LM2931AMX-5.0

Product Summary

The LM2931AMX-5.0 is a positive voltage regulator which 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 LM2931AMX-5.0 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 LM2931AMX-5.0 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 LM2931AMX-5.0 cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided. The LM2931AMX-5.0 is a fixed 5V output (±3.8% tolerance for A grade) which is available in the TO-92 plastic package.

Parametrics

LM2931AMX-5.0 absolute maximum ratings: (1)Input Voltage Operating Range: 26V; (2)Overvoltage Protection Input Voltage: 60V; (3)Internal Power Dissipation: Internally Limited; (4)Operating Ambient Temperature Range: -40℃ to +85℃; (5)Maximum Junction Temperature: 125℃; (6)Storage Temperature Range: -65℃ to +150℃; (7)Lead Temp. (Soldering, 10 seconds): 230℃; (8)ESD Tolerance: 2000V.

Features

LM2931AMX-5.0 features: (1)Very low quiescent current; (2)Output current in excess of 100 mA; (3)Input-output differential less than 0.6V; (4)Reverse battery protection; (5)60V load dump protection; (6)50V reverse transient protection; (7)Short circuit protection; (8)Internal thermal overload protection; (9)Mirror-image insertion protection; (10)Available in TO-220, TO-92, TO-263, or SO-8 packages; (11)Available as adjustable with TTL compatible switch.

Diagrams