应用与设计

LT3741 20V 稳压输出具 5A 电流限制

详情介绍

概览

产品详情

Dual LDO Output (1.8V, 1.5V) from 2.5V Supply Rail

LTC®3035 是一款微功率、VLDOTM (非常低压差) 线性稳压器,其可依靠低至 1.7V 的输入电压运作。该器件能够提供 300mA 的输出电流和一个仅 45mV 的典型压差电压。为可在低输入电压条件下工作,LTC3035 内置了一个充电泵发生器,其负责为内部 LDO 电路提供必要的偏置电压。输出电流直接来自输入电源以实现高效调节。充电泵偏置发生器的运作仅需一个 0.1μF 跨接电容器和一个 1μF 旁路电容器。低的 0.4V 内部基准电压允许将 LTC3035 的输出电压设置至比 LDO 中常用的输出电压低得多。输出电压采用两个纤巧型 SMD 电阻器来设置。LTC3035 的低静态电流使其成为电池供电型系统的理想选择。


工具及仿真模型

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice