TDA8139集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TDA8139属于集成电路（IC）的线性+开关稳压器。由意法半导体集团制造生产的TDA8139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。

Features

■ Input voltage range: 7 V to 18 V

■ Output currents up to 750 mA

■ Fixed Precision output 1 voltage: 5.1 V ±2

■ Adjustable output 2 voltage: 2.8 to 16 V

■ Output 1 with reset function

■ Output 2 with disable function by TTL input

■ Short-circuit protection at both outputs

■ Thermal protection

■ Low dropout voltage

Description

The TDA8139 and the TDA8139/D are monolithic

dual positive voltage regulators designed to

provide a fixed precision output voltage of 5.1 V

and an adjustable voltage between 2.8 and 16 V

for currents up to 750 mA.

An internal reset circuit generates a reset pulse

when the voltage of OUTPUT1 drops below the

regulated voltage value.