Linear LTM4607高效降－升压模式开关电源解决方案

Linear公司的LTM4607是高效(高达98%)开关模式降-升压模式电源,集成了开关控制器,功率FET和支持的元件,输入电压4.5V到36V,输出电压0.8V到24V由外接电阻设定.升压模式输出电流高达5A,降压模式输出电流高达10A,主要用在通信,服务器和网络设备,工业和自动化设备,大功率以电池为能源的设备.本文介绍了LTM4607主要特性,框图,多种应用电路以及演示板DC1601B主要特性,电路图以及材料清单.

The LTM.4607 is a high efficiency switching mode buckboost power supply. Included in the package are the switching controller, power FETs, and support components.

Operating over an input voltage range of 4.5V to 36V, the LTM4607 supports an output voltage range of 0.8V to 24V, set by a resistor. This high efficiency design delivers up to 5A continuous current in boost mode (10A in buck mode). Only the inductor, sense resistor, bulk input and output capacitors are needed to finish the design.

The low profile package enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The high switching frequency and current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The LTM4607 can be frequency synchronized with an external clock to reduce undesirable frequency harmonics.
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