R1111N301A

R1111N RICOH | Alldatasheet

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'99.7.22 LOW NOISE 150mA LDO REGULATOR R1111N SERIES Rev.1.11 - 1 - I OUTLINE The R1111N Series are voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON- resistance, and high Ripple Rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors, a current limit circuit, and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function. The line transient response and load transient response of the R1111N Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. The output voltage of these ICs is fixed with high accuracy. Since the package for these ICs are SOT-23-5 (Mini-mold) package , high density mounting of the ICs on boards is possible. I FEATURES Low Temperature-Drift Coefficient of Excellent Line Transient Response and Load Transient Response possible Built-in chip enable circuit ( 2 types; A: “L” active , B: “H” active) I APPLICATIONS Power source for cellular phones such as GSM,CDMA and various kind of PCSs. Power source for electrical appliances such as cameras, VCRs and camcorders. Power source for battery-powered equipment. I BLOCK DIAGRAM R1111NXX1A R1111NXX1B Vref Current Limit VDD VOUT GND CE Vref Current Limit VDD VOUT GND CE

Rev.1.11 - 2 - I SELECTION GUIDE The output voltage, the active type, the packing type, and the taping type for the ICs can be selected at the user's request. The selection can be made by designating the part number as shown below : R1111XXX1X-XX ←Part Number ↑↑↑ a b c d Code

Contents

a Designation of Package Type : N:SOT-23-5 (Mini-mold) b Setting Output Voltage (VOUT) : Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is possible. c Designation of Active Type : A :“L” active type B :“H” active type d Designation of Taping Type : Ex. TR, TL (refer to Taping Specifications ;TR type is the standard direction.) I PIN CONFIGURATION SOT-23-5 VOUT NC (mark side) VDD GND CE I PIN DESCRIPTION Pin No. Symbol

Description

Rev.1.11 - 3 - I ABSOLUTE MAXIMUM RATINGS Item Symbol Rating Unit Input Voltage VIN V Input Voltage( CE or CE Pin) VCE -0.3 ~ VIN+0.3 V Output Voltage VOUT -0.3 ~ VIN+0.3 V Power Dissipation PD 250 mW Operating Temperature Range Topt -40 ~ 85 Storage Temperature Range Tstg -55 ~ 125 I ELECTRICAL CHARACTERISTICS G R1111NXX1A Topt=25°C Symbol Item Conditions MIN. TYP. MAX. Unit VOUT Output Voltage VIN = Set VOUT+1V 1mA ≤ IOUT ≤ 30mA VOUT ×0.98 VOUT ×1.02 V IOUT Output Current Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE ∆VOUT/∆IOUT Load Regulation VIN = Set VOUT+1V 1mA ≤ IOUT ≤ 80mA mV VDIF Dropout Voltage Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE ISS Supply Current VIN = Set VOUT+1V µA Istandby Supply Current (Standby) VIN = VCE = Set VOUT+1V 0.1 1.0 µA ∆VOUT/∆VIN Line Regulation Set VOUT+0.5V ≤ VIN ≤ 8V IOUT = 30mA 0.05 0.20 %/V RR Ripple Rejection f = 1KHz, Ripple 0.5Vp-p VIN = Set VOUT+1V dB VIN Input Voltage V ∆VOUT/∆T Output Voltage Temperature Coefficient IOUT = 30mA -40°C ≤ Topt ≤ 85°C ±100 ppm /°C Ilim Short Current Limit VOUT = 0V mA RPU CE Pull-up Resistance 2.5 MΩ VCEH CE Input Voltage “H” 1.5 VIN V VCEL CE Input Voltage “L” 0.25 V en Output Noise BW = 10Hz ∼ 100kHz µVrms

