MIC5330

ULDO is a trademark of Micrel, Inc.

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

General Description

The MIC5330 is a tiny Dual Ultra Low Dropout

(ULDO™) linear regulator ideally suited for portable

electronics due to its high power supply ripple

rejection (PSRR) and ultra low output noise. The

MIC5330 integrates two high performance 300mA

ULDOs into a tiny 2mm x 2mm leadless MLF

®

package, which provides exceptional thermal package

characteristics.

The MIC5330 is a µCap design which enables

operation with very small ceramic output capacitors

for stability, thereby reducing required board space

and component cost. The combination of extremely

low drop out voltage, high power supply rejection and

exceptional thermal package characteristics makes it

ideal for powering RF/noise sensitive circuitry, cellular

phone camera modules, imaging sensors for digital

still cameras, PDAs, MP3 players and WebCam

applications.

The MIC5330 ULDO™ is available in fixed output

voltages in the tiny 8-pin 2mm x 2mm leadless MLF

®

package which occupies less than half the board area

of a single SOT-6 package. Additional voltage options

are available. For more information, contact Micrel

marketing department.

Data sheets and support documentation are found on

the Micrel web site:www.micrel.com.

Features

• 2.3V to 5.5V input voltage range

• Ultra low dropout voltage ULDO™ 75mV @ 300mA

• High PSRR - >70dB @ 1KHz

• ±2% initial output accuracy

• Excellent Load/Line transient response

• Fast start up time: 30µs

• 300mA output current per LDO

• Thermal shutdown protection

• Low quiescent current: 75µA per output

• Current limit protection

Applications

• Mobile phones

• PDAs

• GPS receivers

• Portable electronics

• Portable media players

• Digital still and video cameras

Typical Application

RF Power Supply Circuit

March 2011

M9999-032311-D