TI CSD86350Q5D高效大电流降压电源解决方案

TI 公司的CSD86350Q5D是NexFET™半桥区块,25A时的效率90%,高达40A,工作频率高达1.5MHz,5V栅极驱动,RoHS兼容,主要用在同步降压转换器,大电流低占空比电源,多相同步降压转换器,POL DC/DC转换器,以及IMVP, VRM和VRD应用.本文介绍了CSD86350Q5D主要特性, 典型应用框图以及CSD86350Q5DEVM-604评估板主要特性,电路图和材料清单,元件布局图.
The CSD86350Q5D NexFET™ power block is an optimized design for synchronous buck applications offering high current, high efficiency, and high frequency capability in a small 5-mm × 6-mm outline. Optimized for 5V gate drive applications, this product offers a flexible solution capable of offering a high density power supply when paired with any 5V gate drive from an external controller/driver.
CSD86350Q5D主要特性:
Half-Bridge Power Block
90% system Efficiency at 25A
Up To 40A Operation
High Frequency Operation (Up To 1.5MHz)
High Density – SON 5-mm × 6-mm Footprint
Optimized for 5V Gate Drive
Low Switching Losses
Ultra Low Inductance Package
RoHS Compliant
Halogen Free
Pb-Free Terminal Plating
CSD86350Q5D应用:
Synchronous Buck Converters
High Frequency Applications
High Current, Low Duty Cycle Applications
Multiphase Synchronous Buck Converters
POL DC-DC Converters
IMVP, VRM, and VRD Applications

图1.CSD86350Q5D框图

图2.CSD86350Q5D典型应用框图
CSD86350Q5DEVM-604评估板
The CSD86350Q5DEVM-604 evaluation module (EVM) is a synchronous buck converter featuring TI’s NexFET™ Power Block technology to provide a high current, ultra-high density power supply solution. The EVM provides a 1.2V output at 25A from a 12V nominal input bus at over 92% efficiency. The EVM is designed to operate from a single supply, so no additional bias voltage is required. The EVM uses the TPS51218 high performance, mid-input voltage, synchronous buck controller and TI’s NexFET™ Power Block to optimize the efficiency and power density of the total solution.
The CSD8635...