Description

Featuring an integrated high-side MOSFET, the TPS54360BDDA is a 60-V, 3.5-A step-down regulator. Simple external compensation and a variety of component options are offered by current mode control. A low ripple pulse skip mode lowers the no-load supply current to 146 μA. By pulling the enable pin low, the shutdown supply current is decreased to 2 μA.

The inbuilt setting for Undervoltage lockout is 4.3 V, but it can be raised by connecting an enable pin. A regulated start-up and elimination of overshoot are achieved by internally controlling the output voltage start-up ramp.

Either efficiency or external component size can be enhanced with a large switching-frequency range. Internal and exterior components are safeguarded during an overload state via frequency foldback and thermal shutdown.

An 8-pin thermally improved HSOIC PowerPAD^TM packaging for the TPS54360BDDA is also offered.

Features

• Accurate Cycle-by-Cycle Current Limit

• Thermal, Overvoltage, and Frequency Foldback Protection

• 0.8 V 1% Internal Voltage Reference

• 8-Pin HSOIC with PowerPAD? Package

• –40°C to 150°C TJ Operating Range

• Create a Custom Design using the TPS54360B with the WEBENCH? Power Designer

• 146-μA Operating Quiescent Current

• 2-μA Shutdown Current

• 100-kHz to 2.5-MHz Fixed Switching Frequency

• Synchronizes to External Clock

• Adjustable UVLO Voltage and Hysteresis

• Internal Soft Start

• 4.5-V to 60-V (65-V Abs Max) Input Range

• 3.5-A Continuous Current, 4.5-A Minimum Peak Inductor Current Limit

• Current Mode Control DC/DC Converter

• 92-m? High-Side MOSFET

• High Efficiency at Light Loads with Pulse Skipping Eco-mode?

• Low Dropout at Light Loads with Integrated BOOT Recharge FET

Applications

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

• Automotive electronics

• Power converters

• Inverter applications with a switching frequency

• Radio frequency applications