TPS54880PWPR Equivalent & Substitute Parts

Part Overview

The TPS54880PWPR is a buck switching regulator IC from Texas Instruments' SWIFT™ series, designed for positive adjustable step-down voltage regulation. It delivers 8A output current with an input voltage range of 4V to 6V and adjustable output from 0.9V to 3.3V. The device operates at 350kHz switching frequency with integrated synchronous rectification and is housed in a 28-PowerTSSOP package.

This part is designated as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring comparable buck regulation performance.

Key Parameters

Parameter	TPS54880PWPR
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Function	Step-Down (Buck)
Output Configuration	Positive Adjustable
Number of Outputs	1
Voltage - Input (Min/Max)	4V to 6V
Voltage - Output (Min/Max)	0.9V to 3.3V
Current - Output	8A
Frequency - Switching	350kHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C to 85°C
Package / Case	28-PowerTSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution of the TPS54880PWPR is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Output topology: Buck (step-down) configuration with positive adjustable output
Input voltage range: Must accommodate 4V to 6V minimum specification
Output voltage range: Must support adjustable output from 0.9V to 3.3V
Output current capability: Minimum 8A required
Synchronous rectification: Integrated synchronous rectifier required
Operating temperature range: Must meet or exceed -40°C to 85°C

Mechanical Compatibility Criteria:

Mounting type: Surface mount only
Package compatibility: Physical footprint and pin configuration must allow direct or adapter-based substitution
RoHS compliance: ROHS3 Compliant status required

The TPS62871QWRXSRQ1 qualifies as a substitute based on these parameters, with enhanced specifications in several areas including higher output current (9A), wider input voltage range (2.7V to 6V), lower minimum output voltage (0.4V), and extended operating temperature range (-40°C to 125°C).

Parameter Comparison

Parameter	TPS54880PWPR	TPS62871QWRXSRQ1	Compatibility Notes
Manufacturer	Texas Instruments	Texas Instruments	Same manufacturer
Category	Power Management (PMIC)	Power Management (PMIC)	Same category
Function	Step-Down (Buck)	Step-Down (Buck)	Identical topology
Output Configuration	Positive Adjustable	Positive Adjustable	Identical configuration
Number of Outputs	1	1	Identical
Voltage - Input (Min)	4V	2.7V	Substitute has wider range
Voltage - Input (Max)	6V	6V	Identical maximum
Voltage - Output (Min)	0.9V	0.4V	Substitute has lower minimum
Voltage - Output (Max)	3.3V	3.35V	Functionally equivalent
Current - Output	8A	9A	Substitute exceeds requirement
Synchronous Rectifier	Yes	Yes	Both integrated
Operating Temperature	-40°C to 85°C	-40°C to 125°C	Substitute has extended range
Mounting Type	Surface Mount	Surface Mount, Wettable Flank	Both surface mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Both compliant
Product Status	Last Time Buy	Active	Substitute is actively produced
Qualification	Standard	AEC-Q100 Automotive	Substitute has automotive qualification

Engineering Selection Recommendations

The TPS62871QWRXSRQ1 is a qualified substitute for the TPS54880PWPR based on the following factors:

Product Status Advantage: The TPS54880PWPR is Last Time Buy, while the TPS62871QWRXSRQ1 is Active. This ensures long-term availability and supply chain continuity for new designs and production runs.

Compliance and Certification: Both parts maintain ROHS3 compliance. The TPS62871QWRXSRQ1 carries AEC-Q100 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Electrical Performance: The substitute meets or exceeds all critical electrical parameters. Output current capability increases from 8A to 9A, input voltage range expands to 2.7V minimum, and operating temperature range extends to 125°C. Output voltage adjustability remains compatible with the original specification range.

Package Consideration: The TPS62871QWRXSRQ1 uses a 16-TFQFN package versus the 28-PowerTSSOP of the original part. This represents a significant package change requiring PCB layout redesign and is not a direct pin-for-pin replacement. Design integration effort is necessary.

Frequently Asked Questions (FAQ)

Q: Can the TPS62871QWRXSRQ1 directly replace the TPS54880PWPR on existing PCBs?

A: No. The TPS62871QWRXSRQ1 uses a 16-TFQFN package while the TPS54880PWPR uses a 28-PowerTSSOP package. Pin counts and footprints differ significantly. PCB redesign is required for integration.

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

A: The TPS62871QWRXSRQ1 provides higher output current (9A vs 8A), lower minimum output voltage (0.4V vs 0.9V), wider input voltage range (2.7V to 6V vs 4V to 6V), and extended operating temperature range (-40°C to 125°C vs -40°C to 85°C). All differences favor the substitute for broader application compatibility.

Q: Is the TPS62871QWRXSRQ1 suitable for automotive applications?

A: Yes. The TPS62871QWRXSRQ1 carries AEC-Q100 automotive qualification, making it suitable for automotive-grade designs. The original TPS54880PWPR does not have this certification.

Q: Why is the TPS54880PWPR designated Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued this product line. The TPS62871QWRXSRQ1 represents the active replacement within the PMIC portfolio, ensuring continued availability for new designs.

Q: Are both parts RoHS compliant?

A: Yes. Both the TPS54880PWPR and TPS62871QWRXSRQ1 are ROHS3 compliant and REACH unaffected.

Q: What switching frequency does the substitute operate at?

A: The TPS62871QWRXSRQ1 operates at selectable frequencies: 1.5MHz, 2.25MHz, 2.5MHz, or 3MHz, compared to the fixed 350kHz of the original part. This provides design flexibility for noise and efficiency optimization.

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