LP2992IM5-5.0 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP2992IM5-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output at 250mA in a SOT-23-5 surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The device provides regulated 5V output with integrated protection features including over-current, over-temperature, and short-circuit protection, suitable for low-power applications requiring stable voltage regulation.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	250mA
Input Voltage (Max)	16V
Dropout Voltage (Max)	0.85V @ 250mA
Quiescent Current	95 µA
Package	SOT-23-5 (SC-74A)
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable

Substitute Part Grouping Explanation

Substitution for the LP2992IM5-5.0 is determined by the following critical parameters:

Fixed 5V output voltage
SOT-23-5 package compatibility
Output current capability (minimum 250mA required for direct replacement)
Input voltage rating (16V maximum)
Operating temperature range (-40°C to 125°C)
Protection features (over-current, over-temperature, short-circuit)
Enable control feature

Substitute parts are grouped into three categories:

Direct Manufacturer Equivalents: Identical part numbers with different packaging or RoHS compliance status from Texas Instruments
Parametric Equivalents: Texas Instruments parts with identical electrical specifications but different temperature grades or extended features
Manufacturer Recommended Alternatives: Parts from other manufacturers meeting or exceeding the electrical and mechanical requirements

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	Package	Product Status	RoHS Status
LP2992IM5-5.0	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	SOT-23-5	Obsolete	Non-compliant
LP2992IM5-5.0/NOPB	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
LP2992AIM5-5.0/NOPB	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
LP2992AIM5X-5.0/NOPB	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
LP2992IM5X-5.0/NOPB	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	SOT-23-5	Active	ROHS3 Compliant
AP2210K-5.0TRG1	Diodes Incorporated	300mA	13.2V	0.5V @ 300mA	180 µA	SOT-23-5	Active	ROHS3 Compliant
LD2985BM50R	STMicroelectronics	150mA	16V	0.575V @ 150mA	150 µA	SOT-23-5	Active	ROHS3 Compliant
SPX3819M5-L-5-0/TR	MaxLinear, Inc.	500mA	16V	0.7V @ 500mA	8 µA	SOT-23-5	Active	ROHS3 Compliant
SPX5205M5-L-5-0/TR	MaxLinear, Inc.	150mA	16V	0.35V @ 150mA	5 µA	SOT-23-5	Active	RoHS Compliant

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Performance):

LP2992IM5-5.0/NOPB, LP2992AIM5-5.0/NOPB, LP2992AIM5X-5.0/NOPB, and LP2992IM5X-5.0/NOPB are direct functional equivalents with active product status and ROHS3 compliance. These parts maintain identical output current (250mA), input voltage rating (16V), and dropout voltage specifications. Selection among these variants depends on packaging requirements and inventory availability.

Higher Current Capability:

AP2210K-5.0TRG1 from Diodes Incorporated provides 300mA output current with improved dropout voltage (0.5V) in the same SOT-23-5 package. This part is suitable for applications requiring higher current capacity while maintaining 5V fixed output. Input voltage rating is reduced to 13.2V maximum.

Lower Current Applications:

LD2985BM50R from STMicroelectronics and SPX5205M5-L-5-0/TR from MaxLinear provide 150mA output current. LD2985BM50R maintains 16V input rating with 0.575V dropout voltage. SPX5205M5-L-5-0/TR offers superior performance with 0.35V dropout voltage and 5 µA quiescent current, though operating temperature range is limited to -40°C to 85°C.

Enhanced Performance:

SPX3819M5-L-5-0/TR from MaxLinear provides 500mA output current with 0.7V dropout voltage and exceptionally low 8 µA quiescent current, suitable for applications requiring higher current delivery or extended battery life in low-power systems.

All recommended substitutes maintain SOT-23-5 package compatibility, enable control feature, and integrated protection (over-current, over-temperature, short-circuit). Product status is active for all alternatives, ensuring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can LP2992IM5-5.0/NOPB be used as a direct replacement for LP2992IM5-5.0?

A: Yes. LP2992IM5-5.0/NOPB is the active production equivalent with identical electrical specifications (250mA output, 5V fixed, 0.85V dropout at 250mA) and SOT-23-5 package. The primary difference is ROHS3 compliance status and active product status versus obsolete classification.

Q: What is the difference between LP2992AIM5-5.0/NOPB and LP2992IM5-5.0/NOPB?

A: Both parts have identical electrical parameters and package. The "A" designation indicates a different temperature grade or manufacturing variant within the LP2992 family. Electrical performance remains equivalent for the specified operating range of -40°C to 125°C.

Q: Can AP2210K-5.0TRG1 replace LP2992IM5-5.0 in all applications?

A: AP2210K-5.0TRG1 provides higher output current (300mA versus 250mA) and lower dropout voltage (0.5V versus 0.85V), making it suitable for most applications. However, input voltage rating is reduced to 13.2V maximum compared to 16V. Verify input voltage requirements before substitution.

Q: Why would I choose SPX5205M5-L-5-0/TR over LP2992IM5-5.0/NOPB?

A: SPX5205M5-L-5-0/TR offers superior dropout voltage (0.35V versus 0.85V) and significantly lower quiescent current (5 µA versus 95 µA), beneficial for battery-powered applications. Trade-off is reduced output current (150mA versus 250mA) and narrower operating temperature range (-40°C to 85°C versus -40°C to 125°C).

Q: Are all substitute parts available in SOT-23-5 package?

A: Yes. All listed substitute parts use SOT-23-5 (SC-74A) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts designed for LP2992IM5-5.0.

Q: Which substitute offers the best performance for low-power applications?

A: SPX3819M5-L-5-0/TR provides the lowest quiescent current (8 µA) combined with highest output current capability (500mA), making it optimal for applications requiring both low standby power consumption and higher load current capacity.

Q: Do all substitutes include the same protection features?

A: All listed substitutes include over-current and over-temperature protection. Most include short-circuit protection. BD00GA3WNUX-TR includes soft-start protection in addition to standard protections. Verify specific protection requirements for your application.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message