MIC69151/153

1.5A LDO

Super ßeta PNP is a registered trademark of Micrel, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

July 2010

M9999-071210-D

General Description

The MIC69151/153 is the 1.5A output current member of

the MIC69xxx family of high current, low voltage

regulators, which support currents of 1A, 1.5A, 3A, and 5A.

The MIC69151/153 operates from a single low voltage

supply, yet offers high precision and ultra-low dropout of

500mV under worst case conditions.

The MIC69151/153 operates from an input voltage of

1.65V to 5.5V. It is designed to drive digital circuits

requiring low voltage at high currents (i.e. PLDs, DSP,

microcontroller, etc.). These regulators are available in

adjustable and fixed output voltages including 1.8V. The

adjustable version can support output voltages down to

0.5V.

The µCap design of the MIC69151/153 is optimized for

stability with low value low-ESR ceramic output capacitors.

Features of the MIC69151/153 include thermal shutdown

and current limit protection. Logic enable and error flag

pins are also available.

The MIC69151/153 is offered in a tiny 10-pin 3mm x 3mm

MLF

packages have an operating temperature range of

–40°C to +125°C.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

over temperature

• Adjustable output voltage down to 0.5V

• Stable with 10µF ceramic output capacitor

• Excellent line and load regulation specifications

• Logic controlled shutdown

• Thermal shutdown and current limit protection

• EPAD SOIC-8 package

• Available –40°C to +125°C junction temperature

Applications

• Point-of-load applications

• Industrial power

• Sensitive RF applications

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Typical Application

Fixed 1.8V Regulator w/Flag Error

Adjustable Regulator