TPS40070PWPR Equivalent & Substitute Parts

Part Overview

The TPS40070PWPR 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 and synchronous rectifier capability. The part is currently in Last Time Buy status, indicating end-of-life transition. Alternative equivalent parts are necessary to ensure design continuity and long-term supply chain reliability.

Substiute Parts

TPS40070PWPR

Texas InstrumentsIn Stock: 5818TPS40070PWPR Datasheet

Current PartRFQ

TPS53119RGTR

Texas InstrumentsIn Stock: 5990TPS53119RGTR Datasheet

MFR RecommendedRFQ

TPS40071PWPR

Texas InstrumentsIn Stock: 24980TPS40071PWPR Datasheet

Parametric EquivalentRFQ

TPS40077PWPR

Texas InstrumentsIn Stock: 1725TPS40077PWPR Datasheet

Parametric EquivalentRFQ

TPS40070PWP

Texas InstrumentsIn Stock: 1953TPS40070PWP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS40070PWPR is determined by the following critical parameters: buck topology function, single-phase output configuration, transistor driver output type, synchronous rectifier capability, and compatible package form factor. Substitute parts must maintain electrical compatibility within the specified voltage supply range, switching frequency capability, and duty cycle limits. Packaging format and mounting type are secondary considerations that may require board-level design adjustments.

The substitute parts are grouped into two categories:

Parametric Equivalents (Same Package): Parts that maintain identical or near-identical electrical specifications and use the same 16-HTSSOP package, enabling direct replacement with minimal or no design modification.

Manufacturer Recommended Equivalent (Different Package): Parts that meet the core functional requirements but utilize an alternative package form factor, requiring PCB layout and footprint adjustments.

Parameter Comparison

Engineering Selection Recommendations

TPS40077PWPR is the primary recommended substitute for new designs. This part maintains identical electrical specifications to the TPS40070PWPR, operates in the same 16-PowerTSSOP package, and holds Active product status, ensuring long-term availability and manufacturing support. The TPS40077PWPR is suitable for direct replacement in existing designs without PCB modifications.

TPS40071PWPR provides parametric equivalence with identical package and electrical characteristics. However, this part carries Not For New Designs status, limiting its suitability for new product development. It remains viable for legacy system maintenance and repair applications where supply continuity is required.

TPS40070PWP is functionally equivalent to the main part but differs in packaging format (Tube instead of Tape & Reel). This variant is appropriate for lower-volume applications or manual assembly processes. The part is in Last Time Buy status, similar to the TPS40070PWPR.

TPS53119RGTR is a manufacturer-recommended alternative that meets core functional requirements but operates within a reduced voltage supply range (4.5V ~ 25V) and lower maximum duty cycle (90%). This part uses a 16-VFQFN package, requiring PCB layout redesign. The TPS53119RGTR is suitable only for applications where the reduced specifications are acceptable and where package footprint changes can be accommodated. This part maintains Active status and is recommended for new designs when package constraints permit.

Frequently Asked Questions (FAQ)

Q: Can TPS40070PWPR be directly replaced with TPS40077PWPR without design changes?

A: Yes. The TPS40077PWPR is a direct pin-compatible replacement in the same 16-PowerTSSOP package with identical electrical specifications. No PCB modifications are required.

Q: What are the key differences between TPS40070PWPR and TPS53119RGTR?

A: The TPS53119RGTR operates within a lower voltage supply range (4.5V ~ 25V versus 4.5V ~ 28V) and has a lower maximum duty cycle (90% versus 93%). Additionally, it uses a 16-VFQFN package instead of 16-PowerTSSOP, requiring PCB footprint changes. The TPS53119RGTR is suitable only for applications compatible with these reduced specifications.

Q: Why is TPS40071PWPR marked as Not For New Designs?

A: The Not For New Designs status indicates that Texas Instruments is transitioning this part to end-of-life. While it remains available for existing applications, new product designs should utilize TPS40077PWPR or other Active-status alternatives to ensure long-term supply chain stability.

Q: What is the difference between TPS40070PWPR and TPS40070PWP?

A: Both parts are electrically identical with the same 16-PowerTSSOP package. The primary difference is packaging format: TPS40070PWPR is supplied in Tape & Reel format for automated assembly, while TPS40070PWP is supplied in Tube format for manual or lower-volume assembly processes.

Q: Is TPS53119RGTR suitable for applications requiring -40°C operation?

A: No. The TPS53119RGTR operates from -20°C to 85°C, whereas the TPS40070PWPR operates from -40°C to 85°C. Applications requiring -40°C minimum operating temperature must use TPS40070PWPR, TPS40071PWPR, TPS40077PWPR, or TPS40070PWP.

Q: Can TPS53119RGTR be used in a design originally specified for TPS40070PWPR?

A: Only if the application voltage supply does not exceed 25V and the maximum duty cycle requirement does not exceed 90%. The 16-VFQFN package also requires PCB redesign. Verify all electrical and thermal requirements before substitution.