TPS65281-1RGVR

Power Distribution Switches, Load Drivers Overview

The TPS65281-1RGVR is a USB power switch manufactured by Texas Instruments, designed for high-current load switching applications. It features an N-channel output configuration with a single channel and a 1:1 input-to-output ratio. The device supports a load voltage range of 4.5V to 18V and delivers a maximum output current of 2.7A. Key electrical parameters include a typical on-resistance of 90 milliohms and an operating junction temperature range from -40°C to 125°C. It utilizes a 16-VQFN (4x4) surface-mount package with a bare pad and operates via an On/Off interface without requiring a separate supply voltage.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates controllable slew rate management to mitigate inrush current during load connection.
• Provides comprehensive fault protection including adjustable current limiting, over-temperature shutdown, and under-voltage lockout.
• Features status flag outputs to indicate operational state and fault conditions.
• Utilizes an N-channel architecture for efficient high-side power switching.

Power Distribution Switches, Load Drivers Applications

• USB hub port power distribution
• Peripheral device power gating
• High-current load switching in embedded systems

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix '1' in the part number TPS65281-1RGVR against official Texas Instruments documentation to confirm functional variations or pinout differences compared to the standard TPS65281. Ensure the 16-VQFN footprint matches the design layout. Confirm RoHS3 compliance and moisture sensitivity level requirements for the assembly process.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a robust, single-channel USB power switch with integrated thermal and current protection is required. The 2.7A capability and low on-resistance make it suitable for powering downstream peripherals. Consider the 16-VQFN package size constraints and the need for external components if adjustable current limiting is utilized.

Power Distribution Switches, Load Drivers Part Context

This component belongs to the TPS65281 family of USB power switches from Texas Instruments. It is categorized under Power Management ICs (PMIC), specifically within the Distribution Switches and Load Drivers segment. The device is designed to replace discrete MOSFET solutions, offering integrated protection and control logic in a compact form factor.

Power Distribution Switches, Load Drivers Replacement Considerations

The TPS65281RGVR is a direct package variant of the same core device. Verify if the '-1' suffix denotes a specific tape-and-reel specification or internal revision rather than a functional change. Consult the manufacturer's substitution guide for cross-reference options with similar current ratings and protection features.