MP20051

Low Noise, High PSRR, 1A

Linear Regulator

MP20051 Rev.1.11

www.MonolithicPower.com

1

12/26/2013

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP20051 is a low-dropout linear regulator

that supplies up to 1A current with a 140mV

dropout voltage. The externally-adjustable output

voltage has a range of 0.8V to 5V from an input

voltage of 2.5V to 5.5V.

An internal PMOS pass element allows for a low

110μA ground current, making the MP20051

suitable for battery-powered devices. Other

features include low-power shutdown, and short-

circuit and thermal protection. The MP20051 is

available in 3mm x 3mm 8-pin QFN and SOIC8E

packages.

FEATURES

• Up to 1A Output Current

• Low 140mV Dropout at 1A

• Low 110μA Ground Current

• Output Voltage Available from 0.8V to 5V

• 63dB PSRR @1kHz

• Stable with Ceramic Capacitor

• Excellent Load/Line Transient Response

• Current Limiting and Thermal Protection

• Available in 3mm x 3mm 8-pin QFN and

SOIC8E Packages

APPLICATIONS

• Notebook Computers

• Cordless Telephones

• Cellular Phones

• Wireless Communication Equipment

• Hand-Held Instruments

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

OUT

R1

V0.8 (1

)Volts

R2

=× +