Equivalent & Substitute Parts Reference for PT6601B

Part Overview

The Texas Instruments PT6601B is a non-isolated Point-of-Load (PoL) DC DC converter module delivering 3.3V at up to 7A output, with an input voltage range of 4.5V to 6V. This module features remote On/Off capabilities and Over-Temperature Protection (OTP), is intended for ITE (commercial) applications, and uses a 14-SMD surface mount package with dimensions of 2.36" x 1.22" x 0.42". The PT6601B is classified as Obsolete, making it necessary to identify alternative models that meet equivalent electrical and mechanical parameters for continued design support or replacement needs.

Substiute Parts

PT6601B

Texas InstrumentsIn Stock: 859PT6601B Datasheet

Current PartRFQ

PTH08T240WAZ

Texas InstrumentsIn Stock: 1734PTH08T240WAZ Datasheet

MFR RecommendedRFQ

PTH04T240WAZ

Texas InstrumentsIn Stock: 1667PTH04T240WAZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PT6601B is governed by matching its essential electrical and mechanical parameters. The following key parameters determine valid substitutes for non-isolated PoL DC DC converter modules in this application:

• Module Type: Non-Isolated PoL
• Number of Outputs: 1
• Input Voltage Range
• Output Voltage Range
• Maximum Output Current
• Features (Remote On/Off, protection modes)
• Operating Temperature Range
• Mounting Type
• Package Style and Size
• Compliance and Environmental Status (RoHS, REACH)

Valid substitutes listed below provide equivalent or greater specification coverage within the defined parameter set.

Parameter Comparison

Engineering Selection Recommendations

The PT6601B is classified as Obsolete. Both PTH08T240WAZ and PTH04T240WAZ are Active Texas Instruments DC DC converter modules with ROHS3 compliance and unaffected REACH status. These substitutes maintain documented environmental and compliance equivalence. Select substitutes strictly based on product status and compliance where continued supply and environmental regulations adherence are required.

Frequently Asked Questions (FAQ)

Q: What are the key substitution criteria for replacing PT6601B with another part?
A: Key criteria include matching module type (Non-Isolated PoL), number of outputs, input and output voltage ranges, maximum output current, features, mounting type, operating temperature range, and environmental compliance status.

Q: Are the package dimensions the same between PT6601B and listed substitutes?
A: Package types are both SMD, but physical dimensions and pin configurations differ. Carefully review mechanical compatibility when designing or modifying PCBs.

Q: Are both substitute models suitable for applications requiring RoHS3 and REACH compliance?
A: Yes, both PTH08T240WAZ and PTH04T240WAZ are ROHS3 Compliant and REACH Unaffected.

Q: Does the substitute support the same output voltage as PT6601B?
A: PTH08T240WAZ supports 0.69V to 5.5V; PTH04T240WAZ supports 0.69V to 3.6V. 3.3V output is within these ranges.

Q: What should be considered regarding thermal and current performance?
A: Both substitutes provide higher maximum output current (10A) and broader or overlapping operating temperature ranges compared to PT6601B.