P1696L-50-SO8-T

P1696 UTC | Alldatasheet

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UNISONIC TECHNOLOGIES CO., LTD P1696 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 7 Copyright © 2006 Unisonic Technologies Co., Ltd QW-R103-035,B 150KHZ, 2A PWM STEP-DOWN DC/DC CONVERTER „ DESCRIPTION The UTC P1696 series is a step-down switching regulator able to provide 2A output current. The availa ble output voltages are 2.5V 3.3V, 5V, 12V, and an adjustable output version. „ FEATURES *Output load current: 2A *Adjustable version output voltage range, 1.23V ~ 27.5V±4% *Operating voltage can be up to 30V (VIN->30V) *Low power standby mode *High efficiency *Internal current and thermal limit SOP-8 *Pb-free plating product number:P1696L „ ORDERING INFORMATION Order Number Normal Lead Free Plating Package Packing P1696-xx-S08-R P 1696L-xx-S08-R SOP-8 Tape Reel P1696-xx-S08-T P1696L-xx-S08-T SOP-8 Tube P1696 L-xx-S08-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Lead Plating (1) R: Tape Reel, T: Tube (2) S08: SOP-8 (3) xx: (4) L: Lead Free Plating , Blank: Pb/Sn „ PIN DESCRIPTION PIN NO. PIN NAME DESCRIPTION

1 V IN Operating voltage input

2 Output Switching output

3 FB (Feedback) Output voltage feedback control

4 SD (Shutdown) ON/OFF shutdown

5,6,7,8 GND Circuit Ground

P1696 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 7 www.unisonic.com.tw QW-R103-035,B „ BLOCK DIAGRAM Pre-driver Output Switch Gnd Comp Amp VIN FB Current Source bias 1.235V Reference 2.5V Regulator Start up ON / OFF Comp+ 150kHz OSC. Thermal Shutdown Comp Frequency Compe- nsation

P1696 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 7 www.unisonic.com.tw QW-R103-035,B „ ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Maximum Supply Voltage V CC 40 V Operating Voltage V OPR 3.8 ~ 30 V ON/OFF Pin Input Voltage V ON/OFF -0.3 ~ +25 V Feedback Pin Voltage V FB -0.3 ~ +25 V Output Voltage to Ground (Steady State) V OUT -1 V Power Dissipation P D Internally limited mW Junction Temperature T J +150 Ċ Operating Temperature T OPR -40 ~ +125 Ċ Storage Temperature T STG -40 ~ +150 Ċ Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. „ ELECTRICAL CHARACTERISTICS (TJ=25 , Ċ VIN=12V for the 2.5V 3.3V, 5V, and Adjustable version and VIN=24V for the 12V version, ILOAD=500mA.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT 12V VOUT 15VÙVIN 3Ù 0V, 0.2AÙILOADÙ2A 11.52 12.0 12.48 V 2.5V VIN=12V, ILOAD=2A 73 % 3.3V VIN=12V, ILOAD=2A 75 % 5.0V VIN=12V, ILOAD=2A 80 % Efficiency 12V η VIN=25V, ILOAD=2A 80 % UTC P1696-ADJ Feedback Voltage V FB 4.5VÙVIN 3Ù 0V, 0.2AÙILOADÙ2A VOUT programmed for 3V 1.19 1.230 1.267 V Efficiency η V IN=12V, VOUT=3V, ILOAD=2A 75 % ALL OUTPUT VOLTAGE Feedback Bias Current I BIAS Adjustable Version Only, VFB=1.3V 10 50 nA Oscillator Frequency f OSC (Note 1) 127 150 173 kHz Saturation Voltage V SAT IOUT=2A (Note 2, 3) 1.16 1.4 V Max Duty Cycle (ON) Min Duty Cycle (OFF) DC (Note 3) (Note 4) 100 Current Limit I CL Peak Current (Notes 2, 3) 2 A Output=0V (Notes 2, 4) 50 µAOutput Leakage Current I L Output=-1V (Note 5) 2 30 mA Quiescent Current I Q (Note 4) 5 10 mA Standby Quiescent Current I STBY ON/OFF pin=5V (OFF) (Note 5) 80 200 µA ON/OFF CONTROL VIH Low (Regulator ON) 1.3 0.6 V ON/OFF Pin Logic Input Threshold Voltage VIL High (Regulator OFF) 2.0 1.3 V IH VLOGIC=2.5V (Regulator OFF) 5 15 µAON/OFF Pin Input Current IL VLOGIC=0.5V (Regulator ON) 0.02 5 µA Note 1: The switching frequency is reduced when the second stage current limit is activated. 2: No diode, inductor or capacitor connected to output pin. 3: Feedback pin removed from output and connected to 0V to force the output transistor switch ON. 4: Feedback pin remove d from output and connected to 12V for t he 2.5V 3.3V, 5V, and the ADJ. version, and 15V for the 12V version, to force the output transistor switch OFF. 5: VIN = 30V