Rev.1.11 - 4 - G R1111NXX1B Topt=25°C Symbol Item Conditions MIN. TYP. MAX. Unit VOUT Output Voltage VIN = Set VOUT+1V 1mA ≤ IOUT ≤ 30mA VOUT ×0.98 VOUT ×1.02 V IOUT Output Current Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE ∆VOUT/∆IOUT Load Regulation VIN = Set VOUT+1V 1mA ≤ IOUT ≤ 80mA mV VDIF Dropout Voltage Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE ISS Supply Current VIN = Set VOUT+1V µA Istandby Supply Current (Standby) VIN = Set VOUT+1V VCE=GND 0.1 1.0 µA ∆VOUT/∆VIN Line Regulation Set VOUT+0.5V ≤ VIN ≤ 8V IOUT = 30mA 0.05 0.20 %/V RR Ripple Rejection f = 1KHz, Ripple 0.5Vp-p VIN = Set VOUT+1V dB VIN Input Voltage V ∆VOUT/∆T Output Voltage Temperature Coefficient IOUT = 30mA -40°C ≤ Top t ≤ 85°C ±100 ppm /°C Ilim Short Current Limit VOUT = 0V mA RPD CE Pull-down Resistance 2.5 MΩ VCEH CE Input Voltage “H” 1.5 VIN V VCEL CE Input Voltage “L” 0.25 V en Output Noise BW = 10Hz ∼ 100kHz µVrms G ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE Topt = 25°C Output Current IOUT (mA) Output Voltage Condition MIN. 1.5 ≤ VOUT ≤ 1.7 100 1.8 ≤ VOUT ≤ 5.0 VIN - VOUT = 1.0V 150 Topt = 25°C Dropout Voltage VDIF (V) Output Voltage VOUT (V) Condition MIN. TYP. MAX. 1.5 0.5 1.6 0.4 1.7 0.3 1.8 ≤ VOUT ≤ 1.9 0.60 1.40 2.0 ≤ VOUT ≤ 2.4 0.35 0.70 2.5 ≤ VOUT ≤ 2.7 0.24 0.35 2.8 ≤ VOUT ≤ 3.3 0.20 0.30 3.4 ≤ VOUT ≤ 5.0 IOUT = 100mA 0.17 0.26

Rev.1.11 - 5 - I OPERATION R1111NXX1A R1111NXX1B VDD VOUT GND CE Current Limit Vref VDD VOUT GND CE Current Limit Vref In these ICs, fluctuation of Output Voltage, VOUT is detected by Feed-back Registers R1, R2, and the result is compared with a reference voltage by Error Amplifier, so that a constant voltage is output. A current limit circuit for Protection at short mode and a chip enable circuit are included.

Rev.1.11 - 6 - I TEST CIRCUITS R1111Nxx1B Series VDD VOUT IOUT IN OUT GND CE 0.1µF 2.2µF R1111Nxx1B Series VDD VOUT ISS IN OUT GND CE 0.1µF 2.2µF Fig.1 Standard test Circuit Fig.2 Supply Current Test Circuit R1111Nxx1B Series VDD P.G VOUT IOUT IN OUT GND CE R1111Nxx1B Series VDD VOUT IN OUT GND CE 1µF Fig.3 Ripple Rejection, Line Transient Response Test Circuit Fig.4 Load Transient Response Test Circuit

Rev.1.11 - 7 - I TYPICAL CHARACTERISTICS Output Voltage vs. Output Current R1111N181B R1111N301B 2.0 1.8 1.6 1.0 0.8 0.6 0.4 0.2 1.4 1.2 0.0 Output Current IOUT (mA) 200 300 400 500 100 Output Voltage VOUT (V) 3.8V 2.8V 2.3V VIN = 2.1V Topt = 25°C 3.5 2.5 1.5 1.0 0.5 2.0 3.0 0.0 Output Current IOUT (mA) 200 300 400 500 100 Output Voltage VOUT (V) 5.0V 4.0V 3.5V VIN = 3.3V Topt = 25°C R1111N401B R1111N501B 5.0 4.5 4.0 2.5 2.0 1.5 1.0 0.5 3.5 3.0 0.0 Output Current IOUT (mA) 200 300 400 500 100 Output Voltage VOUT (V) 6.0V 5.0V 4.5V VIN = 4.3V Topt = 25°C 6.0 5.0 3.0 2.0 1.0 4.0 0.0 Output Current IOUT (mA) 200 300 400 500 100 Output Voltage (V) 7.0V 6.0V 5.5V VIN = 5.3V Topt = 25°C Output Voltage vs. Input Voltage R1111N181B R1111N301B 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.2 1.3 Input Voltage VIN (V) 1.0 4.0 5.0 6.0 7.0 8.0 2.0 3.0 Output Voltage VOUT (V) IOUT = 1mA 30mA 50mA Topt = 25°C 3.1 3.0 2.9 2.8 2.7 2.5 2.6 Input Voltage VIN (V) 2.0 4.0 5.0 6.0 7.0 8.0 3.0 Output Voltage VOUT (V) Topt = 25°C 30mA 50mA IOUT=1mA

