LP2985-28DBVRG4 Equivalent & Substitute Parts

Part Overview

The LP2985-28DBVRG4 is a linear voltage regulator IC from Texas Instruments, delivering a fixed 2.8V output at 150mA in a SOT-23-5 surface mount package. This part is classified as Obsolete, making equivalent and substitute parts necessary for ongoing production and design continuity. The regulator features integrated protection against overcurrent, overtemperature, and short circuit conditions, with an enable control feature for power management applications.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	2.8V
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

Substitute Part Grouping Explanation

Substitution for the LP2985-28DBVRG4 is determined by strict equivalence across the following critical parameters:

Output voltage: 2.8V fixed
Output current capability: 150mA
Maximum input voltage: 16V
Package type: SOT-23-5 (SC-74A)
Operating temperature range: -40°C to 125°C
Control and protection features: Enable function with overcurrent, overtemperature, and short circuit protection

Substitute parts are grouped into two categories: parametric equivalents within the LP2985 family from Texas Instruments, and manufacturer-recommended alternatives from STMicroelectronics and Microchip Technology that meet identical electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage (Max)	Quiescent Current	Package	Product Status	RoHS Status
LP2985-28DBVRG4	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Obsolete	ROHS3 Compliant
LP2985-28DBVR	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
LP2985-28DBVT	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Obsolete	ROHS3 Compliant
LP2985A-28DBVR	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Last Time Buy	ROHS3 Compliant
LP2985A-28DBVT	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Obsolete	ROHS3 Compliant
LP2985AIM5-2.8	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Not For New Designs	RoHS non-compliant
LP2985AIM5X-2.8/NOPB	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
LP2985IM5-2.8/NOPB	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
LP2985IM5X-2.8/NOPB	Texas Instruments	2.8V	150mA	16V	0.58V @ 150mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
LD2985BM28R	STMicroelectronics	2.8V	150mA	16V	0.575V @ 150mA	150 µA	SOT-23-5	Active	ROHS3 Compliant
MIC5205-2.8YM5-TR	Microchip Technology	2.8V	150mA	16V	0.35V @ 150mA	150 µA	SOT-23-5	Active	ROHS3 Compliant

Engineering Selection Recommendations

For direct replacement of the obsolete LP2985-28DBVRG4, the following selection criteria apply:

Primary Recommendation: LP2985-28DBVR (Texas Instruments, Active status) provides identical electrical specifications and is currently in active production with full ROHS3 compliance. This part maintains the same quiescent current (95 µA) and dropout voltage characteristics as the original.

Alternative from Texas Instruments: LP2985AIM5X-2.8/NOPB and LP2985IM5-2.8/NOPB are both Active status parts with ROHS3 compliance and identical core specifications. These represent current production options within the LP2985 family.

Cross-Manufacturer Alternatives: LD2985BM28R (STMicroelectronics) and MIC5205-2.8YM5-TR (Microchip Technology) are both Active status with ROHS3 compliance. The MIC5205-2.8YM5-TR offers superior dropout voltage performance (0.35V vs. 0.58V), which may provide advantages in low-input-voltage applications, though quiescent current is slightly higher at 150 µA.

Avoid: LP2985AIM5-2.8 is marked "Not For New Designs" and is RoHS non-compliant. LP2985A-28DBVT and LP2985-28DBVT are Obsolete status and should not be selected for new designs.

Frequently Asked Questions (FAQ)

Q: Can I use LP2985-28DBVR as a direct replacement for LP2985-28DBVRG4?

A: Yes. Both parts share identical electrical specifications: 2.8V fixed output, 150mA current capability, 0.58V dropout voltage at 150mA, 95 µA quiescent current, and SOT-23-5 packaging. The primary difference is product status; LP2985-28DBVR is Active while the original is Obsolete.

Q: What is the difference between LP2985-28DBVR and LP2985-28DBVT?

A: Both are parametric equivalents with identical electrical specifications. The difference is packaging format: DBVR indicates Tape & Reel (TR) packaging, while DBVT also indicates Tape & Reel. Both are suitable for automated assembly. LP2985-28DBVR is currently Active; LP2985-28DBVT is Obsolete.

Q: Is MIC5205-2.8YM5-TR compatible with LP2985-28DBVRG4?

A: Yes, electrically compatible. Both deliver 2.8V at 150mA in SOT-23-5 packaging with identical input voltage ratings and operating temperature range. The MIC5205 offers lower dropout voltage (0.35V vs. 0.58V) but has slightly higher quiescent current (150 µA vs. 95 µA). Both are ROHS3 compliant and Active status.

Q: Why is LP2985AIM5-2.8 not recommended?

A: This part is marked "Not For New Designs" and is RoHS non-compliant, making it unsuitable for modern production applications. Active alternatives with full ROHS3 compliance are available.

Q: Does package format (Tape & Reel vs. Cut Tape) affect electrical compatibility?

A: No. Packaging format affects handling and assembly logistics but not electrical performance. LP2985-28DBVR (Tape & Reel) and LP2985A-28DBVR (Cut Tape) are electrically identical and interchangeable in circuit design.

Q: What protection features are included in these regulators?

A: All LP2985 variants include overcurrent, overtemperature, and short circuit protection. The LD2985BM28R includes overcurrent and overtemperature protection. The MIC5205-2.8YM5-TR adds reverse polarity protection in addition to overcurrent, overtemperature, and short circuit protection.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message