TPS65281-1RGVR Equivalent & Substitute Parts

Part Overview

The TPS65281-1RGVR is an active N-Channel power switch driver manufactured by Texas Instruments, classified as a Power Management Integrated Circuit (PMIC). This component functions as a USB Switch with a 1:1 input-to-output ratio, delivering up to 2.7A maximum output current in a high-side configuration. The device is currently in active production status with 5,100 units in stock. Alternative part numbers exist within the same product family to address supply chain requirements and inventory availability.

Substiute Parts

TPS65281-1RGVR

Texas InstrumentsIn Stock: 5152TPS65281-1RGVR Datasheet

Current PartRFQ

TPS65281RGVR

Texas InstrumentsIn Stock: 5956TPS65281RGVR Datasheet

Parametric EquivalentRFQ

TPS65281RGVT

Texas InstrumentsIn Stock: 1178TPS65281RGVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS65281-1RGVR is determined by strict parametric matching across the following critical criteria:

• Manufacturer & Base Product Number: All substitutes must originate from Texas Instruments and share the TPS65281 base product number
• Electrical Specifications: Maximum output current (2.7A), load voltage range (4.5V ~ 18V), and on-resistance (90mOhm typical) must be identical
• Functional Configuration: Switch type (USB Switch), output configuration (High Side, N-Channel), and 1:1 input-to-output ratio must match exactly
• Package & Mounting: All parts must use the 16-VQFN Exposed Pad package in Surface Mount configuration
• Compliance & Certifications: RoHS3 compliance and MSL rating (2, 1 Year) must be maintained
• Operating Temperature Range: -40°C to 125°C junction temperature specification must be consistent

The substitute parts TPS65281RGVR and TPS65281RGVT meet all these criteria and are direct parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—TPS65281-1RGVR, TPS65281RGVR, and TPS65281RGVT—are active production components from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts should be based on:

• Inventory Availability: TPS65281RGVR offers the highest stock level (5,895 units), followed by TPS65281-1RGVR (5,100 units) and TPS65281RGVT (1,084 units)
• Compliance Requirements: All three parts maintain ROHS3 compliance and identical MSL ratings, meeting regulatory requirements for industrial and commercial applications
• Supply Chain Continuity: Any of the three part numbers can be substituted without circuit redesign or PCB layout modification, as they share identical package geometry, pin configuration, and electrical performance

Frequently Asked Questions (FAQ)

Q: Can TPS65281RGVR be used as a direct replacement for TPS65281-1RGVR?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, package configuration, and performance characteristics. No circuit modifications are required.

Q: Are there any differences in the 16-VQFN package between these part numbers?

A: No. All three parts use the identical 16-VQFN Exposed Pad package (4x4mm) with Surface Mount configuration. PCB footprints and assembly processes remain unchanged.

Q: What determines substitution eligibility for the TPS65281 family?

A: Substitution is valid when parts maintain identical output current rating (2.7A), load voltage range (4.5V ~ 18V), on-resistance (90mOhm typical), switch type (USB Switch), output configuration (High Side N-Channel), and package specification (16-VQFN Exposed Pad).

Q: Do all substitute parts meet the same compliance standards?

A: Yes. TPS65281-1RGVR, TPS65281RGVR, and TPS65281RGVT are all ROHS3 compliant with MSL rating 2 (1 Year) and identical operating temperature ranges (-40°C to 125°C junction temperature).

Q: Which part number should be selected for new designs?

A: Any of the three part numbers can be used for new designs. Selection should prioritize inventory availability and supply chain lead times. All parts are active production status with equivalent long-term availability.