LP2992IM5X-5.0/NOPB Equivalent & Substitute Parts

Part Overview

The LP2992IM5X-5.0/NOPB is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device delivers a fixed 5V positive output at 250mA maximum current in a surface-mount SOT-23-5 package. The part is currently in active production status with 2318 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging options are required, or when design specifications allow for components with different electrical characteristics within acceptable operating parameters.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Voltage	5V Fixed
Output Current	250mA
Input Voltage (Max)	16V
Dropout Voltage	0.85V @ 250mA
Package Type	SOT-23-5 (SC-74A)
Mounting Type	Surface Mount
Operating Temperature	-40°C to 125°C
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Parameters:

Output voltage: 5V fixed
Package type: SOT-23-5 (SC-74A)
Mounting type: Surface mount
Output configuration: Positive
Control features: Enable function
Protection features: Over current, over temperature, short circuit

Secondary Compatibility Parameters:

Input voltage maximum: 16V or higher
Output current: 250mA or higher
Operating temperature range: -40°C to 125°C or equivalent
Compliance: ROHS3, REACH Unaffected, EAR99

Substitute parts are grouped into two categories:

Category 1: Manufacturer Recommended Substitutes – Parts with identical or superior electrical specifications and active product status.

Category 2: Parametric Equivalents – Parts with identical core specifications but different manufacturing variants or packaging options.

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	Product Status	Inventory
LP2992IM5X-5.0/NOPB	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	Active	2318 Pcs
LP2985-50DBVR	Texas Instruments	150mA	16V	0.58V @ 150mA	95 µA	Active	32100 Pcs
LP2985-50DBVT	Texas Instruments	150mA	16V	0.58V @ 150mA	95 µA	Active	2000 Pcs
LP2985A-50DBVR	Texas Instruments	150mA	16V	0.58V @ 150mA	95 µA	Active	80100 Pcs
LP2985A-50DBVT	Texas Instruments	150mA	16V	0.58V @ 150mA	95 µA	Active	9800 Pcs
REG102NA-5/250	Texas Instruments	250mA	10V	0.27V @ 250mA	500 µA	Last Time Buy	1258 Pcs
REG102NA-5/3K	Texas Instruments	250mA	10V	0.27V @ 250mA	500 µA	Last Time Buy	3290 Pcs
TPS73250DBVR	Texas Instruments	250mA	5.5V	0.15V @ 250mA	550 µA	Active	7600 Pcs
TPS73250DBVT	Texas Instruments	250mA	5.5V	0.15V @ 250mA	550 µA	Active	6990 Pcs
LP2992AIM5-5.0/NOPB	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	Active	17348 Pcs
LP2992AIM5X-5.0/NOPB	Texas Instruments	250mA	16V	0.85V @ 250mA	95 µA	Active	6380 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): LP2992AIM5-5.0/NOPB and LP2992AIM5X-5.0/NOPB are parametric equivalents with identical electrical characteristics to the LP2992IM5X-5.0/NOPB. Both are active products with ROHS3 compliance and REACH unaffected status. LP2992AIM5-5.0/NOPB offers higher inventory availability (17348 units).

For Reduced Current Applications (≤150mA): The LP2985 series (LP2985-50DBVR, LP2985-50DBVT, LP2985A-50DBVR, LP2985A-50DBVT) provides lower dropout voltage (0.58V) and identical quiescent current. These are suitable only when output current requirements do not exceed 150mA. All variants are active products with ROHS3 compliance. LP2985A-50DBVR has the highest inventory (80100 units).

For Low Input Voltage Applications (≤5.5V): TPS73250DBVR and TPS73250DBVT deliver superior dropout voltage performance (0.15V @ 250mA) and are limited to maximum input voltage of 5.5V. These are active products with ROHS3 compliance and additional reverse polarity protection. Selection depends on input voltage constraints.

For Legacy System Support: REG102NA-5/250 and REG102NA-5/3K maintain 250mA output current and identical package type but are designated Last Time Buy status. These parts have higher quiescent current (500 µA) and lower maximum input voltage (10V). Use only when legacy system compatibility is mandatory.

Frequently Asked Questions (FAQ)

Q: Can LP2985 series parts replace the LP2992IM5X-5.0/NOPB in all applications?

A: No. LP2985 series parts are limited to 150mA maximum output current, compared to 250mA for the LP2992IM5X-5.0/NOPB. Substitution is valid only when circuit load current does not exceed 150mA.

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

A: Both parts have identical electrical specifications and package type (SOT-23-5). The difference is in manufacturing variant designation. Both are active products with ROHS3 compliance.

Q: Why are REG102NA parts marked Last Time Buy?

A: Last Time Buy status indicates these parts are being discontinued. While still available in limited quantities, they should not be selected for new designs. Use active product alternatives instead.

Q: Can TPS73250DBVR be used with a 16V input supply?

A: No. TPS73250DBVR has a maximum input voltage rating of 5.5V. Exceeding this specification will damage the device. Use only in applications with input voltage ≤5.5V.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and REACH Unaffected designation, matching the compliance profile of the LP2992IM5X-5.0/NOPB.

Q: What is the significance of the "X" designation in LP2992IM5X-5.0/NOPB?

A: The "X" indicates a manufacturing variant. LP2992AIM5X-5.0/NOPB is the parametric equivalent variant. Both maintain identical electrical specifications and package type.

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