Datasheet > CM3102

CM3102

更新时间： 2024-09-25 21:53:59

品牌	Logo	应用领域
CALMIRCO		稳压器
页数	文件大小	规格书
9页	236K
描述
Micropower 1.2V/150mA CMOS LDO Regulator with Power Good

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CM3102 数据手册

CM3102

Micropower 1.2V/150mA CMOS LDO Regulator

with Power Good

Features

Product Description

•

1-5ms Power Good (PG) control signal

Regulated 1.2V output

150mA output current

Low quiescent operating current (90µA typical)

"Zero" disable mode current

Foldback current limiting protection

Thermal shutdown protection

Stable with low-ESR capacitors

SOT23-5 package

The CM3102 is a low quiescent current (90uA) regula-

tor that delivers up to 150mA of load current at a fixed

1.2V output. In addition, the CM3102 features a Power

Good output signal (PG) that goes open drain 1 to 5

ms after the output voltage has exceeded typically 93%

of its nominal level.

A dedicated control input (EN, Active High) has been

included for power-up sequencing flexibility. When this

input is taken low, the regulator is disabled. In this

state, the supply current will drop to near zero. An inter-

nal discharge MOSFET resistance (500Ω) will force the

output to ground whenever the device has been shut-

down.

"MIC5258" pinout

Lead-free version available

Applications

The CM3102 is fully protected, offering both overload

current limiting and high temperature thermal shut-

down.

•

Pentium^4 Motherboards

Processor Power-up Sequencing

Desktop, Notebook and Palmtop Computers

PC Cards

Available in a tiny SOT23 package, the device is ideal

for space critical applications.

Peripheral Adapter Cards

The CM3102 is available with optional lead-free finish-

ing.



Pentium 4 Motherboard

Application Circuit

CM3102-12Sx

Simplified Electrical Schematic

10Ω

1.2V/150mA

1.2V

OUT

VCCVID

VCC3

OUT

GND

.1µF*

.1µF

REF

1.2V

* Input capacitor optional.

Typical Application Circuit

47kΩ

2.5ms

CM3102-12Sx

X 0.93

REF

V_OUT

V_IN

OUT

GND

1µF*

GND

1µF

GND

* Input capacitor optional.

01/20/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112

Tel: 408.263.3214

Fax: 408.263.7846

www.calmicro.com

12 3 4 5 6 7...9

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