[原创]Maxim MAX17227J500mA nanoPower升压转换器解决方案

Maxim公司的MAX17227J是400mV到5.5V输入,500mA nanoPower升压转换器具有短路保护和自动直通模式,为负载提供高达500mA的峰值电感电流,并提供自动直通工作.器件具有真正关断(True Shutdown™),逐个周期的电感电流限制,短路和热保护特性.MAX17227J提供超低静态电流,小型总体解决方案尺寸和高效对负载和线路范围内的吞吐量.MAX17227J的静态电流为350nA,具有输出短路保护,过六和超温保护,峰值效率为95%,在500μA是为89%或更高,5.0V时(VIN>3.6V)时典型输出电流为300mA,起动电压最小为800mV,具有有源放电特性,多种封装选择:1.58mm x 0.89mm, 0.4mm Pitch, 6-Bump (3 x 2)WLP和2mm x 2mm, 8引脚TDFN.工作温度-40C 到 +125C.主要用在医疗电子如临床仪器和电池为能源设备,工业如紧急照明,IoT传感器,以及消费类电子如Wi-FiR模块,窄带IoT和可穿戴设备.本文介绍了MAX17227J主要特性和优势,功能框图,典型工作电路图以及评估板MAX17227J WLP EK主要特性和优势, 材料清单和PCB设计图.

The MAX17227J is a nanoPower boost converter capableof delivering a load up to 500mA peak inductor currentand offering automatic pass-through operation, True Shutdown™, cycle-by-cycle inductor current limit, short-circuit,and thermal-protection features. The MAX17227J offersultra-low quiescent current, small total solution size, and

high efficiency throughout the load and line range. TheMAX17227J is ideal for battery-powered applicationswhere long battery life is a must and high efficiency is requiredat all power levels.

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