TPS54680PWPR Equivalent & Substitute Parts

Part Overview

The TPS54680PWPR is a SWIFT™ Converter voltage regulator IC manufactured by Texas Instruments, designed for distributed power systems applications. This device features a single output with input voltage range of 3V to 6V and adjustable output voltage from 0.9V to 4.5V. The part is currently in Last Time Buy status, making identification of suitable alternatives essential for ongoing design support and procurement planning.

Substiute Parts

TPS54680PWPR

Texas InstrumentsIn Stock: 3736TPS54680PWPR Datasheet

Current PartRFQ

TPS62867RQYR

Texas InstrumentsIn Stock: 3362TPS62867RQYR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TPS62867RQYR is identified as a manufacturer-recommended substitute for the TPS54680PWPR. Substitution eligibility is determined by the following critical parameters:

• Single Output Configuration: Both devices provide one regulated output
• Input Voltage Compatibility: TPS54680PWPR operates at 3V ~ 6V; TPS62867RQYR operates at 2.4V ~ 5.5V, providing overlapping operational range
• Output Voltage Adjustability: Both devices support adjustable output voltage within their respective ranges
• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL ratings
• Manufacturer Continuity: Both are Texas Instruments products, ensuring design consistency and supply chain reliability

The TPS62867RQYR represents an active product with extended operating temperature range (-40°C ~ 125°C) and higher current output capability (6A), making it suitable for applications requiring enhanced thermal performance and power delivery.

Parameter Comparison

Engineering Selection Recommendations

The TPS62867RQYR is designated as the manufacturer-recommended substitute for the TPS54680PWPR. Both devices maintain identical regulatory compliance status (ROHS3, REACH Unaffected, EAR99 classification) and moisture sensitivity ratings. The TPS62867RQYR carries Active product status, ensuring long-term availability and continued manufacturer support, whereas the TPS54680PWPR is in Last Time Buy status.

Selection between these devices should be based on application-specific requirements: the TPS54680PWPR remains suitable for existing designs within its specified operating parameters, while the TPS62867RQYR is recommended for new designs requiring extended temperature operation or higher output current capability.

Frequently Asked Questions (FAQ)

Q: Can the TPS62867RQYR directly replace the TPS54680PWPR in existing designs?

A: Functional substitution is possible within the overlapping input voltage range (3V ~ 6V) and output voltage range (0.9V ~ 4.5V). However, package differences must be evaluated: TPS54680PWPR uses 28-PowerTSSOP while TPS62867RQYR uses 9-VFQFN, requiring PCB layout modifications.

Q: What are the key differences in electrical performance?

A: The TPS62867RQYR provides higher output current (6A versus unspecified for TPS54680PWPR), extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C), and switching frequency of 2.4MHz with synchronous rectification. Output voltage capability extends to 5.5V compared to 4.5V maximum for the TPS54680PWPR.

Q: Are there package compatibility considerations?

A: Yes. The TPS54680PWPR is packaged in 28-PowerTSSOP (0.173", 4.40mm width), while the TPS62867RQYR uses 9-VFQFN (1.5x2.5mm). These are fundamentally different form factors requiring complete PCB redesign for substitution.

Q: What is the significance of the Last Time Buy status for TPS54680PWPR?

A: Last Time Buy status indicates the manufacturer will cease production. Existing inventory remains available, but no future manufacturing is planned. The TPS62867RQYR, with Active status, represents the recommended path for new designs and long-term supply continuity.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both devices are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. MSL ratings are identical at Level 2 (1 Year).