应用与设计

LT6100 0A~33A 高压侧电流监视器具 12kHz 频率滚降

详情介绍

概览

产品详情

3.3V Step-Down Converter

LT3685 是一款可调频率 (200kHz 至 2.4MHz) 单片式降压型开关稳压器,可接受高达 38V 工作电压和最大值为 60V 的输入电压。当 VIN 高于 38V 典型值 (最小值为 36V) 时,内部过压保护电路将关断电源开关,因而使得器件能够安全地承受 60V 的瞬态电压。芯片上集成了一个高效率 0.25Ω 开关、一个升压肖特基二极管以及必需的振荡器、控制和逻辑电路。电流模式拓扑结构用于实现快速瞬态响应和上佳的环路稳定性。LT3685 的高工作频率允许使用小和低成本的电感器和陶瓷电容器,从而实现了低输出纹波,并尽可能地缩减了整体解决方案的外形尺寸。

Efficiency

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