FEATURES
x Low Dropout Voltage – 0.8V maximum at 100mA – 0.95V maximum at 800mA – 20% lower dropout voltage than “1117” LDO regulators x Guaranteed Low Dropout Voltage at Multiple Current Levels x 1% Trimmed 2.5V, 3.0V and 3.3V Outputs x Reduced Quiescent Current: 75µA Maximum x Short Circuit and Thermal Protection x Space Saving SOT-223 Surface Mount Package x “1117” Pin Compatible APPLICATIONS
x x x x x x High-efficiency linear power supplies Post regulator for switching supplies 5V to 3.3V linear regulators USB hubs Battery chargers Routers, ISDN/DSL modems Block Diagram 3 RCS 2 Input Out (Tab) IMP37 + – Current Limit Thermal Protection Error Amp – + + Ref – 1 GND 37_01.eps © 1999 IMP, Inc. 408-432-9100/ 1 IMP3 7 Pin Configuration SOT-223 3 IMP37 TAB IS VOUT 2 OUT TAB IS VOUT INPUT 3 IMP37 2 1 1 GND 37_04.eps 37_05.eps TO-263 INPUT OUT GND Front View Front View Pin Descriptions Pin Number 1 2 3 TAB Package Marking Code Name GND OUT INPUT TAB Function Ground Pin Output Voltage Input...
IMP Inc
