TPS54360BDDAR Description

The TPS54360BDDAR is a 60-volt, 3.5-amp step-down regulator with a high-side MOSFET incorporated. Current mode control allows for simple external compensation and component selection flexibility. The no-load supply current is reduced to 146 A using a low ripple pulse skip mode. When the enable pin is pushed low, the shutdown supply current is lowered to 2 A. The enable pin can be used to increase the Undervoltage lockout, which is set to 4.3 V by default. To offer a regulated start-up and minimize overshoot, the output voltage start-up ramp is internally controlled. A large switching-frequency range allows for the optimization of either efficiency or external component size. During an overload state, frequency foldback and thermal shutdown protect internal and external components. The TPS54360BDDAR is available in an 8-pin HSOIC PowerPADTM package with thermal enhancements.

TPS54360BDDAR Features

• Internal Soft Start

• 2-μA Shutdown Current

• Synchronizes to External Clock

• 146-μA Operating Quiescent Current

• Accurate Cycle-by-Cycle Current Limit

• Adjustable UVLO Voltage and Hysteresis

• 100-kHz to 2.5-MHz Fixed Switching Frequency

TPS54360BDDAR Applications

• 12-V, 24-V and 48-V Industrial and Communications Power Systems