LM9071集成电路（IC）的线性+开关稳压器规格书PDF中文资料

LM9071属于集成电路（IC）的线性+开关稳压器。由美国德州仪器公司制造生产的LM9071稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

1FEATURES

2• Automotive Application Reliability

• 3% Output Voltage Tolerance

• Insensitive to Radiated RFI

• Dropout Voltage Less than 800 mV with 250

mA Output Current

• Externally Programmed Reset Delay Interval

• Thermal Shutdown

• Short Circuit Protection

• Reverse Battery Protection

• Wide Operating Temperature Range −40°C to

+125°C

• TO-220 and TO-263 Power Surface Mount

Power Packages

• Pin for Pin Compatible with the LM2927, L4947

and TLE4260

DESCRIPTION

The LM9071 is a 5V, 250 mA low-dropout voltage

regulator. The regulator features an active low

delayed reset output flag which can be used to reset

a microprocessor system on turn-ON and in the event

that the regulator output falls out of regulation for any

reason. An external capacitor programs a delay time

interval before the reset output can return high.

Designed for automotive application the LM9071

contains a variety of protection features such as

reverse battery, over-voltage shutdown, thermal

shutdown, input transient protection and a wide

operating temperature range.

Design techniques have been employed to allow the

regulator to remain operational and not generate false

reset signals when subjected to high levels of RF

energy (300V/m from 2 MHz to 400 MHz).