CMPWR130SR

更新时间： 2024-09-26 22:29:55

品牌	Logo	应用领域
CALMIRCO		稳压器驱动
页数	文件大小	规格书
6页	96K
描述
300mA SMARTOR Regulator with V Drive

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CMPWR130SR 数据手册

CALIFORNIA MICRO DEVICES

CMPWR130

300mA SmartOR^TMRegulator with V_AUXDrive

Features

Applications

• Automatic detection of V_CCinput supply

• Glitch-free output during supply transitions

• Built-in hysteresis during supply selection

• 300mA output maximum load current

• Overload current protection

• PCI adapter cards

• Network Interface Cards (NIC’s)

• Dual power systems

• Systems with standby capabilities

• Short circuit current protection

• Operates from either V_CCor V_OUT

• 8-pin SOIC package

Product Description

The SmartOR^TMCMPWR130 is a low dropout regulator

that delivers up to 300mA of load current at a fixed 3.3V

output. An internal threshold level (TYP 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.

When V_CCis restored to a level above the select thresh-

old, 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_CCto be dynamically

switched without loss of output voltage.

PIN DIAGRAM AND APPLICATION CIRCUIT

MGSF1PO2ELT1

–

Top View

3.3V

AUX

V_CC

DRIVE

V_OUT

CMPWR130

GND

OUT

3.3V

DRIVE

300mA

OUT

GND

–

OUT

GND

1µF

CMPWR130

8-Pin SOIC

4µF

Pin Diagram

GND

Typical Application Circuit

STANDARD PART ORDERING INFORMATION

Ordering Part Number

Package

Pins

Style

Tubes

Tape & Reel

Part Marking

SOIC

CMPWR130S/T

CMPWR130S/R

CMPWR130S

C1670101

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

3/5/2001

12 3 4 5 6

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