Equivalent & Substitute Parts Reference for PT6444A

Part Overview

PT6444A from Texas Instruments is a DC-DC Converter, specifically a Non-Isolated Point-of-Load (PoL) module with a single output rated at 1.8V and maximum output current of 6A. The device operates with a 3.1V to 5.5V input voltage range. Product status is Obsolete, and there is an immediate need to identify suitable substitute components for continued production and maintenance. Substitute selection is based strictly on matching key electrical and mechanical parameters as provided.

Key Parameters

Manufacturer Part Number	Type	Number of Outputs	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output 1	Current - Output (Max)	Applications	Operating Temperature	Efficiency	Mounting Type	Package / Case	RoHS Status	REACH Status
PT6444A	Non-Isolated PoL Module	1	3.1V	5.5V	1.8V	6A	ITE (Commercial)	-40°C ~ 85°C	85%	Through Hole, Right Angle	12-SIP Module	ROHS3 Compliant	REACH Unaffected
TPS84610RKGR	Non-Isolated PoL Module	1	2.95V	6V	0.8~3.6V	6A	ITE (Commercial)	-40°C ~ 85°C	96%	Surface Mount	39-BQFN Exposed Pad	ROHS3 Compliant	REACH Unaffected

Substitute Part Grouping Explanation

Substitution logic is strictly based on the following matching parameters:

Type: Non-Isolated PoL Module DC-DC Converter
Number of Outputs: 1
Input Voltage Range: Overlapping and compatible minimum and maximum values
Output Voltage Range: Ability to supply 1.8V output
Output Current: 6A maximum supported
Application: ITE (Commercial)
Operating Temperature Range: -40°C to 85°C
RoHS and REACH compliance

Only parts with overlapping or matching electrical ranges, identical function and compliance status, and matching operational characteristics are considered.

Parameter Comparison

Parameter	PT6444A	TPS84610RKGR
Type	Non-Isolated PoL Module	Non-Isolated PoL Module
Number of Outputs	1	1
Voltage - Input (Min)	3.1V	2.95V
Voltage - Input (Max)	5.5V	6V
Voltage - Output 1	1.8V	0.8~3.6V
Current - Output (Max)	6A	6A
Applications	ITE (Commercial)	ITE (Commercial)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Efficiency	85%	96%
Mounting Type	Through Hole, Right Angle	Surface Mount
Package / Case	12-SIP Module	39-BQFN Exposed Pad
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

PT6444A is classified as Obsolete, whereas TPS84610RKGR is currently Active. Both are ROHS3 Compliant and REACH Unaffected. Substitute selection, based solely on these criteria, favors the available and compliant TPS84610RKGR for new designs and maintenance, recognizing changes in mounting and package formats.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting PT6444A?
A1: Substitution is determined by matching type, input/output voltage ranges, output current, application, operating temperature, RoHS status, and REACH status.

Q2: Does TPS84610RKGR meet the necessary electrical parameters?
A2: TPS84610RKGR supports an output range of 0.8–3.6V, allowing a 1.8V output, with the same 6A current rating and compatible input voltage range.

Q3: Are there package and mounting differences to consider?
A3: PT6444A uses a 12-SIP Module with Through Hole, Right Angle mounting, while TPS84610RKGR uses a 39-BQFN Exposed Pad Surface Mount package. Mechanical compatibility should be evaluated according to system requirements.

Q4: Do both parts comply with environmental and certification requirements?
A4: Both components are ROHS3 Compliant and REACH Unaffected.

Q5: Is substitute selection impacted by product status?
A5: PT6444A is Obsolete; TPS84610RKGR is Active, available for continued supply and production use.

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