UNISONIC TECHNOLOGIES CO., LTD L11830 CMOS IC 3A LOW DROPOUT LINEAR REGULATOR DESCRIPTION The UTC L11830 belonged to low quiescent current, low dropout, linear regulators operated from 2.25V to 6V input and are guaranteed to deliver 3A. Wide range of preset output voltage options are available. Built-in low on-resistance transistor provides low dropout voltage and large output current. The UTC L11830 is designed and optimized for battery-powered systems to work with low noise. The UTC L11830 consumes less than 2μA in shutdown mode. Other features include ultra low dropout voltage, current limiting protection, thermal shutdown protection and high ripple rejection ratio. FEATURES * 3A Guaranteed Output Current * low quiescent current: 60μA (typ.) * 2μA Shutdown Current * Short Circuit Current Fold-back * Low Temperature Coefficient * Current Limiting Protection * Thermal Shutdown Protection * Excellent Line/Load Transient * SENSE Option Improves Load Regulation ORDERING INFORMATION Ordering Number Lead Free Halogen Free L11830L-xx-TQ2-D-R L11830G-xx-TQ2-D-R L11830L-xx-TQ2-D-T L11830G-xx-TQ2-D-T L11830L-xx-TQ3-A-R L11830G-xx-TQ3-A-R L11830L-xx-TQ3-A-T L11830G-xx-TQ3-A-T L11830L-xx-TQ5-R L11830G-xx-TQ5-R L11830L-xx-TQ5-T L11830G-xx-TQ5-T Note: Pin Assignment: I:VIN O:VOUT G:GND S: SHDN www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package TO-263 TO-263 TO-263 TO-263 TO-263-5 TO-263-5 Pin Assignment 1 2 3 4 5 I G O I G O G O I G O I I S G A O I S G A O Packing Tape Reel Tube Tape Reel Tube Tape Reel Tube A: SENSE 1 of 6 QW-R502-536.a L11830 CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE TO-263 15 18 25 33 :1.5V :1.8V :2.5V :3.3V TO-263-5 15 18 25 33 :1.5V :1.8V :2.5V :3.3V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MARKING 2 of 6 QW-R502-536.a L11830 CMOS IC PIN CONFIGURATION PIN DESCRIPTION PIN NAME VIN GND SHDN VOUT SENSE DESCRIPTION Power Input Voltage. Supply voltage can range from 2.25V to 6V. Bypass with a 0.1µF capacitor to GND. Ground Active-Low Shutdown Input. A logic low at SHDN reduces supply current to 0.01µA. Connect SHDN to VIN for normal operation. Output Voltage Remote sense pin. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R502-536.a L11830 CMOS IC BLOCK DIAGRAM VIN ON OFF Thermal Sensor Current Limit SHDN SHDN VOUT VREF SENSE + ERR AMP - GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R502-536.a L11830 CMOS IC ABSOLUTE MAXIMUM RATING (Ta=25°С) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VIN 7 V Power Dissipation TO-263/TO-263-5 PD Internally limited mW Junction Temperature TJ +150 °С Operation Temperature TOPR -40 ~ +125 °С Storage Temperature TSTG -65 ~ +150 °С 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. THERMAL DATA PARAMETER Junction to Ambient Junction to Case TO-263/TO-263-5 TO-263/TO-263-5 SYMBOL θJA θJC RATINGS 64 4 UNIT °C/W °C/W ELECTRICAL CHARACTERISTICS (VIN = VOUT + 1V whichever is greater, CIN =0.1µF, COUT =2.2µF(Ceramic), Ta= 25°C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input Voltage VIN Note1 6 V Ta＝25°С , IOUT= 1mA ~3A -2 2 % Output Voltage Accuracy VOUT Ta＝0~85°С, IOUT= 1mA~3A -3 3 Maximum Output Current IOUT 3 A Short-Circuit Current Limit ILIMIT VOUT>1.2V 4.5 A Short-Circuit Current ISC VOUT<0.4V 1 A IOUT = 0mA 60 350 µA Ground Pin Current IGND 60 IOUT= 1mA to 3A 1.5V<=VOUT<=1.8V 1000 Dropout Voltage (Note 2 ) VD IOUT=3A mV 1.8V<VOUT<2.5V 700 2.5<=VOUT 450 Line Regulation ΔVOUT ΔVIN × VOUT Load Regulation Output Voltage Noise Shutdown Supply Current Power Supply Rejection Shutdown Threshold ΔVOUT eN IOFF PSRR VIN=VOUT+VD~6V 0.08 0.18 %/V VIN=VOUT+1V, IOUT=10mA~3A f=10Hz to100kHz，COUT=2.2μF 0.25 30 1 % µVRMS 2 10 µA SHDN =GND IOUT=100mA COUT=10μF VIH VIL f=100Hz f=1kHz 60 45 dB 2 0.4 Thermal Shutdown TSHDN 160 Temperature Thermal Shutdown Hysteresis DTSHDN 50 Note: 1. VIN(MIN)= VOUT+ VDROPOUT 2. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) × 98% UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw V °С 5 of 6 QW-R502-536.a L11830 CMOS IC TYPICAL APPLICATION CIRCUIT For To-263 For TO-263-5 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R502-536.a