MCP1804T-5002IMB datasheet(1/38 Pages) MICROCHIP

Part #	MCP1804T-5002IMB

Description	150 mA, 28V LDO Regulator With Shutdown

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Manufacturer	MICROCHIP [Microchip Technology]

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DS22200B-page 1

Features

• 150 mA Output Current

• Low Drop Out Voltage, 260 mV typical @ 20 mA,

VR = 3.3V

• 50 µA Typical Quiescent Current

• 0.01 µA Typical Shutdown Current

• Input Operating Voltage Range: 2.0V to 28.0V

• Standard Output Voltage Options

(1.8V, 2.5V, 3.0V, 3.3V, 5.0V, 10.0V, 12.0V)

• Output Voltage Accuracy: ±2%

• Output voltages from 1.8V to 18.0V in 0.1V

increments are available upon request

• Stable with Ceramic output capacitors

• Current Limit Protection With Current Foldback

• Shutdown pin

• High PSRR: 50 dB typical @ 1 kHz

Applications

• Cordless Phones, Wireless Communications

• PDAs, Notebook and Netbook Computers

• Digital Cameras

• Microcontroller Power

• Car Audio and Navigation Systems

• Home Appliances

Related Literature

• AN765, “Using Microchip’s Micropower LDOs”,

• AN766, “Pin-Compatible CMOS Upgrades to

BiPolar LDOs”, DS00766, Microchip Technology

• AN792, “A Method to Determine How Much

Power a SOT23 Can Dissipate in an Application”,

Description

The MCP1804 is a family of CMOS low dropout (LDO)

voltage regulators that can deliver up to 150 mA of

current while consuming only 50 µA of quiescent

current (typical, 1.8V

≤ V

OUT ≤ 5.0V). The input

operating range is specified from 2.0V to 28.0V.

The MCP1804 is capable of delivering 100 mA with

only 1300 mV (typical) of input to output voltage

differential (VOUT = 3.3V). The output voltage tolerance

of the MCP1804 at +25°C is a maximum of ±2%. Line

regulation is ±0.15% typical at +25°C.

The LDO input and output is stable with 0.1 µF of input

and

output

capacitance.

Ceramic,

tantalum

or

aluminum electrolytic capacitors can all be used for

input and output. Overcurrent limit with current foldback

to 40 mA (typical) provides short-circuit protection.

A shutdown (SHDN) function allows the output to be

enabled or disabled.

When disabled, the MCP1804

draws only 0.01 µA of current (typical).

Package options include the SOT-23-5 (SOT-25), SOT-

89-3, SOT-89-5, and SOT-223-3.

Package Types

SOT-23-5

12

3

54

VOUT

VIN

NC

SHDN

GND

SOT-89-5

(Top View)

123

54

VOUT

SHDN

VIN

NC

GND

12

3

VOUT

VIN

GND

(Top View)

SOT-223

12

3

VOUT

VIN

VSS

(Top View)

SOT-89-3

150 mA, 28V LDO Regulator With Shutdown

MCP1804

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