应用与设计

用于 PoE 应用的多输出、高效率反激转换器

该转换器用于需要高效率和多输出的 2 类 PoE 应用。PMP8407.1 的输出为 3.3V (0.88A)。采用同步整流器的反激式转换器效率出色,尺寸小,适合 IP 电话等 PoE 应用。TPS23785B 包含基于 PoE 的器件和 PWM 控制器功能。
详情介绍
Efficiency achieved >90% 1.5% peak to peak cross regulation on 5V Isolated multiple output (3.3V at 0.88A; 5V at 0.35A; 10V at 0.11A) Uses TPS23785B high-power, high-efficiency PoE PD and DC-to-DC controller Small board size This circuit design is fully functional and tested and recommended for new design.