TPS2544RTER

Product Overview

The TPS2544RTER from Texas Instruments is a high-side N-channel power switch intended for USB switching and load-driver functions. It provides a single 1:1 output that operates with a load voltage from 4.5V to 5.5V and delivers up to 3A. The device uses an On/Off interface with non-inverting input control and includes adjustable current limiting, over-temperature protection, and UVLO. It is offered in a 16-WQFN (3x3) exposed-pad surface-mount package for power distribution designs.

Key Features

• Single-output high-side N-channel USB switch with 1:1 ratio
• 3A maximum output current with 73mOhm typical Rds On
• 4.5V to 5.5V load voltage range; no Vcc/Vdd supply required
• On/Off interface with non-inverting input control
• Adjustable current limiting, over-temperature protection, and UVLO fault protection
• Operating temperature range of -40°C to 125°C (TJ)
• 16-WQFN (3x3) exposed-pad surface-mount package

Applications

• Controlling power delivery to USB peripherals and downstream ports
• Switching loads in the 4.5V to 5.5V range in embedded systems and expansion boards
• Managing power to I/O interfaces within surface-mount assemblies

Design & Procurement Notes

Designers can select this switch when a high-side load path requires simple On/Off control, a 3A output rating, and integrated protection for current, temperature, and undervoltage conditions. The 73mOhm typical Rds On and 16-WQFN (3x3) exposed pad should be considered for conduction loss and thermal layout. Since the load voltage range is 4.5V to 5.5V and the supply is not required, verify the system input and control logic match the non-inverting On/Off interface.