LP2985-18DBVRE4 Equivalent & Substitute Parts

Part Overview

The LP2985-18DBVRE4 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device delivers a fixed 1.8V output at 150mA with a maximum dropout voltage of 0.58V at rated current. The part is currently in Last Time Buy status, indicating limited availability and the necessity to identify active equivalent or substitute components for ongoing production and design requirements.

The LP2985-18DBVRE4 is packaged in SOT-23-5 (SC-74A) surface mount configuration with Tape & Reel (TR) packaging. It incorporates enable control, over-current protection, over-temperature protection, and short-circuit protection. The device operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	LP2985-18DBVRE4
Output Voltage (Fixed)	1.8V
Output Current	150mA
Input Voltage (Max)	16V
Dropout Voltage (Max)	0.58V @ 150mA
Quiescent Current	95 µA
PSRR	45dB (1kHz)
Package	SOT-23-5 (SC-74A)
Operating Temperature	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable
RoHS Status	ROHS3 Compliant
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution for the LP2985-18DBVRE4 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Fixed output voltage of 1.8V
Output current capability of 150mA or greater
Maximum input voltage of 16V or greater
SOT-23-5 package compatibility
Enable control feature
Protection features (Over Current, Over Temperature, Short Circuit)
Operating temperature range of -40°C to 125°C or wider

Substitution Categories:

Category 1: Direct Parametric Equivalents (150mA Output) Parts with identical electrical specifications and packaging. These include LP2985-18DBVR, LP2985-18DBVT, LP2985A-18DBVJ, LP2985A-18DBVR, LP2985A-18DBVT, and LP2985IM5X-1.8/NOPB. Differences are limited to packaging format (Tape & Reel vs. Cut Tape) and product status (Active vs. Last Time Buy).

Category 2: Higher Current Capability Substitutes (250mA Output) Parts with increased output current capacity: LP2992AIM5-1.8/NOPB, LP2992IM5-1.8/NOPB, and LP2992IM5X-1.8/NOPB. These deliver 250mA output with slightly higher dropout voltage (0.85V @ 250mA) but maintain all other electrical and mechanical compatibility parameters.

Parameter Comparison

Parameter	LP2985-18DBVRE4	LP2985IM5X-1.8/NOPB	LP2985-18DBVR	LP2985A-18DBVJ	LP2992IM5-1.8/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Output Voltage	1.8V	1.8V	1.8V	1.8V	1.8V
Output Current	150mA	150mA	150mA	150mA	250mA
Input Voltage (Max)	16V	16V	16V	16V	16V
Dropout Voltage (Max)	0.58V @ 150mA	0.58V @ 150mA	0.58V @ 150mA	0.58V @ 150mA	0.85V @ 250mA
Quiescent Current	95 µA	95 µA	95 µA	95 µA	95 µA
PSRR	45dB (1kHz)	45dB (1kHz)	45dB (1kHz)	45dB (1kHz)	45dB (1kHz)
Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5
Operating Temperature	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C
Product Status	Last Time Buy	Active	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (150mA Applications): LP2985IM5X-1.8/NOPB is the primary recommended substitute. This part maintains identical electrical specifications and is in Active product status with 8230 units in stock. The packaging format (Tape & Reel) matches the original LP2985-18DBVRE4, ensuring compatibility with automated assembly processes.

Alternative direct replacements include LP2985-18DBVR (80300 units in stock, Active status) and LP2985A-18DBVJ (21407 units in stock, Last Time Buy status). Both provide parametric equivalence with the original part.

For Higher Current Capability (250mA Applications): LP2992IM5-1.8/NOPB or LP2992IM5X-1.8/NOPB are suitable when increased output current is required. These parts deliver 250mA output while maintaining all other electrical and mechanical parameters. Both are in Active product status with adequate inventory (2100 and 1473 units respectively).

Compliance Considerations: All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with existing manufacturing and storage protocols. All parts carry EAR99 ECCN classification and are REACH Unaffected.

Frequently Asked Questions (FAQ)

Q: Can LP2992IM5-1.8/NOPB be used as a direct replacement for LP2985-18DBVRE4? A: LP2992IM5-1.8/NOPB is electrically and mechanically compatible but delivers 250mA output current versus the original 150mA. The dropout voltage increases to 0.85V at 250mA. This substitution is valid for applications requiring equal or lower current draw, with no circuit modifications required.

Q: What is the difference between LP2985-18DBVRE4 and LP2985IM5X-1.8/NOPB? A: Both parts are parametrically identical with 1.8V fixed output, 150mA current, and SOT-23-5 packaging. The primary difference is product status: LP2985-18DBVRE4 is Last Time Buy while LP2985IM5X-1.8/NOPB is Active. The latter is recommended for new designs and ongoing production.

Q: Are all substitute parts available in the same packaging format? A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) formats. LP2985IM5X-1.8/NOPB and LP2985-18DBVR are supplied in Tape & Reel, matching the original part's packaging. Cut Tape variants (LP2985-18DBVT, LP2985A-18DBVJ) are also available for applications with lower volume requirements.

Q: Do all substitute parts meet the same compliance requirements? A: All recommended substitutes are ROHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. All parts are classified as EAR99 for export control purposes, matching the original part's compliance profile.

Q: What is the inventory status for substitute parts? A: LP2985IM5X-1.8/NOPB has 8230 units in stock (Active status). LP2985-18DBVR has 80300 units available (Active status). LP2992IM5-1.8/NOPB has 2100 units in stock (Active status). These quantities support both immediate requirements and long-term production planning.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message