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MCP1802 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP1802 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 24 page  © 2007 Microchip Technology Inc. DS22053A-page 1 MCP1802 Features • 300 mA Maximum Output Current • Low Drop Out Voltage, 200 mV typical @ 100 mA • 25 µA Typical Quiescent Current • 0.01 µA Typical Shutdown Current • Input Operating Voltage Range: 2.0V to10.0V • Standard Output Voltage Options: - (0.9V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V, 6.0V) • Output voltage accuracy: -±2% (VR > 1.5V), ±30 mV (VR ≤ 1.5V) • Stable with Ceramic output capacitors • Current Limit Protection • Shutdown pin • High PSRR: 70 dB typical @ 10 kHz Applications • Battery-powered Devices • Battery-powered Alarm Circuits • Smoke Detectors •CO2 Detectors • Pagers and Cellular Phones • Wireless Communications Equipment • Smart Battery Packs • Low Quiescent Current Voltage Reference •PDAs • Digital Cameras • Microcontroller Power • Solar-Powered Instruments • Consumer Products • Battery Powered Data Loggers 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 SOT23 Can Dissipate in an Application”, DS00792, Microchip Technology Inc., 2001 Description The MCP1802 is a family of CMOS low dropout (LDO) voltage regulators that can deliver up to 300 mA of current while consuming only 25 µA of quiescent current (typical). The input operating range is specified from 2.0V to 10.0V, making it an ideal choice for two to six primary cell battery-powered applications, 9V alka- line and one or two cell Li-Ion-powered applications. The MCP1802 is capable of delivering 100 mA with only 200 mV (typical) of input to output voltage differen- tial (VOUT = 3.0V). The output voltage tolerance of the MCP1802 at +25°C is typically ±0.4% with a maximum of ±2%. Line regulation is ±0.01% typical at +25°C. The LDO output is stable with a minimum of 1 µF of out- put capacitance. Ceramic, tantalum or aluminum elec- trolytic capacitors can all be used for input and output. Overcurrent limit with current foldback provides short- circuit protection. A shutdown (SHDN) function allows the output to be enabled or disabled. When disabled, the MCP1802 draws only 0.01 µA of current (typical). The MCP1802 is available in a SOT-23-5 package. Package Types SOT-23-5 123 54 VOUT NC VIN SHDN VSS 300 mA, High PSRR, Low Quiescent Current LDO |
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