PTH05060YAST Equivalent & Substitute Parts

Part Overview

The PTH05060YAST is a non-isolated Point-of-Load (PoL) module DC-DC converter manufactured by Texas Instruments, designed for commercial Information Technology Equipment (ITE) applications. This component features a single output with adjustable voltage range of 0.55V to 1.8V, rated for 10A maximum output current, and operates from a 4.5V to 5.5V input supply.

The PTH05060YAST carries an obsolete product status. Locating equivalent or substitute components is necessary to support ongoing system maintenance, design updates, and procurement requirements where original inventory becomes unavailable.

Substiute Parts

PTH05060YAST

Texas InstrumentsIn Stock: 2308PTH05060YAST Datasheet

Current PartRFQ

PTH05060WAZ

Texas InstrumentsIn Stock: 1486PTH05060WAZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PTH05060YAST is based on the following critical parameters that must align between the main part and substitute components:

Input Voltage Compatibility: Both the main part and substitute must accept the same input voltage range (4.5V to 5.5V) to ensure direct integration into existing power distribution architectures.

Output Current Rating: The substitute must maintain the 10A maximum output current specification to support the same load requirements.

Physical Form Factor: The substitute must use the same 10-SMD Module package and maintain identical or compatible physical dimensions (0.99" L x 0.62" W x 0.38" H) to fit within existing PCB layouts and thermal management designs.

Mounting Technology: Both components must use Surface Mount technology to ensure compatibility with current assembly processes.

Operating Temperature Range: The substitute must support the full -40°C to 85°C operating temperature range required for ITE commercial applications.

Output Voltage Range: While the PTH05060YAST provides 0.55V to 1.8V output, the substitute may offer an extended or different output voltage range provided the input and output current specifications remain compatible with the application requirements.

The PTH05060WAZ meets these substitution criteria as a Texas Instruments component within the same PTH05 base product family, sharing identical input voltage, output current, package type, and operating temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

The PTH05060WAZ serves as the active substitute for the obsolete PTH05060YAST. Both components share identical input voltage specifications (4.5V to 5.5V), output current ratings (10A), physical dimensions, and operating temperature ranges, establishing direct compatibility at the system integration level.

The PTH05060WAZ offers several advantages over the PTH05060YAST:

Product Status: The PTH05060WAZ maintains active product status with Texas Instruments, ensuring long-term availability and continued manufacturer support. The PTH05060YAST is obsolete and subject to inventory depletion.

Regulatory Compliance: The PTH05060WAZ is ROHS3 compliant, meeting current environmental and regulatory requirements for commercial electronics. The PTH05060YAST is RoHS non-compliant, which may present procurement and regulatory challenges in certain markets and applications.

Performance Characteristics: The PTH05060WAZ delivers 94% efficiency compared to 86% for the PTH05060YAST, resulting in reduced thermal dissipation and improved power conversion performance.

Feature Set: The PTH05060WAZ includes Over-Temperature Protection (OTP) in addition to the Remote On/Off, OCP, and UVLO features present in the PTH05060YAST, providing enhanced system protection.

Output Voltage Range: The PTH05060WAZ supports an extended output voltage range of 0.8V to 3.6V. Applications requiring output voltages below 0.8V must retain the PTH05060YAST or identify alternative solutions outside the PTH05 family.

Frequently Asked Questions (FAQ)

Q: Can the PTH05060WAZ directly replace the PTH05060YAST in existing designs?

A: Direct replacement is possible for applications where the output voltage requirement falls within the 0.8V to 3.6V range of the PTH05060WAZ. The identical input voltage range (4.5V to 5.5V), output current rating (10A), package type (10-SMD Module), and physical dimensions ensure mechanical and electrical compatibility. Applications requiring output voltages below 0.8V cannot use the PTH05060WAZ as a substitute.

Q: What is the significance of the different output voltage ranges?

A: The PTH05060YAST provides adjustable output from 0.55V to 1.8V, while the PTH05060WAZ extends this range to 0.8V to 3.6V. The lower limit of the PTH05060WAZ (0.8V) is higher than the PTH05060YAST minimum (0.55V). Systems designed for output voltages between 0.55V and 0.8V require the PTH05060YAST or alternative components. Systems operating within the 0.8V to 1.8V overlap range can use either component.

Q: How do the efficiency differences impact system design?

A: The PTH05060WAZ operates at 94% efficiency compared to 86% for the PTH05060YAST. This 8 percentage point improvement reduces power dissipation and heat generation. In high-current applications (10A), this translates to lower thermal load on the converter module and potentially reduced cooling requirements. Thermal management designs based on the PTH05060YAST may require adjustment when transitioning to the PTH05060WAZ.

Q: What is the impact of RoHS compliance status?

A: The PTH05060WAZ is ROHS3 compliant, meeting current environmental regulations for commercial electronics in most markets. The PTH05060YAST is RoHS non-compliant, which may restrict its use in certain regions or applications subject to environmental regulations. New designs should prioritize the ROHS3-compliant PTH05060WAZ where output voltage requirements permit.

Q: Are there packaging or handling differences between these components?

A: The PTH05060YAST has Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions. The PTH05060WAZ has MSL 3 (168 Hours), requiring controlled storage and handling conditions. Components with MSL 3 must be stored in dry conditions and used within 168 hours of exposure to ambient humidity. Procurement and assembly processes must account for this difference in moisture sensitivity requirements.

Q: Do both components support the same features?

A: Both components include Remote On/Off, OCP (Over-Current Protection), and UVLO (Under-Voltage Lock-Out) features. The PTH05060WAZ adds OTP (Over-Temperature Protection), providing enhanced thermal management. Applications relying on OTP functionality must use the PTH05060WAZ or identify alternative solutions.

Q: What are the base product numbers for these components?

A: The PTH05060YAST belongs to the PTH05060Y series within the PTH05 base product family. The PTH05060WAZ belongs to the PTH05060W series within the same PTH05 base product family. Both components share the same fundamental PoL module architecture and design lineage.