The LM2931-N positive 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 LM2931-N 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 LM2931-N 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 LM2931-N cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

The LM2931-N family includes a fixed 5V output (±3.8% tolerance for A grade) or an adjustable output with ON/OFF pin. Both versions are available in a TO-220 power package, DDPAK/TO-263 surface mount package, and an 8-lead SOIC package. The fixed output version is also available in the TO-92 plastic package.

德州仪器lm2931am 5.0 / nopb
the lm2931 N正电压调节器的特点是非常低的静态电流小于1mA的金供10mA时的负荷。这独特的特性和极低的输入输出微分required for proper法规（0.2V的输出电流为10mA of）make the lm2931 N理想的稳压器，备用电源系统。应用的CMOS待机电路，包括存储器，低功耗处理器功率supplies and other as well as系统要求高的就像100ma输出电流。
设计的本来的汽车应用，the lm2931 N和所有调节电路are protected from反向电池或电池jumps 2设施。在transients线，such as a load转储（额定电流），当输入电压调节器可以随时地to the超过指定的最大操作电压，调节器会自动shut down to protect both and the load内部电路。the lm2931 N cannot be harmed by临时镜像插入。熟悉的调节功能如短路和热过载保护are also provided。
the lm2931 N家庭包括固定5V输出（±3.8 %宽容for a级）或可调输出以及开/关松。both are available in a版本至220功率封装，ddpak / to 263表面贴装包，和一个8引脚SOIC封装。固定输出版本is also available in the TO - 92塑料包。