TPS40050PWPR Equivalent & Substitute Parts

Part Overview

The TPS40050PWPR 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 an 8V to 40V supply voltage range with a 500kHz switching frequency and 94% maximum duty cycle.

The TPS40050PWPR carries a "Not For New Designs" product status, indicating it is obsolete or in end-of-life phase. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this controller is already deployed in existing systems.

Substiute Parts

TPS40050PWPR

Texas InstrumentsIn Stock: 2125TPS40050PWPR Datasheet

Current PartRFQ

TPS40053PWPR

Texas InstrumentsIn Stock: 23091TPS40053PWPR Datasheet

Parametric EquivalentRFQ

TPS40054PWPR

Texas InstrumentsIn Stock: 3570TPS40054PWPR Datasheet

Parametric EquivalentRFQ

TPS40055PWPR

Texas InstrumentsIn Stock: 21419TPS40055PWPR Datasheet

Parametric EquivalentRFQ

TPS40057PWPR

Texas InstrumentsIn Stock: 31327TPS40057PWPR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS40050PWPR is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Package / Case: 16-PowerTSSOP (0.173", 4.40mm Width)
• Supplier Device Package: 16-HTSSOP
• Output Type: Transistor Driver
• Function: Step-Down
• Output Configuration: Positive
• Topology: Buck
• Number of Outputs: 1
• Output Phases: 1
• Voltage - Supply (Vcc/Vdd): 8V ~ 40V
• Duty Cycle (Max): 94%
• Synchronous Rectifier: Yes
• Clock Sync: Yes
• Control Features: Current Limit, Enable, Frequency Control, Soft Start
• Operating Temperature: -40°C ~ 85°C (TA)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 2 (1 Year)
• REACH Status: REACH Unaffected

All four substitute parts (TPS40053PWPR, TPS40054PWPR, TPS40055PWPR, TPS40057PWPR) meet these equivalence criteria. Variations in switching frequency (500kHz versus up to 1MHz) and product status do not disqualify substitution eligibility based on the electrical and mechanical parameters provided.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are electrically and mechanically equivalent to the TPS40050PWPR based on the parameters provided. Selection between substitutes should be based on the following criteria:

Product Status Consideration: TPS40055PWPR and TPS40057PWPR carry "Active" product status, indicating ongoing manufacturer support and availability for future production. TPS40050PWPR and TPS40053PWPR are marked "Not For New Designs," reflecting their obsolete or end-of-life status.

Compliance and Certification: All parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 2 (1 Year) moisture sensitivity ratings, ensuring regulatory and environmental compatibility across all options.

Inventory Availability: TPS40057PWPR offers the highest inventory level at 31,300 pieces, followed by TPS40055PWPR at 21,356 pieces. TPS40053PWPR provides 23,055 pieces, while TPS40054PWPR has the lowest availability at 3,486 pieces.

Switching Frequency Variation: TPS40054PWPR, TPS40055PWPR, and TPS40057PWPR support switching frequencies up to 1MHz, compared to the fixed 500kHz of TPS40050PWPR and TPS40053PWPR. This parameter difference does not affect substitution eligibility but may influence circuit performance characteristics in specific applications.

Frequently Asked Questions (FAQ)

Q: Can TPS40055PWPR or TPS40057PWPR directly replace TPS40050PWPR in existing designs?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications provided. Pin configuration, package dimensions, supply voltage range, output topology, and control features are identical. Direct PCB substitution is supported without circuit modification.

Q: What is the significance of "Not For New Designs" versus "Active" product status?

A: "Not For New Designs" indicates the part is obsolete or in end-of-life phase, with limited future availability and no new feature development. "Active" status indicates the part is in current production with ongoing manufacturer support. For long-term supply chain stability, TPS40055PWPR or TPS40057PWPR are preferred over TPS40050PWPR or TPS40053PWPR.

Q: Are there differences in switching frequency between these parts?

A: TPS40050PWPR and TPS40053PWPR operate at a fixed 500kHz switching frequency. TPS40054PWPR, TPS40055PWPR, and TPS40057PWPR support switching frequencies up to 1MHz. This variation does not prevent substitution but may affect output ripple, component sizing, and thermal performance in the application circuit.

Q: Do all parts share the same 16-HTSSOP package?

A: Yes. All five parts use the identical 16-PowerTSSOP (0.173", 4.40mm Width) package with 16-HTSSOP supplier device package designation. PCB footprint compatibility is guaranteed across all substitutes.

Q: What packaging options are available for these parts?

A: TPS40050PWPR is supplied in Tape & Reel (TR) packaging. TPS40053PWPR packaging is not specified in the provided data. TPS40054PWPR, TPS40055PWPR, and TPS40057PWPR are available in Cut Tape (CT) & Digi-Reel® packaging. Verify packaging requirements with your procurement process before finalizing part selection.

Q: Are all parts RoHS3 compliant?

A: Yes. All five parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.