH2 200µsec/div 10mA 300mA 3.3VCH1 CH2 200µsec/div 10mA 300mA 3.3VCH1 CH2 400µsec/div 10mA FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=10mA→ 300mA FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=10mA→ 300mA FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=300mA→10mA FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=300mA→10mA CH1:VOUT2 , AC-COUPLED, 50mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 100mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 50mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 50mV/div CH2:IOUT2 , 150mA/div

Load Transient Response [2 channel : Step-down DC/DC Controller] < VOUT2=0.9V, VIN=3.3V IOUT2=100µA Q 300mA> PWM Control PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controllers ICs 100µA 300mA 0.9VCH1 CH2 200µsec/div 100µA 300mA 0.9V CH1 CH2 4msec/div 100µA 300mA 0.9VCH1 CH2 4msec/div 100µA 300mA 0.9VCH1 CH2 200µsec/div CH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/div FOSC=300kHz, VOUT2=0.9V IN=3.3V, IOUT2=100µA→ 300mA FOSC=300kHz, VOUT2=0.9V VIN=3.3V, IOUT2=100µA→ 300mA FOSC=300kHz, VOUT2=0.9V VIN=3.3V, IOUT2=300mA→100µA FOSC=300kHz, VOUT2=0.9V VIN=3.3V, IOUT2=300mA→100µA

Load Transient Response [2 channel : Step-down DC/DC Controller] < VOUT2=0.9V, VIN=3.3V IOUT2=10mA Q 300mA> PWM Control PWM/PFM Switching Control XC9502 Series 2ch. Step-up / down DC/DC Controllers ICs 10mA 300mA 0.9VCH1 CH2 200µsec/div 10mA 300mA 0.9VCH1 CH2 200µsec/div 10mA 300mA 0.9VCH1 CH2 100µsec/div 10mA 300mA 0.9V CH1 CH2 100µsec/div CH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/divCH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/div CH1:VOUT2 , AC-COUPLED, 20mV/div CH2:IOUT2 , 150mA/div FOSC=300kHz, VOUT2=0.9V VIN=3.3V, IOUT2=10mA→ 300mA FOSC=300kHz, VOUT2=0.9V VIN=3.3V, IOUT2=10mA→ 300mA FOSC=300kHz, VOUT2=0.9V VIN=3.3V, IOUT2=300mA→ 10mA FOSC=300kHz, VOUT2=0.9V VIN=3.3V, IOUT2=300mA→ 10mA

Load Transient Response [2 channel : Step-down DC/DC Controller] <PWM Control D PWM/PFM Switching Control> <Soft Start Wave Form> * EN1=GND XC9502 Series 2ch. Step-up / down DC/DC Controllers ICs 0.65V 3.3VCH1 CH2 400µsec/div CH1:VOUT2 , AC-COUPLED ,10mV/div CH2:PWM2 , 0.5V/div FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=5mA PWM2 ’L’J’H’ 0.65V 3.3VCH1 CH2 200µsec/div FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=5mA PWM2 ’H’J’L’ CH1:VOUT2, AC-COUPLED ,20mV/div CH2:PWM2, 0.5V/div FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=300mA EN2 ’L’→’H’ CIN=47µF CH1 CH2 CH3 3.3V 0.65V 200mA 4ms/div CH1:VOUT2 , 2.0V/div CH2:IIN2, 100mA/div CH3:EN2 , 0.5V/div FOSC=300kHz, VOUT2=3.3V VIN=5.0V, IOUT2=100mA EN2 ’L’→’H’ CIN=47µF CH1 CH2 CH3 3.3V 0.65V 75mA 4ms/div CH1:VOUT2 , 2.0V/div CH2:IIN2, 50mA/div CH3:EN2 , 0.5V/div

Product Information

XC9502B095AR specifications and overview.

Summary

2ch. Step-up / down DC/DC Controller ICs

Description

2ch. Step-up / down DC/DC Controller ICs

Source title XC9502B095AR Datasheet(PDF) - Torex Semiconductor

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