MCP1801 판매점 - Low Quiescent Current LDO

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MCP1801

150 mA, High PSRR, Low Quiescent Current LDO

Features

• 150 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, 1.2V, 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 MCP1801 is a family of CMOS low dropout (LDO)

voltage regulators that can deliver up to 150 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 MCP1801 is capable of delivering 100 mA with

only 200 mV (typical) of input to output voltage differen-

tial (VOUT = 3.3V). The output voltage tolerance of the

MCP1801 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

output capacitance. Ceramic, tantalum or aluminum

electrolytic 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 MCP1801 draws only 0.01 µA of current

(typical).

The MCP1801 is available in a SOT-23-5 package.

Package Types

SOT-23-5

VOUT

123

VIN VSS SHDN

DS22051A-page 1

MCP1801 반도체 회로 부품 판매점

Low Quiescent Current LDO

국내 전력반도체 판매점

일반적인 전자부품 판매점

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