TPS630252参考设计电路|降压-升压转换器应用电路

TPS630252是一款高效、低静态电流降压-升压转换器，此转换器适用于输入电压会高于或低于输出的应用。此篇主要介绍了TPS63025特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间。

TPS630252特性：输入电压范围2.3V至5.5V；可调和固定输出电压；2.5MHz典型开关频率；运行静态电流35μA

TPS630252典型应用范围：手机、智能电话；平板个人电脑；电池供电类应用

TPS630252参考设计应用电路：

图1TPS630252内部结构图

TPS630252 Single Inductor Buck-Boost Converters are high efficiency, low quiescent current converters suitable for applications where the input voltage is higher or lower than the output. Output currents can go as high as 2A in boost mode and as high as 4A in buck mode.

图2TPS630252参考设计图

The maximum average current in the switches is limited to a typical value of 4A. The TPS630252 regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode.