STMicroelectronics LDK130低压差稳压器

STMicroelectronics LDK130低压差稳压器以1.9V到5.5V的输入供电电压,提供最高300mA的电流,典型压差为100 mV。它通过输出上的陶瓷电容进行稳定。非常低的压降、很低的静态电流和低噪声的特性,使其非常适合于低功耗电池供电应用。使能逻辑功能将LDK130置于关断模式,实现低于1μA的总电流消耗。器件还包含短路恒定电流限制和热保护。

特性

  • Input voltage from 1.9 to 5.5V
  • Very low dropout voltage (100mV typ. at 100mA load)
  • Low quiescent current (max. 120μA, 1μA in OFF mode)
  • Very low noise
  • Output voltage tolerance: ± 2.0% @ 25°C
  • 300mA guaranteed output current
  • Wide range of fixed output voltages available on request from 0.8V to 3.5V with 100mV step
  • Adjustable version: from 0.8V to VIN-Vdrop
  • Logic-controlled electronic shutdown
  • Compatible with ceramic capacitor COUT = 1μF
  • Internal current and thermal limit
  • Available in SOT23-5L, SOT323-5L and DFN6 (1.2 x 1.3mm) packages
  • Temperature range: -40°C to 125°C

应用

  • Mobile phones
  • Personal digital assistants (PDAs)
  • Cordless phones and similar battery-powered systems
  • Digital still cameras

Block Diagram

框图 - STMicroelectronics LDK130低压差稳压器
发布日期: 2014-02-14 | 更新日期: 2022-03-11