TPS40071PWPR Equivalent & Substitute Parts

Part Overview

The TPS40071PWPR is a buck regulator positive output step-down DC-DC controller IC manufactured by Texas Instruments in a 16-HTSSOP package. This device functions as a transistor driver for step-down topology applications with a single output phase, operating across a supply voltage range of 4.5V to 28V with switching frequencies up to 1MHz. The product status is listed as Not For New Designs, making identification of equivalent alternatives essential for ongoing production and design continuity.

Substiute Parts

TPS40071PWPR

Texas InstrumentsIn Stock: 24980TPS40071PWPR Datasheet

Current PartRFQ

TPS40077PWPR

Texas InstrumentsIn Stock: 1725TPS40077PWPR Datasheet

MFR RecommendedRFQ

TPS40070PWPR

Texas InstrumentsIn Stock: 5818TPS40070PWPR Datasheet

Parametric EquivalentRFQ

TPS40071PWP

Texas InstrumentsIn Stock: 1525TPS40071PWP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS40071PWPR is determined by strict equivalence across the following critical parameters: output topology (buck step-down), output configuration (positive), number of outputs (1), output phases (1), supply voltage range (4.5V ~ 28V), switching frequency capability (up to 1MHz), duty cycle maximum (93%), synchronous rectifier presence, package type (16-PowerTSSOP), and mounting method (surface mount). All substitute parts must maintain identical electrical specifications and physical form factors to ensure direct replacement capability without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using TPS40071PWPR, the TPS40077PWPR is the primary recommended substitute due to its Active product status, ensuring long-term availability and continued manufacturer support. The TPS40077PWPR maintains identical electrical and mechanical specifications while offering superior lifecycle status compared to the original part.

The TPS40070PWPR provides parametric equivalence with all critical electrical characteristics matching the TPS40071PWPR. However, this part carries a Last Time Buy status, indicating limited future availability and making it suitable only for near-term production requirements.

The TPS40071PWP offers electrical equivalence to the TPS40071PWPR with the distinction of Tube packaging instead of Tape & Reel. This variant is appropriate for applications where packaging format does not impose supply chain constraints, though it shares the Not For New Designs status of the original part.

All substitute parts maintain ROHS3 compliance and identical MSL ratings, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can TPS40077PWPR directly replace TPS40071PWPR in existing designs?

A: Yes. The TPS40077PWPR maintains identical electrical specifications, control features, supply voltage range, switching frequency capability, duty cycle rating, and 16-PowerTSSOP package dimensions. Direct substitution is possible without circuit modification.

Q: What is the primary difference between TPS40071PWPR and TPS40077PWPR?

A: The primary difference is product status. TPS40077PWPR is Active, while TPS40071PWPR is Not For New Designs. Electrically and mechanically, both parts are equivalent.

Q: Why is TPS40070PWPR listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this part number. Inventory remains available but future production is not planned. This part is suitable for existing production runs with defined end dates.

Q: Does packaging format affect electrical performance?

A: No. TPS40071PWP (Tube packaging) and TPS40071PWPR (Tape & Reel packaging) are electrically identical. Packaging format affects only supply chain logistics and handling procedures, not circuit functionality.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TPS40077PWPR, TPS40070PWPR, and TPS40071PWP all carry ROHS3 Compliant status, matching the original TPS40071PWPR.

Q: What control features are present across all substitute parts?

A: All parts include Current Limit, Frequency Control, Power Good, and Soft Start features. TPS40071PWPR, TPS40070PWPR, and TPS40071PWP additionally include Enable control. TPS40077PWPR does not include Enable control.

Q: Can TPS40070PWPR be used for new production designs?

A: TPS40070PWPR carries Last Time Buy status, making it unsuitable for new production designs. For new designs, TPS40077PWPR is the appropriate selection due to its Active status.