UNISONIC TECHNOLOGIES CO., LTD L1183A CMOS IC 300mA CMOS LDO DESCRIPTION The UTC L1183A is a COMS positive linear regulator. One of it’s feature is the very low quiescent current typical as low as 30μA and its dropout voltage is extremely low with 300mA output current. The internal circuit includes current fold-back to prevent device failure when the circuit is operated in the bad conditions. In application, the UTC L1183A needs a low noise, regulated supply. For stable operation, the output capacitance value should be 2.2μF or more. The UTC L1183A is an ideal for battery applications, such as instrumentations, portable electronics, wireless devices, cordless phones, PC peripherals, and battery powered widgets. FEATURES * Accurate To Within 1.5% * Quiescent Current: 30μA * With Current Limiting * Internal Short Circuit Current Fold-Back * Has Power-Saving Shutdown Mode * Very Low Temperature Coefficient ORDERING INFORMATION Ordering Number L1183AG-xx-AF5-R L1183AG-xx-AG6-R Note: xx: Output Voltage, refer to Marking Information. L1183AG-xx-AF5-R Package SOT-25 SOT-26 Packing Tape Reel Tape Reel (1) Packing Type (1) R: Tape Reel (2) Package Type (2) AF5: SOT-25, AG6: SOT-26 (3) Output Voltage Code (3) xx: Refer to Marking Information (4) Green Package (4) G: Halogen Free and Lead Free www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-315.M L1183A CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE MARKING 15 :1.5V SOT-25 18:1.8V 4 5 12:1.2V Voltage Code 25:2.5V SXXAG 1 28 :2.8V 30: 3.0V 2 6 5 3 4 31 :3.1V 33 :3.3V SOT-26 Voltage Code 50:5.0V SXXAG 1 2 3 PIN CONFIGURATION PIN DESCRIPTION PACKAGE SOT-25 SOT-26 PIN NO. PIN NAME 1 VIN 2 GND 3 EN 4 NC 5 VOUT 1 2 3 4 5 6 SENSE GND BYP EN VDD VOUT DESCRIPTION Input for voltage input. A 1µF or greater capacitor should be placed in this pin. Ground. Enable pin. Pulling his pin low, can shut down the PMOS pass transistor, and the current consuming can be set less than 1µA. Output voltage pin. The capacitor which connected between this pin and GND should be decoupled with a 2.2µF or a greater value low ESR ceramic capacitor. Remote Sense. Ground. Bypass capacitor for noise reduction. Enable Input. Supply Input. Output Voltage. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-315.M L1183A CMOS IC BLOCK DIAGRAM VIN Overcurrent Shutdown EN - NC AMP + VOUT R1 VREF=1.215V R2 GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R502-315.M L1183A CMOS IC ABSOLUTE MAXIMUM RATING (Unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN -0.3~ +6.5 V Input Voltage (EN,BYP) -0.3~ +6.5 V Output Voltage VOUT -0.3~ VIN+0.3 V Output Current IOUT 300 mA Power Dissipation PD 400 mW 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. RECOMMENDED OPERATING CONDITIONS PARAMETER Ambient Temperature Junction Temperature Storage Temperature SYMBOL TA TJ TSTG RATINGS - 40 ~ +85 150 -65 ~ +150 UNIT °C °C °C PARAMETER SYMBOL Junction to Ambient θJA Junction to Case (Note) θJC Note: θJC on center of molding compound if IC has on tab. RATINGS 280 140 UNIT °C/W °C/W THERMAL DATA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R502-315.M L1183A CMOS IC ELECTRICAL CHARACTERISTICS (TA = 25°C, Unless otherwise specified) PARAMETER Input Voltage Line Regulation Load Regulation SYMBOL VIN ∆VOUT VOUT ∆VOUT VOUT Output Voltage Accuracy Quiescent Current Dropout Voltage Power Supply Ripple Rejection Output Voltage Noise Output Current Current Limit Short Circuit Current (Note2) Ground Pin Current Temperature Coefficient of Output Voltage EN Input Threshold EN Input Bias Current IQ VD PSRR eN IOUT ILIMIT ISC IGND TEST CONDITIONS VIN=VOUT+1~VOUT+2 IOUT=1mA 1.2V≤VOUT≤1.4V 1.4V<VOUT≤2.0V 2.0V<VOUT<4.0V VIN=VOUT+1~VOUT+1.5V VOUT=5.0V IOUT=1mA IOUT=1mA~300mA IOUT=1mA IOUT=300mA IOUT=0mA 1.2V≤VO(NOM)≤2.0V IOUT=300mA 2.4V<VO(NOM)≤2.8V VOUT=VO(NOM)-2.0% 2.8V<VO(NOM)≤5.0V f=100Hz IOUT=100mA f=1kHz COUT=2.2µF f=10kHz IOUT=10mA,COUT=2.2µF,f=10Hz~100kHz VOUT>1.2V VOUT>1.2V VOUT<0.8V IOUT=1mA ~300mA MIN TYP Note1 -0.2 -0.15 -0.1 0.02 UNIT V % % % -0.1 0.02 0.1 % -2 0.2 2 % 1.5 2.5 50 1300 400 300 % % µA -1.5 -2.5 30 60 50 20 30 300 300 TCVO VEH VEL IEH IEL ISD VSD MAX 6.5 0.2 0.15 0.1 450 150 35 300 30 VIN=2.7V~6.5V VIN=2.7V~6.5V VEN=VIN, VIN=2.7V~6.5V VEN=0V, VIN=2.7V~6.5V VIN=6.5V, VO=0V, VEN<VEL IO=0.4mA, VEN<VEL 2.0 0 mV dB dB dB µVRMS mA mA mA µA ppm/°C VIN 0.4 2.0 0.5 1 0.4 V V µA µA µA V Shutdown Supply Current 0.5 Shutdown Output Voltage 0 Notes: 1. VIN(MIN) =VOUT +VD 2. To prevent the short circuit current protection feature from being prematurely activated, the input voltage must be applied before a current source load is applied. Notes: 1. VIN(MIN) =VOUT +VD. 2. To prevent the short circuit current protection feature from being prematurely activated, the input voltage must be applied before a current source load is applied. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-315.M L1183A CMOS IC TYPICAL APPLICATION CIRCUIT INPUT VIN L1183A NC GND C1 1µF VOUT OUTPUT EN C2 2.2µF 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. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R502-315.M