P1696 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 4 of 7 www.unisonic.com.tw QW-R103-035,B „ TYPICAL APPLICATION (Fixed Output Voltage Versions) Co Capacitor 5.0V/2A Output LoadL1 Inductor Output Schottky Diode Gnd UTC P1696 -5.0V1 5,6,7,8 VIN FB 12V DC Input on / offCIN Capacitor „ ADJUSTABLE OUTPUT VOLTAGE VERSIONS P1696-ADJ +VIN UNREGULATED DC INPUT 5,6,7,8 GND ON/OFF Output Keep Feedback Wiring Away From Inductor Flux Regulated Output L O A D COUT++ CIN Feedback Locate The Programming Resistors Near The Feedback Pin Using Short Leads Heavy Lines Must be Kept Short and Use Ground Plane Construction for Best Results CFF R2R1 R2R1 + VOUT€() = V REF )VOUT = VREF (1 + Where VREF = 1.23V VOUT VREF -1)R2 = R1(

P1696 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 5 of 7 www.unisonic.com.tw QW-R103-035,B „ TYPICAL CHARACTERISTICS Input Voltage (V) 4.85 4.90 4.95 5.00 5.05 5.10 5.15Output Voltage (V) Line Regulation 0 5 10 15 20 25 30125 VOUT=5V, ILOAD=100mA Normalized at TJ=25¥ 100 Input Voltage (V) 90 2A Load Efficiency (%) Efficiency 0 5 1 01 52 02 53 0 3.3V 5.0V 0.5 1 2 3 Switch Current(A) 0.60 0.80 1.00 1.20 1.40 1.60 Saturation Voltage (V) Switch Saturation Voltage 1 : -40 ¥ 2 : 25 ¥ 3 : 125¥ -25 0 25 50 75 100 Junction Temperature (¥) 3.50 3.75 4.00 4.25 4.50 4.75 5.00 -50 Switch Current Limit (A) Switch Current Limit 125 -25 0 25 50 75 100 125 0.00 5.00 10.0 15.0 20.0 25.0 30.0 -50 Supply Current (mA) Operating Quiescent Current Junction Temperature (¥) 4.5V< VIN < 30V ISWITCH =0 Switch ON Switch OFF VIN =12V, VOUT =5V -25 0 25 50 75 4.85 4.90 4.95 5.00 5.05 5.10 5.15 -50 Normalized Output Voltage VIN=20V,LLOAD=2A Normalized at TJ=25 ¥ Output Voltage (V) Junction Temperature (¥)

P1696 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 6 of 7 www.unisonic.com.tw QW-R103-035,B „ TYPICAL CHARACTERISTICS(Cont.) 120 160 200 Supply Voltage (V) VON/OFF =5V 1 : -40¥ 2 : 25 ¥ 3 : 125 ¥ Current (uA) Shutdown Quiescent Current 0 5 10 15 20 25 30 100 125 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -50 -25 0 25 50 75 Juntion Temperature (¥) VOUT=1.23V ILOAD =200mA Supply Voltage (V) Minimum Operating Supply Voltage -25 0 25 50 75 100 125 Junction Temperature (¥) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -50 Threshold Voltage (V) ON/OFF Threshold Voltage OFF ON 10 15 20 22 23 24 25 ON/OFF Pin Voltage (V) 0.0 120 150 180 0.0 Current (uA) ON/OFF Pin Current (Sinking) VIN=40V -40¥< TJ <125¥ -25 0 25 50 75 100 125 0.0 100 150 200 250 300 -50 VIN =20V, I LOAD=2A Normalized at TJ=25¥ Frequency (kHz) Switch Frequency 0.0 Junction Temperature (¥) -25 0 25 50 75 100 125 Junction Temperature (¥) -50 Adjustable Version Only Bias Current (nA) Feedback Pin Bias Current

P1696 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 7 of 7 www.unisonic.com.tw QW-R103-035,B UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.