REG102GA-2.85 Equivalent & Substitute Parts

Part Overview

The REG102GA-2.85 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This Surface Mount device delivers 250mA output current with a fixed 2.85V output and is housed in a SOT-223-6 package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute components is essential for design continuity and long-term supply chain planning.

Substiute Parts

REG102GA-2.85

Texas InstrumentsIn Stock: 3108REG102GA-2.85 Datasheet

Current PartRFQ

TPS7A2501DRVR

Texas InstrumentsIn Stock: 17394TPS7A2501DRVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the REG102GA-2.85 is based on the following critical parameters:

• Output Configuration & Type: Positive fixed output at 2.85V
• Current Capacity: Minimum 250mA output current requirement
• Input Voltage Range: Maximum input voltage of 10V or higher
• Dropout Voltage: Performance at or below 0.27V @ 250mA
• Package Compatibility: Surface Mount with thermal performance suitable for SOT-223-6 or equivalent
• Regulatory Compliance: ROHS3 compliance and EAR99 classification
• Operating Temperature Range: -40°C to 85°C minimum

The TPS7A2501DRVR qualifies as a manufacturer-recommended substitute based on its ability to deliver the required output voltage and current specifications while maintaining regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The TPS7A2501DRVR is the manufacturer-recommended substitute for the REG102GA-2.85. Selection of this alternative is justified by the following factors:

• Product Lifecycle: The REG102GA-2.85 is in Last Time Buy status, while the TPS7A2501DRVR is Active, ensuring long-term availability.
• Regulatory Compliance: Both devices maintain ROHS3 compliance and EAR99 classification, meeting procurement requirements.
• Performance Superiority: The substitute offers improved quiescent current (4.5 µA vs. 500 µA), extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C), and higher output current capacity (300mA vs. 250mA).
• Design Considerations: The TPS7A2501DRVR requires external resistor divider network configuration to achieve the fixed 2.85V output and uses a different package footprint (6-WSON vs. SOT-223-6), necessitating PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can the TPS7A2501DRVR directly replace the REG102GA-2.85 without circuit modifications?

A: No. While both devices are positive linear regulators from Texas Instruments, the TPS7A2501DRVR is adjustable and requires external resistor divider network configuration to set the 2.85V output. Additionally, the package footprint differs (6-WSON vs. SOT-223-6), requiring PCB redesign.

Q: What is the primary reason for substitution?

A: The REG102GA-2.85 is in Last Time Buy status, indicating discontinued production. The TPS7A2501DRVR is an active product with equivalent or superior electrical performance and regulatory compliance.

Q: Does the TPS7A2501DRVR meet the current output requirement?

A: Yes. The substitute provides 300mA output current, exceeding the 250mA requirement of the original part.

Q: Are there thermal or reliability differences between the packages?

A: The 6-WSON (2x2) package used by the TPS7A2501DRVR includes an exposed pad for improved thermal dissipation compared to the SOT-223-6 package. This provides enhanced thermal performance for the same power dissipation levels.

Q: What compliance certifications apply to both parts?

A: Both the REG102GA-2.85 and TPS7A2501DRVR are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: Is the quiescent current difference significant?

A: Yes. The TPS7A2501DRVR draws 4.5 µA quiescent current compared to 500 µA for the REG102GA-2.85. This 100x reduction improves battery life and reduces power dissipation in standby conditions.