MIC5301

Single, 150mA µCap ULDO™

ULDO is a trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

November 2006

M9999-111506

General Description

The MIC5301 is a high performance, single output

ultra low LDO (ULDO™) regulator, offering low total

output noise. The MIC5301 is capable of sourcing

150mA output current and offers high PSRR and low

output noise, making it an ideal solution for RF

applications.

For battery operated applications, the MIC5301 offers

2% accuracy, extremely low dropout voltage (40mV @

150mA), and low ground current (typically 85µA total).

The MIC5301 can also be put into a zero-off-mode

current state, drawing no current when disabled.

The MIC5301 is available in the 1.6mm x 1.6mm

MLF

a 36% reduction in board area compared to SC-70

and 2mm x 2mm MLF

The MIC5301 has an operating junction temperature

range of –40°C to +125°C and is available in fixed and

adjustable output voltages in lead-free (RoHS

compliant) MLF

Data sheets and support documentation can be found

on Micrel’s web site at www.micrel.com.

Features

• Ultra low dropout voltage – 40mV @ 150mA

• Input voltage range: 2.3V to 5.5V

• 150mA guaranteed output current

• Stable with ceramic output capacitors

• Ultra low output noise – 30µVrms

• Low quiescent current – 85µA total

• High PSRR – up to 75dB@1kHz

• 35µs turn-on time

• High output accuracy

–

± 2% initial accuracy

–

± 3% over temperature

• Thermal shutdown and current limit protection

package

• Thin SOT-23-5 package

Applications

• Mobile phones

• PDAs

• GPS receivers

• Portable electronics

• Digital still and video cameras

Typical Application

VOUT

VIN

EN

GND

1µF

1µF

MIC5301-x.xYML

BYP

0.01µF

Portable Application