PB137集成电路（IC）的线性+开关稳压器规格书PDF中文资料

PB137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PB137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。

描述 Description

The PB137 is a positive voltage regulator able to provide 1.5 A, at VO = 13.7 V and is intended as a charger for lead acid battery. The main feature is a reverse leakage current (Max 10 µA at TJ = 0 to 40 °C VI = floating and VO = 13.7 V). It is available in TO-220 and it employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat-sinking is provided, they can deliver over 1 A output current.

特性 Features

■ Reverse leakage current less than 10 µA

■ Three terminal fixed version (13.7 V) output current in excess of 1.5 A

■ Available in ± 1 (AC) selection at 25 °C

■ Typical dropout voltage 2 V

■ Temperature range 0 to 150 °C