LP2985IM5-2.7 Equivalent & Substitute Parts

Part Overview

The LP2985IM5-2.7 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 150mA output current with a fixed 2.7V output and operates across an input voltage range up to 16V. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support, production continuity, and system maintenance.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	LP2985IM5-2.7
Category	Power Management (PMIC)
Output Voltage (Fixed)	2.7V
Output Current	150mA
Input Voltage (Max)	16V
Voltage Dropout (Max)	0.58V @ 150mA
Quiescent Current	95 µA
Package Type	SOT-23-5 (SC-74A, SOT-753)
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the LP2985IM5-2.7 is determined by strict alignment of the following electrical and mechanical parameters:

Fixed output voltage of 2.7V
Minimum output current capability of 150mA
Maximum input voltage rating of 16V or higher
Voltage dropout specification of 0.58V @ 150mA or lower
SOT-23-5 package compatibility
Operating temperature range of -40°C to 125°C or wider
Presence of enable control feature
Integrated protection against over-current, over-temperature, and short-circuit conditions

The LP2985IM5-2.7/NOPB is identified as a parametric equivalent. This variant maintains identical electrical specifications and package configuration while differing only in packaging format (Cut Tape & Digi-Reel) and RoHS compliance status.

Parameter Comparison

Parameter	LP2985IM5-2.7	LP2985IM5-2.7/NOPB
Manufacturer	Texas Instruments	Texas Instruments
Output Voltage (Fixed)	2.7V	2.7V
Output Current	150mA	150mA
Input Voltage (Max)	16V	16V
Voltage Dropout (Max)	0.58V @ 150mA	0.58V @ 150mA
Quiescent Current	95 µA	95 µA
PSRR	45dB (1kHz)	45dB (1kHz)
Supply Current (Max)	2.5 mA	2.5 mA
Package Type	SOT-23-5	SOT-23-5
Operating Temperature	-40°C to 125°C	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit
Control Features	Enable	Enable
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Product Status	Obsolete	Obsolete

Engineering Selection Recommendations

The LP2985IM5-2.7/NOPB serves as the direct parametric equivalent for the LP2985IM5-2.7. Both parts are classified as obsolete products from Texas Instruments. The primary distinction between these variants is RoHS compliance status: the LP2985IM5-2.7/NOPB achieves ROHS3 compliance, while the original LP2985IM5-2.7 does not. For applications subject to RoHS regulatory requirements, the LP2985IM5-2.7/NOPB is the appropriate selection. Both parts maintain identical electrical performance, thermal characteristics, and package configuration, ensuring functional interchangeability within the specified operating parameters.