AMS2931

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




Application

· Battery Powered Systems
· Portable Consumer Equipment
· Cordless Telephones
· Portable (Notebook) Computers
· Portable Instrumentation
· Radio Control Systems
· Automotive Electronics




Specifications

Input Voltage
Operating Range 26V
Overvoltage Protection
AMS2931A-X, AMS2931C 60V
AMS2931-X 50V
Internal Power Dissipation (Note 4) Internally Limited
Maximum Junction Temperature +125°C
Storage Temperature-65°C to +150°C
Lead Temperature (Soldering 10 sec) 230°C
ESD 2000V




Description

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.