TPS562219参考设计电路|同步降压调节器应用电路

TPS562219同步降压调节器是采用8引脚SOT-23封装的简单易用的2A同步降压转换器。此篇主要介绍了TPS562219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。

TPS562219特性：650-kHz开关频率；低关断电流低于10µA；逐周期过流限制；断续模式欠压保护

TPS562219典型应用范围：数字电视供电；高定义蓝光光盘™播放器；网络家庭终端；数字机顶盒（STB）

TPS562219参考设计应用电路：

图1TPS562219内部结构图

The TPS562219 is easy-to-use, 2-A,synchronous step-down converter in 8 pin SOT-23 package. The devices are optimized to operate with minimum external component counts and also optimized to achieve low standby current.

图2TPS562219参考设计图

The TPS562219is 2-A synchronous step-down converter. The proprietary D-CAP2™ mode control supports low ESR output capacitors such as specialty polymer capacitors and multi-layer ceramic capacitors without complex external compensation circuits. The fast transient response of D-CAP2™ mode control can reduce the output capacitance required to meet a specific level of performance.

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