概览

产品详情

在许多工业、计算机和监视器应用中,在系统操作期间“动态地”控制输出电压是非常重要的。LTC3649 具有借助施加至 Iset 引脚的低功率信号电压来控制输出的简单和可靠的方法。然而,该引脚不可浮置,电压电位必须始终存在。为了消除把该引脚浮置的可能性,采用了下拉保护电阻器 R1。


High Voltage Monolothic Synchronous Buck Regulator with Output Voltage Control

具输出电压控制功能的高电压单片式同步降压型稳压器


LTC3649 是一款高效率、60V、4A 同步单片式降压型稳压器。该稳压器具有可利用单个电阻器设置的输出电压、内部补偿功能,并可在宽 VOUT 范围内实现高效率。这款降压型稳压器在 3.1V 至 60V 的输入电压范围内工作,并提供了一个从 (VIN – 0.5V) 至地电位的可调轨至轨输出范围,同时可输送高达 4A 的输出电流。


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