MIC5268 データシートの表示（PDF） - Micrel

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MIC5268

150mA µCap CMOS LDO Regulator w/Power Good

Micrel 

MIC5268

150mA µCap CMOS LDO Regulator

w/Power Good

General Description

The MIC5268 is an efficient, precise CMOS voltage

regulator with power good output. The MIC5268 offers

better than 3% initial accuracy, and constant ground

current (typically 100µA) over load.

The MIC5268 also works with low-ESR ceramic

capacitors, reducing the amount of board space necessary

for power applications, critical in hand-held wireless

devices.

Key features include current limit, thermal shutdown, a

push-pull output for faster transient response, and an

active clamp to speed up device turnoff. Available in the

IttyBitty™ SOT-23-5 package, the MIC5268 is a fixed 1.2V

regulator.

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

Features

• Power Good indicator

• Load independent, ultra-low ground current: 100µA

• 150mA output current

• Current limiting

• Thermal shutdown

• Tight load and line regulation

• “Zero” off-mode current

• Stability with low-ESR capacitors

• Fast transient response

• TTL-Logic-controlled enable input

Applications

• Processor power-up sequencing

• Laptop, notebook, and palmtop computers

• PCMCIA VCC and VPP regulation/switching

Ordering Information

Part Number

Marking

Standard

Pb-Free

Standard Pb-Free

MIC5268-1.2BM5 MIC5268-1.2YM5

L512

L512

Note:

1. Other Voltage available. Contact Micrel Marketing for details.

Voltage

1.2V

Junction

Temp. Range(1)

–40° to +125°C

Package

5-Pin SOT-23

Typical Application

47k

VIN

MIC5268-x.xBM5/YM5

1

5

2

Enable

3

4

Shutdown

EN

VOUT

C OUT

PG

1.2V Regulator with Power Good

IttyBitty is a trademark of Micrel, 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

September 2006

1

M9999-91506

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