REG102GA-A Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The REG102GA-A is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This Surface Mount device in SOT-223-6 package delivers 250mA output current with a maximum input voltage of 10V and adjustable output range from 2.5V to 5.5V. The device is classified as Last Time Buy, indicating end-of-life status. Finding equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs and long-term support.

Key Parameters

Parameter	REG102GA-A
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Package / Case	SOT-223-6
Output Configuration	Positive
Output Type	Adjustable
Number of Regulators	1
Voltage - Input (Max)	10V
Voltage - Output (Min/Fixed)	2.5V
Voltage - Output (Max)	5.5V
Current - Output	250mA
Voltage Dropout (Max)	0.27V @ 250mA
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Product Status	Last Time Buy
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the REG102GA-A is based on the following critical electrical and mechanical parameters:

Functional Compatibility Criteria:

Output configuration must be Positive
Output type must be Adjustable
Single regulator configuration (1 output)
Surface Mount technology requirement

Electrical Performance Criteria:

Output current capability must meet or exceed 250mA
Input voltage rating must accommodate maximum 10V operation
Output voltage range must encompass or exceed 2.5V to 5.5V adjustable range
Dropout voltage performance at rated current
Operating temperature range must support -40°C minimum

Mechanical Criteria:

Package must be compatible with SOT-223-6 footprint or provide equivalent pinout compatibility
RoHS3 compliance required

The TPS7A2501DRVR qualifies as a manufacturer-recommended substitute based on these parameters, offering enhanced specifications while maintaining functional compatibility with the REG102GA-A application space.

Parameter Comparison

Parameter	REG102GA-A	TPS7A2501DRVR	Compatibility Notes
Manufacturer	Texas Instruments	Texas Instruments	Same manufacturer
Output Configuration	Positive	Positive	Match
Output Type	Adjustable	Adjustable	Match
Number of Regulators	1	1	Match
Voltage - Input (Max)	10V	18V	Substitute exceeds requirement
Voltage - Output (Min/Fixed)	2.5V	1.24V	Substitute provides lower minimum
Voltage - Output (Max)	5.5V	17.66V	Substitute provides higher maximum
Current - Output	250mA	300mA	Substitute exceeds requirement
Voltage Dropout (Max)	0.27V @ 250mA	0.34V @ 300mA	Slightly higher dropout at higher current
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	Substitute supports extended range
Mounting Type	Surface Mount	Surface Mount	Match
Package / Case	SOT-223-6	6-WDFN Exposed Pad	Different package; PCB layout redesign required
Product Status	Last Time Buy	Active	Substitute is actively manufactured
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match

Engineering Selection Recommendations

The TPS7A2501DRVR is the manufacturer-recommended substitute for the REG102GA-A. Selection should be based on the following factors:

Product Status Consideration: The REG102GA-A is designated Last Time Buy, indicating discontinued production. The TPS7A2501DRVR maintains Active status with 17,300 units in stock, ensuring long-term availability and supply chain continuity.

Compliance Alignment: Both devices maintain ROHS3 compliance and EAR99 ECCN classification, satisfying regulatory requirements for equivalent applications.

Electrical Specification Advantage: The TPS7A2501DRVR provides superior electrical performance with higher input voltage rating (18V vs. 10V), extended output current capability (300mA vs. 250mA), and broader operating temperature range (-40°C to 125°C vs. -40°C to 85°C). These enhancements provide design margin for existing applications.

Package Consideration: The substitute uses 6-WDFN Exposed Pad packaging instead of SOT-223-6. This requires PCB layout redesign and thermal management evaluation. The exposed pad in the WDFN package provides improved thermal performance compared to SOT-223-6.

Moisture Sensitivity: The TPS7A2501DRVR has MSL 1 (Unlimited) versus MSL 2 (1 Year) for the REG102GA-A, indicating superior moisture resistance and extended shelf life.

Frequently Asked Questions (FAQ)

Q: Can the TPS7A2501DRVR directly replace the REG102GA-A without PCB modification?

A: No. While both devices are positive adjustable linear regulators from Texas Instruments, the TPS7A2501DRVR uses 6-WDFN Exposed Pad packaging versus the SOT-223-6 package of the REG102GA-A. PCB layout redesign is required. Pinout compatibility must be verified against device datasheets before implementation.

Q: What are the key electrical differences between these devices?

A: The TPS7A2501DRVR exceeds REG102GA-A specifications in input voltage rating (18V vs. 10V), output current (300mA vs. 250mA), and operating temperature range (-40°C to 125°C vs. -40°C to 85°C). Output voltage adjustment range is broader (1.24V to 17.66V vs. 2.5V to 5.5V). Dropout voltage is slightly higher at 0.34V versus 0.27V.

Q: Is the TPS7A2501DRVR suitable for applications currently using the REG102GA-A?

A: The TPS7A2501DRVR is functionally compatible for applications requiring positive adjustable linear regulation within the REG102GA-A's original specifications. The substitute's enhanced ratings provide design margin. PCB redesign and thermal analysis are necessary due to package change.

Q: What is the significance of the different package types?

A: SOT-223-6 is a legacy 6-pin package with limited thermal performance. 6-WDFN Exposed Pad is a modern package with superior thermal dissipation through the exposed pad connection. This improves thermal management but requires different PCB layout and assembly processes.

Q: Are both devices RoHS compliant?

A: Yes. Both the REG102GA-A and TPS7A2501DRVR are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for equivalent applications.

Q: Why is the REG102GA-A designated Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued this product line. The TPS7A2501DRVR represents the active replacement in Texas Instruments' product portfolio, ensuring continued availability and support for new designs and production continuity.

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