LP2992IM5X-5.0 Linear Voltage Regulator - Equivalent & Substitute Parts

Part Overview

The LP2992IM5X-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications with 250mA current capacity in SOT-23-5 surface mount packaging. This part is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer functional alternatives with modified performance characteristics suitable for specific application requirements.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
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	-40°C to 125°C
Product Status	Obsolete
RoHS Status	RoHS Non-Compliant

Substitute Part Grouping Explanation

Substitute parts for the LP2992IM5X-5.0 are categorized based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Output voltage: 5V fixed
Package type: SOT-23-5 surface mount
Output configuration: Positive
Control features: Enable function
Protection features: Over current, over temperature, short circuit
Operating temperature range: -40°C to 125°C
Mounting type: Surface mount

Substitution Categories:

Parametric Equivalents maintain all electrical specifications identical to the main part while offering improved product status (active vs. obsolete) and enhanced RoHS compliance. These parts are direct replacements with no design modifications required.

Manufacturer Recommended Alternatives provide functional substitution with modified electrical characteristics. These parts maintain the same output voltage and package but offer different current ratings, dropout voltages, or quiescent current specifications. Selection depends on application current requirements and thermal performance needs.

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Current	Dropout Voltage	Quiescent Current	Input Voltage (Max)	RoHS Status	Inventory
LP2992IM5X-5.0	Texas Instruments	Obsolete	250mA	0.85V @ 250mA	95 µA	16V	Non-Compliant	1,843 Pcs
LP2992AIM5-5.0/NOPB	Texas Instruments	Active	250mA	0.85V @ 250mA	95 µA	16V	ROHS3 Compliant	17,348 Pcs
LP2992AIM5X-5.0/NOPB	Texas Instruments	Active	250mA	0.85V @ 250mA	95 µA	16V	ROHS3 Compliant	6,380 Pcs
LP2992IM5-5.0/NOPB	Texas Instruments	Active	250mA	0.85V @ 250mA	95 µA	16V	ROHS3 Compliant	1,218 Pcs
LP2992IM5X-5.0/NOPB	Texas Instruments	Active	250mA	0.85V @ 250mA	95 µA	16V	ROHS3 Compliant	2,318 Pcs
AP2210K-5.0TRG1	Diodes Incorporated	Active	300mA	0.5V @ 300mA	180 µA	13.2V	ROHS3 Compliant	33,185 Pcs
LD2985BM50R	STMicroelectronics	Active	150mA	0.575V @ 150mA	150 µA	16V	ROHS3 Compliant	20,200 Pcs
SPX3819M5-L-5-0/TR	MaxLinear, Inc.	Active	500mA	0.7V @ 500mA	8 µA	16V	ROHS3 Compliant	65,300 Pcs
SPX5205M5-L-5-0/TR	MaxLinear, Inc.	Active	150mA	0.35V @ 150mA	5 µA	16V	RoHS Compliant	68,100 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The LP2992AIM5-5.0/NOPB, LP2992AIM5X-5.0/NOPB, LP2992IM5-5.0/NOPB, and LP2992IM5X-5.0/NOPB are parametric equivalents of the obsolete LP2992IM5X-5.0. All four parts maintain 250mA output current, 0.85V dropout voltage, and 95µA quiescent current. The primary distinction is product status: all equivalent parts are active and ROHS3 compliant, addressing the obsolescence and compliance limitations of the original part. These parts require no circuit modifications and are suitable for direct substitution in existing designs.

For Higher Current Applications:

The AP2210K-5.0TRG1 from Diodes Incorporated provides 300mA output current with improved dropout voltage of 0.5V at rated current. This part is suitable for applications requiring current capacity exceeding 250mA. The input voltage maximum is reduced to 13.2V compared to 16V on the original part, requiring verification against application input voltage specifications. The SPX3819M5-L-5-0/TR from MaxLinear offers 500mA output current with 0.7V dropout voltage and exceptionally low 8µA quiescent current, making it suitable for high-current or battery-powered applications.

For Lower Current or Low-Power Applications:

The LD2985BM50R from STMicroelectronics and SPX5205M5-L-5-0/TR from MaxLinear both provide 150mA output current. The SPX5205M5-L-5-0/TR offers superior performance with 0.35V dropout voltage and 5µA quiescent current, making it optimal for power-sensitive designs. The LD2985BM50R provides 0.575V dropout voltage with 150µA quiescent current. Both parts maintain 16V maximum input voltage compatibility.

Compliance Considerations:

All substitute parts are ROHS3 compliant or RoHS compliant, addressing the non-compliance status of the obsolete original part. Inventory availability is strong across all alternatives, with SPX5205M5-L-5-0/TR and SPX3819M5-L-5-0/TR offering the highest stock levels at 68,100 and 65,300 units respectively.

Frequently Asked Questions (FAQ)

Q: Can I use LP2992AIM5-5.0/NOPB as a direct replacement for LP2992IM5X-5.0?

A: Yes. The LP2992AIM5-5.0/NOPB is a parametric equivalent with identical electrical specifications: 250mA output current, 0.85V dropout voltage, 95µA quiescent current, and 16V maximum input voltage. The part is active and ROHS3 compliant. No circuit modifications are required.

Q: What is the difference between LP2992AIM5-5.0/NOPB and LP2992AIM5X-5.0/NOPB?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is in the suffix designation (M5 vs. M5X), which reflects internal manufacturing or qualification variations. Both are active, ROHS3 compliant, and suitable for direct substitution.

Q: Can I use AP2210K-5.0TRG1 if my application only requires 200mA?

A: Yes. The AP2210K-5.0TRG1 provides 300mA output current, which exceeds the 200mA requirement. However, verify that the input voltage specification of 13.2V maximum is compatible with your application, as this is lower than the original part's 16V maximum.

Q: Which substitute part has the lowest power consumption?

A: The SPX3819M5-L-5-0/TR has the lowest quiescent current at 8µA, followed by SPX5205M5-L-5-0/TR at 5µA. For battery-powered or ultra-low-power applications, the SPX5205M5-L-5-0/TR is optimal despite its lower 150mA current rating.

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

A: Yes. All substitute parts listed are available in SOT-23-5 (SC-74A) surface mount packaging, maintaining mechanical compatibility with the original part.

Q: What is the operating temperature range for all substitute parts?

A: The LP2992 series equivalents and most alternatives maintain -40°C to 125°C operating range. The SPX5205M5-L-5-0/TR has a reduced upper temperature limit of 85°C; verify compatibility with your application's thermal requirements.

Q: Which part should I select for a new design?

A: For new designs requiring 250mA at 5V, select LP2992AIM5-5.0/NOPB or LP2992AIM5X-5.0/NOPB for direct compatibility with the original specification. For applications requiring higher current, select SPX3819M5-L-5-0/TR (500mA). For low-power applications, select SPX5205M5-L-5-0/TR (150mA, 5µA quiescent current).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message