Linear LTM4624 4A uModule降压电源解决方案

Linear公司的LTM4624是4A开关模式微模块(uMoule)降压稳压器,集成了开关控制器,功率FET,电感和支持元件.输入电压4V-14V或2.375V-14V,输出电压0.6V-5.5V总误差±2%,连续输出电流4A,峰值电流5A,主要用在通信和工业设备,医疗诊断设备,数据存储设备以及测试和调试系统.本文介绍了LTM4624主要特性,简化框图,典型应用电路以及LTM4624EY 10A降压μModule稳压器演示板1889A主要特性,电路图与材料清单.

The LTM.4624 is a complete 4A step-down switching mode μModule. (micromodule) regulator in a tiny 6.25mm × 6.25mm × 5.01mm BGA package. Included in the package are the switching controller, power FETs, inductor and support components. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4624 supports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Its high efficiency design delivers 4A continuous, 5A peak, output current.

Only bulk input and output capacitors are needed. The LTM4624 supports selectable discontinuous mode operation and output voltage tracking for supply rail sequencing.

Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.
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