TPS2553DBVT-1

Power Distribution Switches, Load Drivers Overview

The TPS2553DBVT-1 is a single-channel USB power distribution switch manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 6.5 V and supports a continuous load current of 1.5 A. The device features an adjustable current limit ranging from 75 mA to 1.7 A, set via an external resistor. Key electrical parameters include a maximum on-resistance of 115 mΩ, with rise and fall times capped at 3 ms each. It functions in an industrial temperature range from -40°C to +85°C and is housed in a WSON-6 surface-mount package.

Power Distribution Switches, Load Drivers Feature Summary

• Provides programmable constant-current limiting for precise overcurrent protection
• Integrates reverse voltage blocking to protect input sources during back-powering events
• Features controlled slew rates to minimize inrush currents during turn-on
• Includes fault status output indicating overcurrent or reverse voltage conditions

Power Distribution Switches, Load Drivers Applications

• USB port and hub protection circuits
• Digital television power distribution
• Set-top box power management
• VoIP telephone power switching

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix 'DRVT-1' against the manufacturer's official datasheet to confirm pinout and marking variations. Ensure the selected package matches the WSON-6 footprint requirements. Confirm RoHS compliance status through the latest product change notifications. Validate that the operating temperature range meets the specific environmental constraints of the target application design.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when designing systems requiring adjustable current limits rather than fixed thresholds. It is suitable for applications needing reverse voltage protection without external diodes. Consider the WSON-6 package size constraints relative to available PCB real estate. Evaluate the thermal performance based on the maximum on-resistance and expected load currents under worst-case operating conditions.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the TPS2553 series of USB current-limited power switches. The series is designed for power distribution in portable and consumer electronics. It complements other TI power management solutions by providing simple, high-side switching with integrated protection features. The family includes variants with different packages and current ratings to suit diverse system integration needs.

Power Distribution Switches, Load Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.