Rev.1.11 - 8 - R1111N401B R1111N501B 4.5 4.0 3.5 3.0 2.5 Intput Voltage VIN (V) 2.0 4.0 5.0 6.0 8.0 7.0 3.0 Output Voltage VOUT (V) IOUT = 1mA 30mA 50mA Topt = 25°C 5.5 5.0 4.0 3.5 3.0 4.5 2.5 Intput Voltage VIN (V) 2.0 4.0 5.0 6.0 8.0 7.0 3.0 Output Voltage VOUT (V) IOUT = 1mA 30mA 50mA Topt = 25°C Dropout Voltage vs. Output Current R1111N181B R1111N301B 1.20 1.00 0.80 0.60 0.40 0.20 0.00 Output Current IOUT (mA) 100 150 Dropout Voltage VDIF (V) Topt = 85°C 25°C -40°C 0.40 0.35 0.30 0.20 0.15 0.10 0.05 0.25 0.00 Output Current IOUT (mA) 100 150 Dropout Voltage VDIF (V) Topt = 85°C 25°C -40°C R1111N401B R1111N501B 0.40 0.35 0.30 0.25 0.20 0.15 0.00 0.05 0.10 Output Current IOUT (mA) 100 150 Dropout Voltage VDIF (V) Topt = 85°C 25°C -40°C 0.40 0.35 0.30 0.25 0.20 0.15 0.00 0.05 0.10 Output Current IOUT (mA) 100 150 Dropout Voltage VDIF (V) Topt = 85°C 25°C -40°C

Rev.1.11 - 9 - Output Voltage vs. Temperature R1111N181B R1111N301B 1.90 1.88 1.86 1.80 1.78 1.76 1.74 1.72 1.84 1.82 1.70 Temperature Topt ° -50 100 -25 Output Voltage VOUT (V) VIN = 2.8V IOUT = 30mA 3.10 3.08 3.06 3.00 2.98 2.96 2.94 2.92 3.04 3.02 2.90 Temperature Topt ° -50 100 -25 Output Voltage VOUT (V) IOUT = 30mA VIN = 4.0V R1111N401B R1111N501B 4.10 4.08 4.06 4.00 3.98 3.96 3.94 3.92 4.04 4.02 3.90 Temperature Topt ° -50 100 -25 Output Voltage VOUT (V) IOUT = 30mA VIN = 5.0V 5.10 5.08 5.06 5.00 4.98 4.96 4.94 4.92 5.04 5.02 4.90 Temperature Topt ° -50 100 -25 Output Voltage VOUT (V) IOUT = 30mA VIN = 6.0V Supply Current vs. Input Voltage R1111N181B R1111N301B Input Voltage VIN (V) 1.0 2.0 4.0 5.0 6.0 7.0 8.0 3.0 Supply Current I ISS µ Topt = 25°C Input Voltage VIN (V) 1.0 2.0 4.0 5.0 6.0 7.0 8.0 3.0 Supply Current I ISS µ Topt = 25°C

Rev.1.11 - 10 - R1111N401B R1111N501B Intput Voltage VIN (V) 1.0 4.0 5.0 6.0 7.0 8.0 2.0 3.0 Supply Current ISS µ Topt = 25°C Intput Voltage VIN (V) 1.0 4.0 5.0 6.0 7.0 8.0 2.0 3.0 Supply Current ISS µ Topt = 25°C Supply Current vs. Temperature R1111N181B R1111N301B Temperature Topt (°C) -50 100 Supply Current ISS (µA) VIN = 2.8V Temperature Topt (°C) -50 100 Supply Current ISS (µA) VIN = 4.0V R1111N401B R1111N501B Temperature Topt (°C) -50 100 Supply Current ISS (µA) VIN = 5.0V Temperature Topt (°C) -50 100 Supply Current ISS (µA) VIN = 6.0V

Rev.1.11 - 11 - Dropout Voltage vs. Set Output Voltage R1111N××1B 0.8 0.9 1.0 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 1.0 2.0 3.0 4.0 5.0 IOUT = 150mA IOUT = 100mA IOUT = 50mA IOUT = 30mA IOUT = 10mA Set Output Voltage Vreg (V) Dropout Voltage VDIF (V) Topt = 25 Ripple Rejection vs. Frequency R1111N181B R1111N181B 0.1 100 IOUT = 1mA IOUT = 30mA IOUT = 50mA Frequuency f (kHz) Ripple Rejection RR (dB) VIN = 2.8VDC + 0.5Vp-p COUT = tantal 1.0µF 0.1 100 IOUT= 1mA IOUT = 30mA IOUT = 50mA Frequuency f (kHz) Ripple Rejection RR (dB) VIN = 2.8VDC + 0.5Vp-p COUT = tantal 2.2µF R1121N301B R1121N301B 0.1 100 IOUT = 1mA IOUT = 30mA IOUT = 50mA Frequuency f (kHz) Ripple Rejection RR (dB) VIN = 4VDC + 0.5Vp-p COUT = tantal 1.0µF 0.1 100 IOUT = 1mA IOUT = 30mA IOUT = 50mA Frequuency f (kHz) Ripple Rejection RR (dB) VIN = 4VDC + 0.5Vp-p COUT = tantal 2.2µF

