LT8611 –3.3V 负输出转换器具 1A 输出电流限制
详情介绍
概览
产品详情
LT8495 是一款具有上电复位和看门狗定时器的可调频率 (250kHz 至 1.5MHz) 单片式开关稳压器。静态电流在器件操作时可小于 9μA，并在 SWEN、WDE 和 RSTIN 引脚处于低电平时为 ~0.3μA。该器件可配置为一个 SEPIC、升压或反激式转换器，其低纹波突发模式操作能在低输出电流条件下维持高效率，并保持输出纹波低于 10mV。双电源引脚 (VIN 和 BIAS) 使得器件能够自动地采用最有效的电源来运作。对于 SEPIC 拓扑，输入电源电压可高达 60V，而对于升压和反激式拓扑则高达 32V (具有至高达 60V 的穿越能力)。在启动之后，由于器件能够从其输出 (BIAS) 吸收电流 (即使当 VIN 电压降至低于 2.5V 时也不例外)，因而延长了电池寿命。
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.
