[原创]TI TPS541620 12A同步降压SWIFT带补偿转换器解决方案

TI公司的TPS541620是高度集成的非隔离双路DC/DC转换器,器件可配置成两个6A轨,或组合成单个12A的电流负载.器件实现固定频率先进电流模式控制(ACM)和带补偿转换器爬坡幅度配置,以优化回路带宽.两个模式选择引脚(MODE1 和2)用来选择开关频率,配置,时钟相延迟和内部补偿. TPS541620稳压器是容易使用,双输出,同步降压DC/DC转换器,工作电压4.5V到15V.器件没个输出可提供高达6A DC负载电流,具有极好的效率和热性能,非常小的解决方案尺寸.器件高度可配置,其两个输出组合可提供高达12A电流. TPS541620可工作在多相模式.器件集成了无损耗电流检测的24-mΩ和10-mΩ MOSFET,采用SYNC和CLKO可同步于外接时钟,输出电压为0.5V到5.5V,四个可选择的开关频率为500 kHz, 1 MHz, 1.5 MHz和2.0 MHz,支持安全预偏压起动,带延迟的超温保护,工作结温为–40C 到 150C, 3-mm × 5-mm 25引脚VQFN-HR封装.主要用在无线和有线通信基础设施,以太网交换和路由器, ASIC, SoC, FPGA, DSP I/O电压轨,工业测试和测量设备.本文介绍了TPS541620主要特性,简化框图和功能框图,多种应用电路,以及2相SWIFT™评估模块TPS541620SEVM-050主要特性,电路图,材料清单和PCB设计图.

The TPS541620 is a highly integrated non-isolateddual DC-DC converter that is capable of highfrequencyoperation in a 3-mm × 5-mm package.

The device can be configured as two single 6-Arails or combined to drive a single 12-A currentload. The device implements a fixed-frequencyadvanced current mode control (ACM) with selectableramp amplitude configurations to optimize the loopbandwidth. Two mode selection pins (MODE1 and 2)are used to select switching frequency, configuration,clock phase delay, and internal compensation.

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