供应 TPS5430DDAR 大型降压交换器

TPS5430DDAR

The TPS543x is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltagelockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feedforward circuit to improve the transient response.Using the ENA pin, shutdown supply current is reduced to 18 μA typically. Other features include an active-high enable, overcurrent limiting, over-voltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS543x feedback loop is internally compensated.The TPS5431 is intended to operate from power rails up to 23 V. The TPS5430 regulates a wide variety of power sources including 24 V bus.

The TPS543x device is available in a thermally enhanced, easy to use 8-pin SOIC PowerPAD™package. TI provides evaluation modules and the Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

TPS543x是一种高输出电流PWM转换器，集成了低电阻、高侧N沟道MOSFET。包括在基板上列出的特点是一个高性能的电压误差放大器，提供严密的电压调节精度在瞬态条件下；欠压锁定电路，以防止启动，直到输入电压达到5.5 V；内部设置的限制涌入电流的慢启动电路；采用电压前馈电路改善瞬态响应，使用ENA引脚，关断电源电流降低到18μ一个典型的例子。其他功能包括一个积极的高使能，过电流限制，过电压保护和热关机。为了减少设计的复杂性和外部元件的数量，TPS543x反馈回路是内部补偿。TPS5431是打算从电源轨高达23伏。TPS5430可调节多种电源，包括24 V总线。
TPS543x设备采用热增强、易于使用的8针SOIC电源板™包裹。TI提供评估模块和Designer软件工具，帮助快速实现高性能电源设计，以满足激烈的设备开发周期。