He PJ2931 voltage regulator features a 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 PJ2931 the ideal regulator for standby power systems. Applications include memory standby circuits, CMOS and other low power processor power supplies as well as systems demanding as much as 100mA of output current. Designed originally for automotive applications, the PJ2931 and all regulated circuitry are protected from reverse battery installations or 2 battery jumps. During line transients, such as a 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 PJ2931 can not be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

FEATURES
● Very low quiescent current
● Output current up to 100mA
● Input-Output differential less than 0.6V
● Reverse battery protection
● Unregulated DC input can withstand +60V positive transients and -20V reverse battery
● Short circuit protection
● Internal thermal overload protection
● Available as adjustable with TTL compatible switch
● 100% electrical burn-in in thermal limit
● Available in plastic SOP-8, TO-92, SOT-89 package