[原创] TI TPS546C23带PMBus35A DC-DC转换器解决方案

TI公司的TPS546C23是PMBus 1.3兼容的非绝缘集成了FET的DC/DC转换器,具有高频工作和输出电流35A,5-mm × 7-mmLQFN封装.两个TPS546C23并联可提供70A电流.输入电压4.5V-18V,输出电压0.35V-5.5V,主要用在测试和仪表,以太网交换机,光交换机,路由器和基站,服务器,企业存储SSD和高密度电源解决方案.本文介绍了TPS546C23主要特性,功能框图,多种应用电路,以及两相70A带PMBus评估模块TPS546C23EVM2-746主要特性和电性能指标,电路图,材料清单和PCB设计图.

The TPS546C23 devices are PMBus 1.3 Compliant, non-isolated DC-DC converters with integrated FETs, capable of high-frequency operation and 35-A current output from a 5-mm × 7-mm package. Two TPS546C23 devices can be paralleled together to provide up to 70-A load. Current sensing is realized by sampling a small portion of the power stage current and independent on the device temperature. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS functions through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current, and internal die temperature. Response to fault conditions can be set to either restart, latch-off or ignore depending on system requirements.

TPS546C23主要特性:

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