CMPWR150

更新时间： 2024-09-27 06:48:11

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器
页数	文件大小	规格书
15页	143K
描述
500mA/3.3V SmartOR Power Regulator

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数据手册

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CMPWR150 数据手册

500mA/3.3V SmartOR^TM

Power Regulator

CMPWR150

Features

Product Description

The 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_CCfalls 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.

•

Automatic detection of V_CCinput 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_CCor V_OUT

8-pin Power SOIC thermal package

RoHS compliant (lead-free) finishing

When V_CCis 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.

Applications

•

PCI adapter cards

Network Interface Cards (NICs)

Dual power systems

Systems with standby capabilities

USB powered devices such as printers,

scanners, MP3 players and Zip drives

See Application Note AP-211

All the necessary control circuitry needed to provide a

smooth and automatic transition between the

supplies has been incorporated. This allows V_CCto

be dynamically switched without loss of output

voltage.

•

The CMPWR150 is housed in an 8-pin SOIC

thermally enhanced package which is ideal for space

critical applications. The CMPWR150 is available

with RoHS compliant lead-free finishing.

June 2010 Rev. 3

Publication Order Number:

CMPWR150/D

12 3 4 5 6 7...15

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CMPWR150TOR	CALMIRCO	获取价格	500mA/3.3V SMARTOR Power Regulator