TI TPS55288带I2C接口36V 16A升-降压转换器方案
TI公司的TPS55288是带I2C接口同步降压/升压的压转换器,集成了两个16A MOSFET,以平衡解决方案尺寸和USB PD应用效率.TPS55288输入电压高达36V,工作在降压模式时输出电流15A.工作在升压模式是,器件8V输入时提供100W或5V输入时提供60W.开关频率通过外接电阻可编程在200kHz到2.4MHz.通过I2C接口,输出电压可在0.8V到21.26V编程,每步20mV.TPS55288具有输出过压保护,逐个周期的开关峰值电流限制和输出短路保护.基准电压精度±1% ,固定4ms软起动时间.热关断保护,4.0mmx3.5mm Hotrod™ QFN封装.主要用在USB PD,汽车充电器,坞站和工业PC. 中电网为您整理如下详细资料，本文介绍了TPS55288主要特性,功能框图和典型应用电路,以及评估模块TPS55288EVM-045快速连接图,电路图,材料清单和PCB设计图.
The TPS55288 is a synchronous buck-boostconverter optimized for converting battery voltage oradaptor voltage into power supply rails. TheTPS55288 integrates two 16-A MOSFETs of theboost leg to balance the solution size and efficiencyfor USB Power Delivery (USB PD) application.
The TPS55288 has up to 36 V input voltagecapability. It can output 15 A when working in buckmode. When working in boost mode,the devicedelivers 100 W from 8 V input or 60 W from 5 V input.When the input is a single cell Li-ion battery, thedevice outputs 45 W with input voltage down to 3.1 V.
The switching frequency is programmable from 200kHz to 2.4 MHz through an external resistor.
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