MP20046

Fast Transient Response, 2A

Low Dropout Voltage Regulator

MP20046 Rev. 1.1

www.MonolithicPower.com

1

10/13/2010

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© 2010 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP20046 is a low dropout linear regulator

supplying up to 2A current with 210mV dropout

voltage. The output voltage is preset internally

An internal PMOS pass element is used to

allow a low 75µA ground current at full load and

drops down to 1uA when the device is disabled,

making the MP20046 suitable for battery-power

devices. Integrated power good (PG) function

resets

microcomputer

and

microprocessor

systems in the event of an under voltage

condition. MP20046 are designed to have fast

response for larger load and line transient

response. Other features include current limit

and thermal protection.

The

MP20046

is

available

in

thermally

enhanced SOIC8 package and 10-pin QFN

package.

FEATURES

• Up to 2A Output Current

• Low 210mV Dropout at 2A

• Fast Transient Response

• Open Drain Power-Good(PG) Status Output

• High 70dB at100Hz PSRR

• Current Limit and Thermal Protection

• Available in SOIC8 with Exposed Pad and

10-pin QFN Packages

APPLICATIONS

• Telecom

• Servers

• DSP, FPGA Supplies

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP20046

IN

EN

PG

OUT

SENSE

PG

100k

47uF

47uF

1nF

ON OFF