UNISONIC TECHNOLOGIES CO., LTD LR5966 CMOS IC 5A LOW DROPOUT LINEAR REGULATOR DESCRIPTION The UTC LR5966 belonged to low quiescent current(60μA typ.), low dropout, linear regulators operating from 2.25V to 6V input and are guaranteed to deliver 5A. 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 LR5966 are designed and optimized for battery-powered systems to work with low noise. The UTC LR5966 consume less than 0.01μA in shutdown mode. Other features include ultra low dropout voltage, current limiting protection, thermal shutdown protection and high ripple rejection ratio. FEATURES * 5A Guaranteed Output Current * 0.01μA Shutdown Current * Low Temperature Coefficient * Current Limiting Protection * Thermal Shutdown Protection * Excellent Line/Load Transient ORDERING INFORMATION Ordering Number Lead Free Halogen Free LR5966L-xx-TN5-R LR5966G-xx-TN5-R LR5966L-xx-TN5-T LR5966G-xx-TN5-T Note: Pin Assignment: I:VIN O:VOUT G:GND S: SHDN www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package TO-252-5 TO-252-5 1 S S Pin Assignment 2 3 4 5 I G O A I G O A Packing Tape Reel Tube A: SET 1 of 5 QW-R102-046.a LR5966 CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE TO-252-5 33 :3.3V MARKING PIN CONFIGURATION 5 4 3 2 1 SET VOUT GND VIN SHDN PIN DESCRIPTION PIN NO PIN NAME 1 SHDN 2 3 4 VIN GND VOUT 5 SET DESCRIPTION Active-Low Shutdown Input. A logic low at SHDN reduces supply current to 0.01µA. Connect SHDN to VIN for normal operation. Power Input Voltage. Supply voltage can range from 2.25V to 6V. Ground Output Voltage When this pin is connected to ground, turns to fixed output voltage operation. When this pin is connected to an external resistor divider, turns to adjustable output voltage mode operation. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R102-046.a LR5966 BLOCK DIAGRAM + CMOS IC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 5 QW-R102-046.a LR5966 CMOS IC ABSOLUTE MAXIMUM RATING (TA=25°С) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VIN 7 V Power Dissipation PD 1250 mW Junction Temperature TJ +125 °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 SYMBOL θJA θJC RATINGS 64 4 UNIT °C/W °C/W ELECTRICAL CHARACTERISTICS (TA= 25°C, unless otherwise specified) VIN = VOUT + 1V or VIN =2.25V whichever is greater, CIN =1µF, COUT =2.2µF(Ceramic) PARAMETER SYMBOL TEST CONDITIONS MIN Input Voltage VIN 2.25 TA＝25°С , IOUT= 1mA ~5A -2 Output Voltage Accuracy VOUT TA＝0~85°С, IOUT= 1mA~5A -3 Maximum Output Current IOUT Short-Circuit Current Limit ILIMIT VOUT>1.2V Measured on SET, VIN=2.8V, 0.784 Reference Current VREF IOUT=10mA IOUT = 0mA Ground Pin Current IGND IOUT= 1mA to 5A 1.5V<=VOUT<=1.8V Dropout Voltage (Note) VD IOUT=5A 1.8V<VOUT<2.5V 2.5<=VOUT Line Regulation ΔVOUT ΔVIN × VOUT Load Regulation Output Voltage Noise Shutdown Supply Current Power Supply Rejection ΔVOUT eN IOFF PSRR TYP MAX 6 2 3 5 7.5 0.8 % A A 0.816 60 90 V µA 1800 1000 650 mV VIN=VOUT+VD~6V 0.08 0.18 %/V VIN=VOUT+1V, IOUT=10mA~5A f=10Hz to100kHz，COUT=2.2μF 0.25 30 0.01 60 45 1 % µVRMS µA SHDN =GND IOUT=100mA COUT=10μF f=100Hz f=1kHz 5 dB VIH 1.6 VIL 0.6 Thermal Shutdown Temperature TSHDN 160 Thermal Shutdown Hysteresis DTSHDN 50 Note: The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV. Shutdown Threshold UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw UNIT V V °С 4 of 5 QW-R102-046.a LR5966 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 5 of 5 QW-R102-046.a