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 5.5V; 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 15μA typically. Other features include an
active-high enable, overcurrent limiting, overvoltage
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 23V. The TPS5430 regulates a wide variety of
power sources including 24V bus.
The TPS543x device is available in a thermally
enhanced, easy to use 8-pin SOIC PowerPAD
integrated circuit 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.