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AMS2931

100mA LOW DROPOUT VOLTAGE REGULATOR

Advanced Monolithic Systems Inc 

Advanced

Monolithic

Systems

AMS2931

100mA LOW DROPOUT VOLTAGE REGULATOR

FEATURES

• 5V and Adjustable Versions Available*

• Output Current in excess of 100mA

• Very Low Quiescent Current

• Reverse Battery Protection

• Input-output Differential less than 0.6V

• Short Circuit protection

• Internal Thermal Overload Protection

• 60V Load Dump Protection

• -50V Reverse Transient Protection

• Mirror Image Insertion Protection

APPLICATIONS

• Battery Powered Systems

• Portable Consumer Equipment

• Cordless Telephones

• Portable (Notebook) Computers

• Portable Instrumentation

• Radio Control Systems

• Automotive Electronics

GENERAL DESCRIPTION

The AMS2931 series consists of positive fixed and adjustable voltage regulators ideally suited for use in battery-powered

systems. These devices feature very low quiescent current of 1mA or less when supplying 10mA loads. This unique

characteristic and the extremely low input -output differential required for proper regulation (0.2V for output currents of

10mA) make the AMS2931 ideal to use for standby power systems.

Originally designed for automotive applications, the AMS2931 and all regulated circuitry are protected from input fault

conditions caused by reverse battery installation or two battery jump starts. During line transients, such as load dump (60V)

when the input voltage to the regulator can momentarily exceed the specified maximum operating voltage, the regulator will

automatically shut down to protect both internal circuits and the load. The AMS2931 series also includes internal current

limiting, thermal shutdown, and is able to withstand temporary power-up with mirror-image insertion.

The AMS2931 is offered in the 3-pin TO-92 package, 8-pin plastic SOIC, TO-220 and TO-263 packages.

ORDERING INFORMATION

OUTPUT

PACKAGE TYPE

VOLTAGE

TO-92

8 LEAD SOIC

TO-220

FIXED*

AMS2931AN-X AMS2931AS-X AMS2931AT-X

AMS2931N-X AMS2931S-X AMS2931T-X

ADJ.

AMS2931CS

X = 5V

*For additional available fixed voltages contact factory

TO-263

AMS2931AM-X

AMS2931M-X

OPER. TEMP

RANGE

IND

IND

IND

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

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