LD39080中文资料Ultra low drop BICMOS voltage regulator数据手册ST规格书

描述 Description

The LD39080 is a fast, ultra low drop linear regulator which operates from 2.5 V to 6 V input supply.
A wide range of output options is available. The low drop voltage, low noise, and ultra low quiescent current make it suitable for low voltage microprocessors and memory applications. The device is developed on the BiCMOS process which allows the low quiescent current operation regardless of the output load current.

特性 Features

• 0.8 A guaranteed output current
• Ultra low-dropout voltage (150 mV typ. @ 0.8 A load, 20 mV typ. @150 mA load)
• Very low quiescent current (1 mA typ. @ 0.8 A load, 1 μA max.@ 25 °C in off mode)
• Logic-controlled electronic shutdown
• Current and thermal internal limit
• ±1.5% output voltage tolerance @ 25 °C
• ADJ output voltage: 1.22 V to 5.0 V
• Temperature range: -40 to 125 °C
• Fast dynamic response to line and load changes
• Stable with ceramic capacitor
• Available in PPAK

简介

LD39080属于集成电路（IC）的线性+开关稳压器。由制造生产的LD39080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。