MCP1703A-1802E/DB Microchip

MCP1703A 250 mA, 16V, Low Quiescent Current LDO Regulator Features: Description: Reduced Ground Current During Dropout The MCP1703A is an improved version of the MCP1703 low dropout (LDO) voltage regulator that can Faster Startup Time deliver up to 250 mA of current while consuming only 2.0 A Typical Quiescent Current 2.0A of quiescent current (typical). The input Input Operating Voltage Range: 2.7V to16.0V operating range is specified from 2.7V to 16.0V, making 250 mA Output Current for Output Voltages 2.5V it an ideal choice for two to six primary cell battery- 200 mA Output Current for Output Voltages < 2.5V powered applications, 9V alkaline and one or two cell Low Dropout Voltage, 625 mV Typical 250 mA Li-Ion-powered applications. for V =2.8V R The MCP1703A is capable of delivering 250 mA with 0.4% Typical Output Voltage Tolerance only 625mV (typical) of input to output voltage = 2.8V). The output voltage tolerance differential (V Standard Output Voltage Options: OUT of the MCP1703A is typically 0.4% at +25C and 3% - 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, maximum over the operating junction temperature 5.0V range of -40C to +125C. Line regulation is 0.1% Output Voltage Range: 1.2V to 5.5V in 0.1V typical at +25C. Increments (50 mV increments available upon request) Output voltages available for the MCP1703A range from 1.2V to 5.5V. The LDO output is stable when using Stable with 1.0 F to 22 F Ceramic Output only 1 F of output capacitance. Ceramic, tantalum, or Capacitance aluminum electrolytic capacitors can all be used for Short-Circuit Protection input and output. Overcurrent limit and overtemperature Overtemperature Protection shutdown provide a robust solution for any application. Package options include the SOT-223-3, SOT-23A, Applications: 2x3 DFN-8, and SOT-89-3. Battery-Powered Devices Package Types Battery-Powered Alarm Circuits Smoke Detectors SOT-23A 2x3 DFN* CO Detectors 2 V IN V 1 8 V OUT IN Pagers and Cellular Phones 3 NC 2 7 NC EP Smart Battery Packs 9 NC 3 6 NC Low Quiescent Current Voltage Reference GND NC 4 5 PDAs 1 2 Digital Cameras GND V Microcontroller Power OUT Solar-Powered Instruments SOT-89 SOT-223 Consumer Products V IN Related Literature: AN765, Using Microchips Micropower LDOs, DS00765, Microchip Technology Inc., 2007 1 1 2 3 2 3 AN766, Pin-Compatible CMOS Upgrades to Bipolar LDOs, DS00766, V GND V GND V V IN OUT IN OUT Microchip Technology Inc., 2003 AN792, A Method to Determine How Much * Includes Exposed Thermal Pad (EP) see Table 3-1. Power a SOT23 Can Dissipate in an Application, DS00792, Microchip Technology Inc., 2001 2012 Microchip Technology Inc. DS25122A-page 1MCP1703A Functional Block Diagrams MCP1703A V V IN OUT Error Amplifier +V IN Voltage - Reference + Overcurrent Overtemperature GND Typical Application Circuits MCP1703A V OUT 3.3V V OUT I OUT C 50 mA OUT V IN 1F Ceramic V V IN IN + 9V C IN Battery 1F Ceramic GND DS25122A-page 2 2012 Microchip Technology Inc.