REG102GA-3 Equivalent & Substitute Parts

Part Overview

The REG102GA-3 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3V output applications with 250mA current capacity in SOT-223-6 surface mount packaging. This device is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for applications requiring compatible voltage regulation functionality.

Key Parameters

Parameter	REG102GA-3
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Fixed)	3V
Current - Output	250mA
Voltage - Input (Max)	10V
Voltage Dropout (Max)	0.27V @ 250mA
Package / Case	SOT-223-6
Operating Temperature	-40°C ~ 85°C
Product Status	Last Time Buy
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the REG102GA-3 is based on the following critical parameters:

Output Configuration & Type: Positive fixed output voltage regulation capability
Voltage Output Level: 3V fixed output (or adjustable to 3V equivalent)
Current Capacity: Minimum 250mA output current requirement
Input Voltage Range: Maximum input voltage tolerance of at least 10V
Dropout Voltage: Low dropout performance for efficient regulation
Package Compatibility: Surface mount technology with electrical pin compatibility
Regulatory Compliance: ROHS3 compliance and equivalent certifications
Thermal Performance: Operating temperature range suitable for -40°C ~ 85°C minimum

The TPS7A2501DRVR qualifies as a substitute based on its ability to be configured for 3V fixed output, superior current capacity (300mA), higher input voltage tolerance (18V), and enhanced performance characteristics while maintaining surface mount implementation and regulatory compliance.

Parameter Comparison

Parameter	REG102GA-3	TPS7A2501DRVR	Notes
Manufacturer	Texas Instruments	Texas Instruments	Same manufacturer
Output Configuration	Positive	Positive	Identical
Output Type	Fixed (3V)	Adjustable (1.24V ~ 17.66V)	Substitute is adjustable; can be configured to 3V
Current - Output	250mA	300mA	Substitute provides higher capacity
Voltage - Input (Max)	10V	18V	Substitute accepts higher input voltage
Voltage Dropout (Max)	0.27V @ 250mA	0.34V @ 300mA	Slightly higher dropout in substitute
Current - Quiescent (Iq)	500 µA	4.5 µA	Substitute has significantly lower quiescent current
PSRR	65dB (120Hz)	75dB ~ 52dB (10Hz ~ 1kHz)	Comparable power supply rejection ratio
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C (TJ)	Substitute supports extended temperature range
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	SOT-223-6	6-WDFN Exposed Pad	Different packages; PCB layout modification required
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical compliance
Product Status	Last Time Buy	Active	Substitute is actively manufactured

Engineering Selection Recommendations

The TPS7A2501DRVR is the manufacturer-recommended substitute for the REG102GA-3. Selection of this substitute is supported by the following engineering factors:

Product Status: The REG102GA-3 is Last Time Buy; the TPS7A2501DRVR is Active, ensuring long-term availability and supply chain continuity.
Regulatory Compliance: Both devices maintain ROHS3 compliance and equivalent certifications (REACH Unaffected, EAR99 ECCN classification).
Functional Equivalence: The TPS7A2501DRVR can be configured for fixed 3V output through external resistor divider networks, providing functional equivalence to the fixed-output REG102GA-3.
Performance Enhancement: The substitute offers superior specifications including higher output current capacity (300mA vs. 250mA), extended input voltage range (18V vs. 10V), and lower quiescent current (4.5 µA vs. 500 µA).
Thermal Performance: Extended operating temperature range (-40°C ~ 125°C) exceeds the original device requirements.
Package Consideration: The change from SOT-223-6 to 6-WDFN requires PCB layout modification and footprint redesign.

Frequently Asked Questions (FAQ)

Q: Can the TPS7A2501DRVR directly replace the REG102GA-3 without circuit modifications?

A: No. While functionally equivalent, the TPS7A2501DRVR requires external resistor divider networks to configure the adjustable output to 3V, whereas the REG102GA-3 provides fixed 3V output. Additionally, the package change from SOT-223-6 to 6-WDFN requires PCB footprint redesign.

Q: What is the primary reason for substitution?

A: The REG102GA-3 is Last Time Buy status, indicating end-of-life production. The TPS7A2501DRVR is an active product from the same manufacturer, ensuring continued availability and supply chain reliability.

Q: Are there compliance or certification differences between these devices?

A: No. Both devices are ROHS3 compliant, REACH Unaffected, and classified under EAR99 ECCN. Regulatory compliance is equivalent.

Q: How does the package change affect implementation?

A: The REG102GA-3 uses SOT-223-6 surface mount packaging, while the TPS7A2501DRVR uses 6-WDFN Exposed Pad packaging. This requires new PCB footprint design, trace routing modifications, and thermal management considerations for the exposed pad.

Q: What are the key performance differences?

A: The TPS7A2501DRVR provides higher output current (300mA vs. 250mA), accepts higher input voltage (18V vs. 10V), and operates across an extended temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C). Quiescent current is significantly lower (4.5 µA vs. 500 µA), improving power efficiency in low-power applications.

Q: Is external configuration required for the substitute?

A: Yes. The TPS7A2501DRVR is an adjustable regulator. To achieve 3V fixed output equivalent to the REG102GA-3, external resistor divider networks must be added to the feedback network. Refer to the TPS7A2501DRVR datasheet for configuration guidance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message