TPS54810PWPR Equivalent & Substitute Parts

Part Overview

The TPS54810PWPR is a buck switching regulator IC from Texas Instruments' SWIFT™ series, designed for positive adjustable step-down voltage regulation with 8A output current capability. This device operates across a 4V to 6V input range and delivers adjustable output voltage from 0.9V to 3.3V with integrated synchronous rectification. The part is currently in Last Time Buy status, making identification of functionally equivalent alternatives essential for design continuity and long-term supply chain planning.

Substiute Parts

TPS54810PWPR

Texas InstrumentsIn Stock: 3862TPS54810PWPR Datasheet

Current PartRFQ

TPS62871QWRXSRQ1

Texas InstrumentsIn Stock: 2703TPS62871QWRXSRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS54810PWPR is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Buck topology with positive adjustable output configuration
• Input voltage range compatibility (minimum 4V support required)
• Output voltage adjustability range encompassing 0.9V to 3.3V
• Output current capability of 8A or greater
• Integrated synchronous rectification
• Operating temperature range of -40°C to 85°C or broader

Mechanical Compatibility Criteria:

• Surface mount technology
• Package footprint compatibility or PCB redesign feasibility
• RoHS3 compliance

The TPS62871QWRXSRQ1 qualifies as a manufacturer-recommended substitute based on these parameters, despite differences in package type and switching frequency characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TPS62871QWRXSRQ1 is designated as the manufacturer-recommended substitute for the TPS54810PWPR. Selection between these devices should be based on the following factors:

Product Lifecycle Considerations: The TPS54810PWPR is in Last Time Buy status, indicating discontinued production. The TPS62871QWRXSRQ1 maintains Active product status with ongoing availability and support.

Compliance and Qualification: Both devices are ROHS3 compliant. The TPS62871QWRXSRQ1 carries AEC-Q100 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Electrical Performance: The TPS62871QWRXSRQ1 provides superior output current capability (9A versus 8A) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). The lower minimum input voltage (2.7V versus 4V) and lower minimum output voltage (0.4V versus 0.9V) expand application flexibility.

Package Transition: The substitute employs a 16-TFQFN package versus the original 28-PowerTSSOP package. This represents a significant footprint reduction and requires PCB layout redesign. The wettable flank feature of the TFQFN package improves solder joint inspection capability.

Switching Frequency: The TPS62871QWRXSRQ1 operates at higher switching frequencies (1.5MHz to 3MHz versus 350kHz to 550kHz), resulting in reduced output filter component size but requiring attention to EMI management in the design.

Frequently Asked Questions (FAQ)

Q: Can the TPS62871QWRXSRQ1 directly replace the TPS54810PWPR without PCB modification?

A: No. The package types differ significantly (16-TFQFN versus 28-PowerTSSOP), requiring PCB layout redesign. Pin assignments and thermal characteristics differ, necessitating schematic and layout review before implementation.

Q: What are the key electrical differences between these devices?

A: The TPS62871QWRXSRQ1 offers lower minimum input voltage (2.7V versus 4V), lower minimum output voltage (0.4V versus 0.9V), higher output current (9A versus 8A), and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). Switching frequency is significantly higher (1.5MHz to 3MHz versus 350kHz to 550kHz).

Q: Is the TPS62871QWRXSRQ1 suitable for automotive applications?

A: Yes. The TPS62871QWRXSRQ1 carries AEC-Q100 automotive qualification, making it suitable for automotive-grade applications. The original TPS54810PWPR does not carry this qualification.

Q: How does the package change affect thermal management?

A: The 16-TFQFN package with exposed pad provides efficient thermal dissipation through the pad connection. The smaller package footprint may require different thermal design considerations compared to the 28-PowerTSSOP. Thermal analysis specific to your application is necessary.

Q: Are there any compatibility concerns with the higher switching frequency of the substitute?

A: The TPS62871QWRXSRQ1 operates at 1.5MHz to 3MHz versus 350kHz to 550kHz. Higher switching frequency reduces output filter component size but increases EMI generation. Filter design and PCB layout must be reviewed to ensure compliance with EMI requirements.

Q: What is the inventory status of these parts?

A: TPS54810PWPR: 3757 pieces in stock (Last Time Buy status). TPS62871QWRXSRQ1: 2659 pieces in stock (Active product status with ongoing availability).