TPS40053PWPR Equivalent & Substitute Parts

Part Overview

The TPS40053PWPR 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. The TPS40053PWPR is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this controller is already deployed.

Substiute Parts

TPS40053PWPR

Texas InstrumentsIn Stock: 23091TPS40053PWPR Datasheet

Current PartRFQ

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

Substitute parts for the TPS40053PWPR are determined by strict equivalence across the following critical parameters:

• Topology & Function: All substitutes maintain buck (step-down) topology with transistor driver output type
• Package & Pinout: All substitutes use 16-PowerTSSOP package (0.173", 4.40mm Width)
• Electrical Specifications: All substitutes support 8V ~ 40V supply voltage range, 94% maximum duty cycle, synchronous rectification, and clock synchronization
• Control Features: All substitutes include current limit, enable, frequency control, and soft start capabilities
• Operating Temperature: All substitutes operate across -40°C ~ 85°C range
• Compliance: All substitutes maintain ROHS3 compliance and REACH unaffected status

The primary differentiator among substitutes is switching frequency capability. The TPS40053PWPR operates at 500kHz fixed switching frequency, while substitute parts TPS40054PWPR, TPS40055PWPR, and TPS40057PWPR support up to 1MHz switching frequency, providing enhanced flexibility for frequency-dependent applications.

Parameter Comparison

Engineering Selection Recommendations

For End-of-Life Replacement: The TPS40053PWPR is classified as "Not For New Designs." When replacement is required, TPS40055PWPR and TPS40057PWPR are preferred substitutes due to their "Active" product status, ensuring long-term availability and manufacturing support.

For Frequency-Flexible Applications: TPS40054PWPR, TPS40055PWPR, and TPS40057PWPR support switching frequencies up to 1MHz, compared to the TPS40053PWPR's fixed 500kHz operation. This capability allows optimization of output filter size and efficiency in applications where frequency adjustment is beneficial.

Compliance & Regulatory: All substitute parts maintain identical ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity in existing designs.

Inventory & Availability: TPS40055PWPR (21,356 pcs) and TPS40057PWPR (31,300 pcs) demonstrate higher stock levels compared to TPS40053PWPR (23,055 pcs) and TPS40054PWPR (3,486 pcs), supporting supply chain reliability for ongoing production.

Frequently Asked Questions (FAQ)

Q: Can TPS40054PWPR, TPS40055PWPR, or TPS40057PWPR be used as direct replacements for TPS40053PWPR?

A: Yes. All three parts are parametric equivalents sharing identical package, pinout, supply voltage range, duty cycle, control features, and operating temperature specifications. The 16-PowerTSSOP package ensures mechanical and electrical compatibility.

Q: What is the primary difference between TPS40053PWPR and its substitutes?

A: The TPS40053PWPR operates at a fixed 500kHz switching frequency, while TPS40054PWPR, TPS40055PWPR, and TPS40057PWPR support variable switching frequencies up to 1MHz. This provides greater design flexibility for applications requiring frequency optimization.

Q: Why should I choose TPS40055PWPR or TPS40057PWPR over TPS40054PWPR?

A: TPS40055PWPR and TPS40057PWPR carry "Active" product status, indicating ongoing manufacturing support and long-term availability. TPS40054PWPR is classified as "Not For New Designs," similar to the original TPS40053PWPR. For new production or long-term supply assurance, Active-status parts are recommended.

Q: Are there any package or pinout differences between these parts?

A: No. All four parts use the identical 16-PowerTSSOP package (0.173", 4.40mm Width) with surface mount configuration. No PCB layout modifications are required for substitution.

Q: Do all substitute parts maintain the same compliance certifications?

A: Yes. All parts are ROHS3 compliant and REACH unaffected, maintaining regulatory equivalence with the original TPS40053PWPR.

Q: What is the moisture sensitivity level for these parts?

A: All parts carry MSL 2 (1 Year) rating, indicating identical moisture handling and storage requirements.