UNISONIC TECHNOLOGIES CO., LTD L1183B CMOS IC 300mA CMOS LDO DESCRIPTION The UTC L1183B is a positive, linear regulator. One of the feature is the very low ground current typically as low as 30μA, and the dropout voltage is extremely low. For stable operation, the output capacitance value should be 2.2μF or more. The internal circuit includes thermal shutdown and current fold-back device to prevent device failure when the circuit is operated in bad conditions. The UTC L1183B is generally suitable for applications, such as instrumentation, portable electronics, wireless devices, cordless phones, PC peripherals, battery powered widgets. 6 5 4 1 2 3 SOT-26 FEATURES * Very Low Dropout Voltage * Guaranteed Output Current: 300mA * Quiescent Current: 30μA (TYP.) * Typical Accuracy Within 2% * Over-Temperature Shutdown * Current Limiting * Short Circuit Current Fold-Back * Power Good Detector (6 pin version only) * Power-Saving Shutdown Mode * Adjustable Output Voltages * Low Temperature Coefficient * RoHS-Compliant Product ORDERING INFORMATION Ordering Number Lead Free Halogen Free L1183BG-xx-AG6-R L1183BG-xx-AG6-R Note: xx: Output Voltage, refer to Marking Information. www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd Package Packing SOT-26 Tape Reel 1 of 7 QW-R502-422.B L1183B CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE SOT-26 12 :1.2V 15 :1.5V 28 :2.8V 31 :3.1V 33 :3.3V PIN CONFIGURATION PIN DESCRIPTION PIN NO 1 2 3 4 5 6 PIN NAME VIN GND EN PG ADJ VOUT MARKING 6 5 4 G: Halogen Free SXXBG 1 2 L: Lead Free Voltage Code 3 DESCRIPTION Input voltage pin Ground connection pin Enable pin Power-Good output Feedback output voltage for adjustable device LDO voltage regulator output pin UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-422.B L1183B CMOS IC BLOCK DIAGRAM IN Thermal Shutdown Overcurrent Shutdown EN OUT - VREF×110% + - PG AMP + ADJ + VREF×90% Vref=1.2V GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R502-422.B L1183B CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 8 V Input, Output Voltage GND - 0.3 ~ VIN + 0.3 V Output Current IOUT PD / (VIN - VOUT) mA Power Dissipation PD 400 mW Operating Temperature TOPR -40 ~ +85 °C Junction Temperature TJ -40 ~ +125 °C Notes: 1. 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. 2. Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device. THERMAL DATA PARAMETER Junction to Ambient Junction to Case SYMBOL θJA θJC RATINGS 140 280 UNIT °C/W ELECTRICAL CHARACTERISTICS (TA = 25°C, VIN=5V unless otherwise specified) PARAMETER Input Voltage Output Voltage SYMBOL VIN VOUT Dropout Voltage Output Current Current Limit Short Circuit Current Quiescent Current Ground Pin Current VD IOUT ILIMIT ISC IQ IGND Line Regulation REGLINE Load Regulation Over Temperature Shutdown Over Temperature Hysterisis VO Temperature Coefficient REGLOAD OTS OTH TC Power Supply Rejection Output Voltage Noise ADJ Input Bias Current ADJ Reference Voltage EN Input Threshold EN Input Bias Current PSRR eN IADJ VREF VEH VEL IEH IEL TEST CONDITIONS IOUT=1mA 1.2V≤VO(NOM) ≤2.0V IOUT=300mA VOUT=VONOM 2.0V<VO(NOM) ≤2.8V -2.0% 2.8V<VO(NOM)<3.8V VOUT>1.2V VOUT>1.2V VOUT<0.8V IOUT=0mA IOUT=1mA ~ 300mA VOUT < 2.0V IOUT=5mA VIN=VO+1 ~ VO+2 VOUT ≥ 2.0V IOUT=1mA ~ 300mA IOUT=100mA CO=2.2μF f=1kHz f=10kHz f=100kHz f=10Hz ~ 100kHz IO=10mA,CBYP=0μF CO=2.2μF VIN=2.7V ~ 7V VIN=2.7V ~ 7V VEN=VIN, VIN=2.7V ~ 7V VEN=0V, VIN=2.7V ~ 7V MIN Note -3 300 300 TYP MAX 7 3 1300 400 300 mV mA mA 300 mA 50 μA μA 0.15 % 0.02 0.1 % 0.2 1 % 150 °C 30 °C 30 ppm/°C 50 20 dB 15 450 150 30 35 30 1.176 2.0 0 UNIT V % μVrms 1 1.2 1.224 VIN 0.4 0.1 0.5 μA V V V μA μA Note: VIN(MIN)=VOUT+VD UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW-R502-422.B L1183B CMOS IC ELECTRICAL CHARACTERISTICS (Cont.) PARAMETER Shutdown Supply Current Shutdown Output Voltage Output Under Voltage Output Over Voltage PG Leakage Current PG Voltage Rating PG Voltage Low SYMBOL ISD VOUT,SD VUV VOV ILC VPG VOL TEST CONDITIONS VIN=5V, VO=0V, VEN<VEL IO=35μA,VEN<VEL 0 115 VPG=7V VO in regulation ISINK=0.4mA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX UNIT 0.5 1 μA 0.1 V 85 %VO(NOM) %VO(NOM) 1 μA 7 V 0.4 V 5 of 7 QW-R502-422.B L1183B CMOS IC ADVANCED APPLICATION VIN=3.3V 100K VIN VOUT PG 1µ 100µ 100 VO=1.2V ADJ EN 100µ GND 10K UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R502-422.B L1183B CMOS IC TYPICAL APPLICATION CIRCUIT 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 7 of 7 QW-R502-422.B