L1183BG-XX-AG6-R

UNISONIC TECHNOLOGIES CO., LTD L1183B 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. 5 4 Preliminary CMOS IC 6 1 2 3 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 SOT-26 ORDERING INFORMATION Ordering Number Package L1183BG-xx-AG6-R SOT-26 Note: xx: Output Voltage, refer to Marking Information. Packing Tape Reel www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd 1 of 7 QW-R502-422.a L1183B MARKING INFORMATION PACKAGE VOLTAGE CODE 12 :1.2V 15 :1.5V 28 :2.8V 31 :3.1V 33 :3.3V Preliminary CMOS IC MARKING 65 Voltage Code 4 SOT-26 SXXBG 1 2 3 PIN CONFIGURATION PIN DESCRIPTION PIN NO 1 2 3 4 5 6 PIN NAME VIN GND EN PG ADJ VOUT 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.a L1183B BLOCK DIAGRAM IN Preliminary CMOS IC Thermal Shutdown Overcurrent Shutdown EN OUT + AMP + ADJ + VREF×90% Vref=1.2V GND VREF×110% PG UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R502-422.a L1183B ABSOLUTE MAXIMUM RATING PARAMETER Input Voltage Input, Output Voltage Output Current Power Dissipation Preliminary CMOS IC SYMBOL VIN IOUT PD RATINGS 8 GND - 0.3 ~ VIN + 0.3 PD / (VIN - VOUT) 400 UNIT V V mA mW Ambient 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 Dropout Voltage Output Current Current Limit Short Circuit Current Quiescent Current Ground Pin Current Line Regulation Load Regulation Over Temperature Shutdown Over Temperature Hysterisis VO Temperature Coefficient Power Supply Rejection Output Voltage Noise ADJ Input Bias Current ADJ Reference Voltage EN Input Threshold EN Input Bias Current Note: VIN(min)=VOUT+VD SYMBOL VIN VOUT VD IOUT ILIMIT ISC IQ IGND REGLINE REGLOAD OTS OTH TC PSRR eN IADJ VREF VEH VEL IEH IEL TEST CONDITIONS IOUT=1mA 1.2V≤VO(NOM) ≤2.0V IOUT=300mA VOUT=VONOM 2.0V