MCP1702| Datasheet

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MCP1702
250 mA Low Quiescent Current LDO Regulator
Features
2.0 uA Quiescent Current (typical) Input Operating Voltage Range: 2.7V to 13.2V 250 mA Output Current for Output Voltages 2.5V 200 mA Output Current for Output Voltages < 2.5V Low Dropout (LDO) voltage - 625 mV typical @ 250 mA (VOUT = 2.8V) 0.4% Typical Output Voltage Tolerance Standard Output Voltage Options: - 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V Output voltage range 1.2V to 5.5V in 0.1V Increments (50 mV increments available upon request) Stable with 1.0 uF to 22 uF Output Capacitor Short-Circuit Protection Overtemperature Protection

Description
The MCP1702 is a family of CMOS low dropout (LDO) voltage regulators that can deliver up to 250 mA of current while consuming only 2.0 uA of quiescent current (typical). The input operating range is specified from 2.7V to 13.2V, making it an ideal choice for two to six primary cell battery-powered applications, 9V alkaline and one or two cell Li-Ion-powered applications. The MCP1702 is capable of delivering 250 mA with only 625 mV (typical) of input to output voltage differential (VOUT = 2.8V). The output voltage tolerance of the MCP1702 is typically 0.4% at +25 C and 3% maximum over the operating junction temperature range of -40 C to +125 C. Line regulation is 0.1% typical at +25 C. Output voltages available for the MCP1702 range from 1.2V to 5.0V. The LDO output is stable when using only 1 uF of output capacitance. Ceramic, tantalum or aluminum electrolytic capacitors can all be used for input and output. Overcurrent limit and overtemperature shutdown provide a robust solution for any application. Pack
age options include the SOT-23A, SOT-89-3, and TO-92.

Applications
Battery-powered Devices Battery-powered Alarm Circuits Smoke Detectors CO2 Detectors Pagers and Cellular Phones Smart Battery Packs Low Quiescent Current Voltage Reference PDAs Digital Cameras Microcontroller Power Solar-Powered Instruments Consumer Products Battery Powered Data Loggers

Package Types
3-Pin SOT-23A
VIN 3 MCP1702 1 2 MCP1702 1 2 3

3-Pin SOT-89
VIN

GND VOUT

GND VIN VOUT

Related Literature
AN765, "Using Microchip's Micropower LDOs", DS00765, Microchip Technology Inc., 2002 AN766, "Pin-Compatible CMOS Upgrades to BiPolar LDOs", DS00766, Microchip Technology Inc., 2002 AN792, "A Method to Determine How Much Power a SOT-23 Can Dissipate in an Application", DS00792, Microchip Technology Inc., 2001

3-Pin TO-92 123

Bottom View GND VIN VOUT

2007 Microchip Technology Inc.

DS22008B-page 1