TPS40054PWPR Buck Regulator Controller Equivalent & Substitute Parts

Part Overview

The TPS40054PWPR is a buck regulator positive output step-down DC-DC controller IC manufactured by Texas Instruments in a 16-HTSSOP package. This power management IC functions as a transistor driver for step-down topology applications with single output and single phase configuration. The TPS40054PWPR carries a "Not For New Designs" product status, making identification of equivalent substitute parts essential for ongoing production and design continuity. Equivalent parts maintain identical electrical and mechanical specifications while offering improved availability or active product status.

Substiute Parts

TPS40054PWPR

Texas InstrumentsIn Stock: 3570TPS40054PWPR Datasheet

Current PartRFQ

TPS40053PWPR

Texas InstrumentsIn Stock: 23091TPS40053PWPR 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

Equivalent substitution for the TPS40054PWPR is determined by strict parametric matching across the following critical criteria:

Electrical Equivalence Parameters:

• Voltage supply range: 8V ~ 40V
• Maximum duty cycle: 94%
• Synchronous rectifier capability: Yes
• Clock synchronization support: Yes
• Control feature set: Current Limit, Enable, Frequency Control, Soft Start
• Operating temperature range: -40°C ~ 85°C

Mechanical & Packaging Equivalence:

• Package type: 16-PowerTSSOP
• Physical dimensions: 0.173" × 4.40mm width
• Mounting type: Surface Mount

Compliance & Regulatory Equivalence:

• RoHS3 compliance
• Moisture sensitivity level: 2 (1 Year)
• REACH unaffected status
• ECCN: EAR99
• HTSUS: 8542.39.0001

The substitute parts TPS40053PWPR, TPS40055PWPR, and TPS40057PWPR maintain full parametric equivalence across all electrical, mechanical, and regulatory specifications. Variation in switching frequency specifications does not affect substitution eligibility, as frequency control is a supported feature in all parts.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

TPS40055PWPR and TPS40057PWPR are recommended as primary substitutes for the TPS40054PWPR. Both parts carry Active product status, ensuring long-term availability and continued manufacturer support. These parts maintain complete parametric equivalence with the original part across all electrical specifications, control features, and regulatory compliance requirements. Both support switching frequencies up to 1MHz and are available in identical 16-PowerTSSOP packaging.

Secondary Substitute (Not For New Designs Status):

TPS40053PWPR functions as a parametric equivalent with identical electrical and mechanical specifications. This part carries the same "Not For New Designs" status as the TPS40054PWPR. The primary distinction is a fixed switching frequency of 500kHz compared to the programmable up-to-1MHz capability of the primary substitutes. This part is suitable for direct replacement in existing designs where frequency control is not required or where 500kHz operation meets application requirements.

Compliance & Regulatory Alignment:

All substitute parts maintain ROHS3 compliance, identical moisture sensitivity levels (MSL 2, 1 Year), and equivalent regulatory certifications (REACH unaffected, ECCN EAR99, HTSUS 8542.39.0001). Pin-to-pin compatibility and functional equivalence are maintained across all substitute options.

Frequently Asked Questions (FAQ)

Q: Can TPS40053PWPR replace TPS40054PWPR in all applications?

A: TPS40053PWPR is a parametric equivalent with identical electrical specifications and package compatibility. The primary difference is fixed 500kHz switching frequency versus programmable up-to-1MHz operation in TPS40054PWPR. Substitution is valid for applications where 500kHz operation is acceptable or where frequency control is not required.

Q: What is the advantage of TPS40055PWPR and TPS40057PWPR over TPS40054PWPR?

A: TPS40055PWPR and TPS40057PWPR maintain identical electrical and mechanical specifications while carrying Active product status. This ensures continued manufacturer support, long-term availability, and compliance with current design standards. Both support programmable switching frequencies up to 1MHz, matching the TPS40054PWPR capability.

Q: Are all substitute parts pin-compatible with TPS40054PWPR?

A: Yes. All substitute parts use the 16-PowerTSSOP package with identical pinout and physical dimensions (0.173" × 4.40mm width). Direct PCB replacement is supported without layout modifications.

Q: Do substitute parts maintain the same control features?

A: Yes. All substitute parts include identical control features: Current Limit, Enable, Frequency Control, and Soft Start. Synchronous rectifier and clock synchronization capabilities are present in all parts.

Q: What is the impact of switching frequency differences between TPS40053PWPR and other substitutes?

A: TPS40053PWPR operates at fixed 500kHz, while TPS40054PWPR, TPS40055PWPR, and TPS40057PWPR support programmable frequencies up to 1MHz. All parts include frequency control features. Selection depends on application requirements for switching frequency flexibility and EMI characteristics.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts carry ROHS3 compliance certification with identical moisture sensitivity levels (MSL 2, 1 Year) and regulatory status (REACH unaffected, ECCN EAR99).

Q: Which substitute should be selected for new production designs?

A: TPS40055PWPR or TPS40057PWPR are recommended for new production designs due to Active product status. Both parts provide identical functionality with assured long-term availability and manufacturer support.