TPS2553DBVR-1

Power Distribution Switches, Load Drivers Overview

The TPS2553DBVR-1 is a precision adjustable current-limited power-distribution switch from Texas Instruments. It provides up to 1.5 A of continuous load current and features an externally programmable current limit ranging from 75 mA to 1.7 A via a single resistor. The device operates within a supply voltage range of 2.5 V to 6.5 V and includes controlled rise and fall times to minimize inrush current. It offers high accuracy with ±6% current limit precision at higher settings. The component is housed in a WSON-6 package and supports surface-mount installation.

Power Distribution Switches, Load Drivers Feature Summary

• Externally programmable constant-current limit using a single resistor
• Controlled rise and fall times to reduce inrush current during switching
• Integrated reverse voltage blocking to protect input side components
• Fault output flag indicating overcurrent or reverse voltage conditions

Power Distribution Switches, Load Drivers Applications

• USB port and hub protection
• Digital television sets
• Set-top boxes
• VoIP telephones

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix '-1' against the manufacturer datasheet to confirm pinout and functional equivalence, as ordering suffixes may indicate variations in packaging or testing criteria. Ensure the selected variant matches the required WSON-6 package dimensions and thermal characteristics for your PCB layout. Cross-reference the exact part number with official TI documentation to avoid confusion with standard TPS2553 variants that may lack specific revisions or marking codes.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when precise current limiting is required for sensitive loads such as USB peripherals. The adjustable threshold allows optimization for different cable and connector ratings. Consider the WSON-6 package size for space-constrained designs. Verify that the external resistor network can achieve the desired current limit within the specified tolerance. Ensure the operating voltage range aligns with the system's power supply rails.

Power Distribution Switches, Load Drivers Part Context

The TPS2553 series belongs to Texas Instruments' family of precision adjustable current-limited power-distribution switches. These devices are designed for applications requiring robust protection against overcurrent and short circuits. The series typically includes variants with different packages and current ratings, serving as active switches in power distribution networks. The TPS2553DBVR-1 specifically denotes a version within this lineup, likely featuring specific manufacturing or marking updates compared to base models.

Power Distribution Switches, Load Drivers Replacement Considerations

Direct substitutes include other TPS2553 variants such as TPS2553DBVR or TPS2553DRVR, provided the package and electrical specifications match. Check if the '-1' suffix indicates a specific revision that requires an exact match for compliance or marking purposes. Alternative families from other manufacturers may offer similar functionality but require verification of pin compatibility and current limit accuracy.