Advanced
Monolithic
Systems
AMS2931
100mA LOW DROPOUT VOLTAGE REGULATOR
FEATURES
APPLICATIONS
· 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
· Battery Powered Systems
· Portable Consumer Equipment
· Cordless Telephones
· Portable (Notebook) Computers
· Portable Instrumentation
· Radio Control Systems
· Internal Thermal Overload Protection
· 60V Load Dump Protection
· Automotive Electronics
· -50V Reverse Transient Protection
· Mirror Image Insertion Protection
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
8 LEAD SOIC TO-220
AMS2931AN-X AMS2931AS-X AMS2931AT-X AMS2931AM-X
AMS2931T-X AMS2931M-X
OPER. TEMP
RANGE
TO-92
TO-263
VOLTAGE
FIXED*
IND
IND
IND
AMS2931N-X
AMS2931S-X
AMS2931CS
ADJ.
X = 5V
*For additional available fixed voltages contact factory
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
