[原创] TI TPS544x25PMBus 1.2兼容20A/30A电源转换方案

TI公司的TPS544x25系列是PMBus 1.2兼容的非隔离的DC/DC转换器,集成了高频率工作的FET,输出电流20A或30A,输入电压4.5V-18V,输出电压0.5V-5.5V,主要用在测量和仪表,以太网交换,光交换,路由器,基站和服务器,企业存储SSD和高效率电源解决方案.本文介绍了TPS544x25系列产品主要特性,功能框图,典型应用电路,以及评估模块PWR681EVM主要特性,电路图,材料清单和PCB设计文件.

The TPS544x25 devices are PMBus 1.2 Compliant, non-isolated DC-DC converters with integrated FETs, capable of high-frequency operation and 20-A or 30-A current output from a 5 mm × 7 mm package. 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 through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current and an optional external temperature. Response to fault conditions can be set to either restart, latch-off or ignore depending on system requirements.

TPS544x25主要特性:

PMBus 1.2 Compliant Converters: 20 A and 30 A
Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.5 V to 5.5 V
5 mm×7 mm LQFN Package
Single Thermal Pad
Integrated 5.5-mΩ and 2.0-mΩ Stacked NexFET Power Stage..

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