LD39300中文资料Ultra low drop BICMOS voltage regulator数据手册ST规格书

描述 Description

The LD39300 is a fast ultra low drop linear regulator which operates from 2.5 V to 6 Vinput supply.
A wide range of output options are available. The low drop voltage, low noise, and lowquiescent current make it suitable for low voltage microprocessor and memoryapplications. The device is developed on a BiCMOS process which allows low quiescentcurrent operation independently of output load current.

特性 Features

• 3 A guaranteed output current
• Ultra low dropout voltage (200 mV typ. @ 3 A load, 40 mV typ. @ 600 mA load)
• Very low quiescent current (1.2 mA typ. @ 3 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
• Fixed and ADJ output voltages: 1.22 V, ADJ
• Temperature range: -40 to 125 °C
• Fast dynamic response to line and load changes
• Stable with ceramic capacitor
• Available in PPAK and DPAK

简介

LD39300属于集成电路（IC）的线性+开关稳压器。由制造生产的LD39300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。