CMPWR150TO datasheet(1/8 Pages) CALMIRCO

部件名	CMPWR150TO

功能描述	500mA/3.3V SMARTOR Power Regulator

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制造商	CALMIRCO [California Micro Devices Corp]

网页	http://www.calmicro.com

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215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

1

CMPWR150

CALIFORNIA MICRO DEVICES

500mA / 3.3V SmartOR POWER REGULATOR

Features

Pin Diagrams

Automatic detection of V

CC input supply

Drive output logic to control external switch

Glitch-free output during supply transitions

500mA output maximum load current

Built-in hysteresis during supply selection

Controller operates from either V

CC or VOUT

8-pin SOIC Thermal or 5-pin TO-263 packages

Applications

PCI adapter cards

Network Interface Cards (NICs)

Dual power systems

Systems with standby capabilities

See Application Note AP-211

Product Description

California Micro Devices SmartORTM CMPWR150 is a

low dropout regulator that delivers up to 500mA of

load current at a fixed 3.3V output. An internal threshold

level (typically 4.1V) is used to prevent the regulator

from being operated below dropout voltage. The device

continuously monitors the input supply and will

automatically disable the regulator when V

CC falls below

the threshold level. When the regulator is disabled, the

control signal Drive (Active Low) is enabled, which

allows an external PMOS switch to power the load from

an auxiliary 3.3V supply.

When V

CC is restored to a level above the select threshold,

the control signal for the external PMOS switch is disabled

and the regulator is once again enabled.

All the necessary control circuitry needed to provide a

smooth and automatic transition between the supplies

has been incorporated. This allows V

CC to be dynamically

switched without loss of output voltage.

The CMPWR150 is available in either an 8-pin SOIC

thermally enhanced package, ideal for space critical

applications, or a 5-pin TO-263 package.

C0590899

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Typical Application Circuit

Simplified Electrical Schematic

SmartOR is a trademark of California Micro Devices Corp.

CMPWR150

CMPWR150TO

5-pin TO-263 Package

CMPWR150SA

8-pin SOIC Thermal Package

n.c.

GND

V

CC

GND

V

OUT

GND

Drive

GND

n.c.

V

CC

V

OUT

GND

Drive

Top View

类似零件编号 - CMPWR150TO

制造商	部件名	数据表	功能描述
ON Semiconductor	CMPWR150	148Kb / 15P	500mA/3.3V SmartOR Power Regulator June 2010 Rev. 3
ON Semiconductor	CMPWR150SF	148Kb / 15P	500mA/3.3V SmartOR Power Regulator June 2010 Rev. 3

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