TPS56637RPAR Description

The TPS56637RPAR is a synchronous buck converter with integrated MOSFETs that have high efficiency, high-voltage input, and is simple to use.

The TPS56637RPAR is appropriate for systems powered by 12-V, 19-V, and 24-V power-bus rails because of its wide operating input voltage range of 4.5 V to 28 V. It can deliver up to 6-A continuous output current at output voltages ranging from 0.6 to 13 V.

The DCAP3TM control mode is used by the TPS56637RPAR converter to provide a fast transient response, a good line and load regulation, no need for external compensation, and support for low equivalent series resistance (ESR) output capacitors like POSCAP and MLCC.

TPS56637RPAR Features

• 4.5-V to the 28-V input voltage range

• 0.6-V to 13-V output voltage range

• 6-A maximum continuous output current

• Integrated 26-mΩ and 12-mΩ MOSFETs

• 0.6-V ±1% Reference Voltage

• D-CAP3? control mode for fast transient response

• Eco-mode? and FCCM (forced continuous conduction mode) are selectable for light-load operation through the MODE pin

• Internal 2-ms soft start

• Built-in output discharge function

• 500-kHz switching frequency

• Power good indicator to monitor the output voltage

• Cycle by cycle over the current limit

• Non-latched protections for UV, OV, OT and UVLO

• –40°C to +150°C operating junction temperature

• Small 10-Pin 3.0-mm × 3.0-mm HotRod? QFN Package

TPS56637RPAR Applications

• Enterprise systems: multifunction printers, storage

• Personal electronics: TVs, speakers, set-top boxes, portable electronics

• Industrial applications: electronic point of sale, factory automation and control, motor drives

• General purposes for 12-V,19-V, and 24-V power-bus supply