Rev.1.11 - 12 - R1111N401B R1111N401B 0.1 100 IOUT= 1mA IOUT = 30mA IOUT = 50mA Frequeney f (kHz) Ripple Rejection RR (dB) VIN = 5.0VDC + 0.5Vp-p COUT = tantal 1.0µF 0.1 100 IOUT = 1mA IOUT = 30mA IOUT = 50mA Frequeney f (kHz) Ripple Rejection RR (dB) VIN = 5.0VDC + 0.5Vp-p COUT = tantal 2.2µF Ripple Rejection vs. Input Voltage (DC bias) R1111N301B R1111N301B 3.1 3.2 3.3 3.4 3.5 f = 400Hz f = 1kHz f = 10kHz Input Voltage VIN (V) Ripple Rejection RR (dB) IOUT = 1mA COUT = 2.2µF 3.1 3.2 3.3 3.4 3.5 f = 400Hz f = 1kHz f = 10kHz Input Voltage VIN (V) IOUT = 10mA COUT = 2.2µF Ripple Rejection RR(dB) R1111N301B f = 400Hz f = 1kHz f = 10kHz IOUT = 50mA COUT = 2.2µF 3.1 3.2 3.3 3.4 3.5 Input Voltage VIN (V) Ripple Rejection RR(dB)

Rev.1.11 - 13 - 10) Line Transient Response R1111N301B IOUT=30mA tr=tf=5 µs COUT=Tantalum 1.0µF 2.8 2.9 3.0 3.1 3.2 3.3 3.4 Time t (µs) Output Voltage VOUT (V) Input Voltage VIN (V) 100 120 Input Voltage Output Voltage R1111N301B IOUT=30mA tr=tf=5 µs COUT=Tantalum 2.2µF 2.8 2.9 3.0 3.1 3.2 3.3 3.4 100 120 Output Voltage VOUT (V) Input Voltage VIN (V) Time t (µs) Input Voltage Output Voltage R1111N301B IOUT=30mA tr=tf=5 µs COUT=Tantalum 4.7µF 2.8 2.9 3.0 3.1 3.2 3.3 3.4 Output Voltage VOUT (V) Input Voltage VIN (V) 100 120 Time t (µs) Input Voltage Output Voltage

Rev.1.11 - 14 - 11) Load Transient Response R1111N301B VIN=4V CIN=Tantalum 1µF COUT=Tantalum 1.0µF 2.8 2.9 3.0 3.1 3.2 3.3 3.4 Time t (µs) Output Voltage VOUT (V) Output Current IOUT (mA) -150 -100 150 100 -50 Output Current Output Voltage R1111N301B VIN=4V CIN=Tantalum 1µF COUT=Tantalum 2.2µF 2.8 2.9 3.0 3.1 3.2 3.3 3.4 -150 -100 150 100 -50 Time t (µs) Output Voltage VOUT (V) Output Current IOUT (mA) Output Current Output Voltage R1111N301B VIN=4V CIN=Tantalum 1µF COUT=Tantalum 4.7µF 2.8 2.9 3.0 3.1 3.2 3.3 3.4 -150 -100 150 100 -50 Time t (µs) Output Voltage VOUT (V) Output Current IOUT (mA) Output Current Output Voltage

Rev.1.11 - 15 - I TECHNICAL NOTES When using these ICs, consider the following points: In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, be sure to use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance) of which is in the range described as follows: VOUT IOUT VIN VIN CE GND ESR R1111N301B S.A. Ceramic Capacitor 1µF Ceramic Capacitor Spectrum Analyzer Measuring Circuit for white noise;R1111N301B The relations between IOUT (Output Current) and ESR of Output Capacitor are shown below. The conditions when the white noise level is under 40µV(Avg.) are marked as the hatched area in the graph. (note: When the additional ceramic capacitors are connected to the Output Pin with Output capacitor for phase compensation, the operation might be unstable. Because of this, test these ICs with as same external components as ones to be used on the PCB.) <measuring conditions> (1) VIN=4V (2) Frequency band :10Hz to 1MHz (3) Temperature : 25°C R1111N301B R1111N301B 100.0 10.0 1.0 0.1 100 150 Output Current IOUT (mA) ESR (Ω) Ceramic 1.0µF 100.0 10.0 1.0 0.1 Output Current IOUT (mA) 100 150 ESR (Ω) Ceramic 2.2µF Make VDD and GND line sufficient. When the impedance of these is high, the noise might be picked up or not work correctly. Connect the capacitor with a capacitance of 1µF or more between VDD and GND as close as possible. Set external components, especially Output Capacitor, as close as possible to the ICs and make wiring shortest.

Rev.1.11 - 16 - I TYPICAL APPLICATION R1111NXX1A VOUT OUT IN VDD GND CE Cap. Cap. R1111Nxx1B VOUT OUT IN VDD GND CE Cap. Cap.