L78L12AC数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The L78L series of three-terminal positive regulators employ internal current limitingand thermal shutdown, making them essentially indestructible. If adequate heat-sink isprovided, they can deliver up to 100 mA output current. They are intended as fixedvoltage regulators in a wide range of applications including local or on-card regulationfor elimination of noise and distribution problems associated with single-pointregulation. In addition, they can be used with power pass elements to make high-currentvoltage regulators. The L78L series used as Zener diode/resistor combinationreplacement, offers e improvement along with lower quiescent current and lowernoise.

特性 Features

• Output current up to 100 mA
• Output voltages of 3.3; 5; 6; 8; 9; 10; 12; 15; 18; 24 V thermal overloadprotection
• Short-circuit protection
• No external components are required
• Available in either ± 4% (A) or ± 8% (C) selection

简介

L78L12AC属于集成电路（IC）的线性+开关稳压器。由制造生产的L78L12AC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。