TPS54394参考设计电路|降压转换器应用电路

TPS54394是一款双路、自适应接通时间D-CAP2™模式同步降压转换器。此篇主要介绍了TPS54394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。

TPS54394特性：宽输入电压范围：4.5V至18V；输出电压范围：0.76V至7V；高初始基准精度；固定软启动时间：1ms

TPS54394典型应用范围：数字电视电源；网络互联家庭终端设备；数字机顶盒(STB)；DVD播放器/刻录机

TPS54394参考设计应用电路：

图1TPS54394内部结构图

TheTPS54394 is a 3A/3A dual synchronous step-down (buck) converter with two integrated N-channel MOSFETs for each channel. It operates using D-CAP2™ control mode. The fast transient response of D-CAP2™ control reduces the required output capacitance to meet a specific level of performance. Proprietary internal circuitry allows the use of low ESR output capacitors including ceramic and special polymer types.

图2TPS54394参考设计图

TheTPS54394 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54394 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution.

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