LP2985A-10DBVR Equivalent & Substitute Parts

Part Overview

The LP2985A-10DBVR is a linear voltage regulator IC from Texas Instruments designed for positive fixed 10V output applications. This Surface Mount device in SOT-23-5 package delivers 150mA output current with integrated protection features including over-current, over-temperature, and short-circuit protection. The part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is essential for design continuity, long-term supply chain planning, and ensuring component availability for production and maintenance cycles.

Substiute Parts

LP2985A-10DBVR

Texas InstrumentsIn Stock: 60384LP2985A-10DBVR Datasheet

Current PartRFQ

TPS7A2401DBVR

Texas InstrumentsIn Stock: 19846TPS7A2401DBVR Datasheet

MFR RecommendedRFQ

LP2985-10DBVR

Texas InstrumentsIn Stock: 35137LP2985-10DBVR Datasheet

Parametric EquivalentRFQ

LP2985-10DBVT

Texas InstrumentsIn Stock: 20120LP2985-10DBVT Datasheet

Parametric EquivalentRFQ

LP2985A-10DBVT

Texas InstrumentsIn Stock: 4131LP2985A-10DBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2985A-10DBVR are categorized based on electrical and mechanical compatibility within the linear voltage regulator product family:

Parametric Equivalents (Identical Electrical Specifications): These parts maintain the same fixed 10V output, 150mA current rating, 16V maximum input voltage, and identical protection features. They differ only in packaging designation (tape reel variant) or minor manufacturing revision codes:

• LP2985-10DBVR
• LP2985-10DBVT
• LP2985A-10DBVT

These parts are direct substitutes when the same electrical performance and SOT-23-5 package footprint are required.

Manufacturer Recommended Upgrade (Enhanced Performance): The TPS7A2401DBVR is designated as the manufacturer-recommended alternative. While it operates in the same SOT-23-5 package and maintains positive output configuration, it differs in key parameters:

• Output Type: Adjustable (vs. Fixed 10V)
• Current - Output: 200mA (vs. 150mA)
• Voltage - Input (Max): 18V (vs. 16V)
• Voltage Dropout (Max): 0.25V @ 200mA (vs. 0.58V @ 150mA)
• Current - Quiescent (Iq): 4.5 µA (vs. 95 µA)

This part requires design modification to implement the adjustable output configuration but offers improved performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required): Select LP2985-10DBVR, LP2985-10DBVT, or LP2985A-10DBVT when maintaining the existing fixed 10V output specification and 150mA current requirement. All three parts are parametric equivalents with identical electrical performance and SOT-23-5 package compatibility. The choice between these variants depends on packaging format availability (Cut Tape vs. Digi-Reel) and inventory status. All parts maintain ROHS3 compliance and MSL Level 1 rating.

For Long-Term Supply Continuity: The TPS7A2401DBVR is the manufacturer-recommended active product for new designs and long-term availability. This part requires circuit modification to implement adjustable output configuration but offers superior performance characteristics: reduced quiescent current (4.5 µA vs. 95 µA), lower dropout voltage (0.25V vs. 0.58V), higher output current capability (200mA vs. 150mA), and enhanced PSRR (75dB vs. 45dB). The TPS7A2401DBVR maintains Active product status, ensuring continued manufacturing support and availability.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications. MSL Level 1 rating across all parts eliminates moisture sensitivity constraints during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can LP2985-10DBVR be used as a direct replacement for LP2985A-10DBVR? A: Yes. LP2985-10DBVR is a parametric equivalent with identical electrical specifications, output voltage (10V fixed), current rating (150mA), input voltage range (16V max), and protection features. Both use the SOT-23-5 package. The difference is in the manufacturing revision code (A vs. non-A variant).

Q: What is the difference between LP2985-10DBVT and LP2985-10DBVR? A: Both parts have identical electrical specifications and performance. The difference is in the packaging format: DBVR indicates Cut Tape packaging, while DBVT also indicates Cut Tape. These designations reflect supplier packaging variants and do not affect electrical compatibility or PCB footprint.

Q: Why is TPS7A2401DBVR listed as a substitute if it has different electrical specifications? A: TPS7A2401DBVR is the manufacturer-recommended upgrade path for the LP2985A-10DBVR product line. While it requires design modification due to adjustable output configuration, it offers improved performance (lower quiescent current, reduced dropout voltage, higher current capability) and maintains Active product status for long-term supply assurance. It is suitable for new designs or redesigns where the enhanced specifications provide system benefits.

Q: Are all substitute parts compatible with the same PCB footprint? A: Yes. All listed substitute parts use the SOT-23-5 package (SC-74A, SOT-753), ensuring identical PCB footprint and pin compatibility. No layout modifications are required for parametric equivalents (LP2985-10DBVR, LP2985-10DBVT, LP2985A-10DBVT).

Q: What is the product status difference between LP2985A-10DBVR and TPS7A2401DBVR? A: LP2985A-10DBVR is classified as Last Time Buy, indicating end-of-life status with limited future availability. TPS7A2401DBVR is classified as Active, meaning it is in current production with ongoing manufacturer support and long-term availability. For new designs or long-term production requirements, TPS7A2401DBVR is the recommended choice.

Q: Do all substitute parts meet the same regulatory and compliance standards? A: Yes. All substitute parts are ROHS3 compliant, REACH Unaffected, and carry MSL Level 1 rating. They meet the same regulatory requirements for industrial, commercial, and consumer applications.

Q: Can I use TPS7A2401DBVR in an existing design without circuit modifications? A: No. TPS7A2401DBVR has adjustable output voltage (1.24V ~ 17.75V) compared to the fixed 10V output of LP2985A-10DBVR. To use this part, the output voltage must be set to 10V using external resistor dividers, requiring circuit redesign. Parametric equivalents (LP2985-10DBVR, LP2985-10DBVT, LP2985A-10DBVT) are suitable for direct replacement without modifications.