LP3985ITL-2.5 Equivalent & Substitute Parts

Part Overview

The LP3985ITL-2.5 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device delivers a fixed positive 2.5V output at 150mA with a maximum dropout voltage of 0.1V. The part is currently marked as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement.

Substiute Parts

LP3985ITL-2.5

Texas InstrumentsIn Stock: 1654LP3985ITL-2.5 Datasheet

Current PartRFQ

LP3985ITL-2.5/NOPB

Texas InstrumentsIn Stock: 1700LP3985ITL-2.5/NOPB Datasheet

Parametric EquivalentRFQ

LP3985ITLX-2.5/NOPB

Texas InstrumentsIn Stock: 3492LP3985ITLX-2.5/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP3985ITL-2.5 are identified based on strict parametric equivalence. The following electrical and mechanical parameters must match or remain within specification:

• Output voltage: 2.5V fixed
• Output current capability: 150mA
• Maximum input voltage: 6V
• Dropout voltage: 0.1V @ 150mA
• Quiescent current: 150 µA
• Package: 5-DSBGA (1.41x1.08)
• Operating temperature range: -40°C ~ 125°C
• Protection features: Over Current, Over Temperature, Short Circuit
• Control features: Enable function

Both substitute parts maintain identical electrical specifications and physical packaging, differing only in product status and RoHS compliance certification.

Parameter Comparison

Engineering Selection Recommendations

For new designs and procurement, LP3985ITL-2.5/NOPB or LP3985ITLX-2.5/NOPB are the recommended alternatives to the obsolete LP3985ITL-2.5. Both substitute parts are active products with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

LP3985ITLX-2.5/NOPB offers higher inventory availability (3447 pcs) compared to LP3985ITL-2.5/NOPB (1683 pcs), making it the preferred choice for volume procurement. Both parts are supplied in Tape & Reel format, standard for automated assembly processes.

The original LP3985ITL-2.5 in bulk packaging is no longer recommended for new applications due to obsolete status and lack of RoHS compliance.

Frequently Asked Questions (FAQ)

Q: Can LP3985ITL-2.5/NOPB directly replace LP3985ITL-2.5?

A: Yes. Both parts are parametrically identical in electrical performance and physical packaging. The primary differences are product status (active vs. obsolete) and RoHS certification (ROHS3 compliant vs. non-compliant). The /NOPB suffix indicates lead-free, halogen-free packaging.

Q: What is the difference between LP3985ITL-2.5/NOPB and LP3985ITLX-2.5/NOPB?

A: Both parts are electrically and mechanically equivalent with identical specifications. The difference lies in inventory availability and the "X" designation in the part number. LP3985ITLX-2.5/NOPB has higher stock levels (3447 pcs vs. 1683 pcs).

Q: Are the substitute parts compatible with existing PCB designs?

A: Yes. All three parts use the identical 5-DSBGA (1.41x1.08) package, ensuring footprint and pinout compatibility with existing circuit board layouts.

Q: Why is the original LP3985ITL-2.5 marked as obsolete?

A: The original part has been superseded by active alternatives with improved compliance certifications. The substitute parts maintain full electrical and mechanical equivalence while offering ROHS3 compliance and better long-term availability.

Q: What packaging formats are available?

A: The obsolete LP3985ITL-2.5 is available in bulk packaging. Both active substitutes (LP3985ITL-2.5/NOPB and LP3985ITLX-2.5/NOPB) are supplied in Tape & Reel format, optimized for automated manufacturing processes.

Q: Are there any thermal or performance differences between the substitute parts?

A: No. All three parts maintain identical thermal characteristics, dropout voltage, quiescent current, and PSRR specifications across the full operating temperature range of -40°C to 125°C.