TPS54550PWPRG4 Equivalent & Substitute Parts

Part Overview

The TPS54550PWPRG4 is a buck switching regulator IC from Texas Instruments' SWIFT™ series, designed for positive adjustable step-down voltage regulation. It delivers 6A output current with an adjustable output range from 0.891V to 17.2V, operating from a 4.5V to 20V input supply. The device features synchronous rectification and operates at switching frequencies of 250kHz or 500kHz.

This part is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

TPS54550PWPRG4

Texas InstrumentsIn Stock: 2134TPS54550PWPRG4 Datasheet

Current PartRFQ

TPS54550PWPR

Texas InstrumentsIn Stock: 6380TPS54550PWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS54550PWPRG4 is determined by strict equivalence across the following critical parameters:

• Base product number (TPS54550)
• Functional topology (buck step-down regulator)
• Output configuration (positive adjustable)
• Electrical specifications (input voltage range 4.5V–20V, output range 0.891V–17.2V, 6A output current)
• Switching frequency (250kHz or 500kHz)
• Synchronous rectifier presence
• Operating temperature range (-40°C to 125°C)
• Package type (16-PowerTSSOP)
• Compliance certifications (ROHS3, REACH Unaffected)

The TPS54550PWPR meets all these criteria and is therefore a direct functional equivalent. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The TPS54550PWPR is a direct substitute for the TPS54550PWPRG4. Both parts share identical electrical specifications, thermal characteristics, and compliance certifications. The substitute part maintains active product status, ensuring long-term availability and supply chain stability compared to the discontinued main part number.

The TPS54550PWPR is available in both Cut Tape and Digi-Reel packaging formats, providing flexibility for different procurement and assembly requirements. Both parts comply with ROHS3 and REACH regulations, maintaining regulatory compliance across applications.

Frequently Asked Questions (FAQ)

Q: Can TPS54550PWPR be used as a direct replacement for TPS54550PWPRG4?

A: Yes. Both parts are identical in electrical performance, thermal range, package type, and compliance status. The substitute part is currently in active production, whereas the original part is discontinued.

Q: Are there any differences in pin configuration or footprint?

A: No. Both parts use the 16-PowerTSSOP package with identical pin assignments and mechanical dimensions (0.173" width, 4.40mm).

Q: What is the difference between the packaging formats?

A: TPS54550PWPRG4 is supplied in Digi-Reel format. TPS54550PWPR is available in both Cut Tape and Digi-Reel formats, offering greater flexibility for procurement quantities and assembly processes.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory standards for environmental and hazardous substance restrictions.

Q: Is the operating temperature range the same?

A: Yes. Both parts operate across the same temperature range of -40°C to 125°C junction temperature, supporting identical thermal specifications for system design.