LP2992IM5-1.5 Equivalent & Substitute Parts

Part Overview

The LP2992IM5-1.5 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device delivers a fixed positive 1.5V output at 250mA with a maximum input voltage of 16V and dropout voltage of 0.85V at full load. The part is currently marked as Obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity.

Substiute Parts

LP2992IM5-1.5

Texas InstrumentsIn Stock: 1938LP2992IM5-1.5 Datasheet

Current PartRFQ

LP2992AIM5-1.5/NOPB

National SemiconductorIn Stock: 2275LP2992AIM5-1.5/NOPB Datasheet

Parametric EquivalentRFQ

LP2992AIM5X-1.5/NOPB

National SemiconductorIn Stock: 1795LP2992AIM5X-1.5/NOPB Datasheet

Parametric EquivalentRFQ

LP2992IM5-1.5/NOPB

Texas InstrumentsIn Stock: 3537LP2992IM5-1.5/NOPB Datasheet

Parametric EquivalentRFQ

LP2992IM5X-1.5/NOPB

Texas InstrumentsIn Stock: 1188LP2992IM5X-1.5/NOPB Datasheet

Parametric EquivalentRFQ

SPX3819M5-L-1-5/TR

MaxLinear, Inc.In Stock: 22964SPX3819M5-L-1-5/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2992IM5-1.5 are classified based on strict parametric equivalence. The primary substitution criteria are:

Critical Parameters for Substitution:

• Fixed output voltage: 1.5V
• Output current capability: 250mA minimum
• Maximum input voltage: 16V
• Package type: SOT-23-5 (SC-74A, SOT-753)
• Operating temperature range: -40°C ~ 125°C
• Protection features: Over Current, Over Temperature, Short Circuit

Parametric Equivalent Parts maintain all critical electrical and mechanical parameters identical to the main part. These include LP2992AIM5-1.5/NOPB, LP2992AIM5X-1.5/NOPB, LP2992IM5-1.5/NOPB, and LP2992IM5X-1.5/NOPB.

Manufacturer Recommended Substitute (SPX3819M5-L-1-5/TR) provides enhanced performance with higher output current capability (500mA) while maintaining the same output voltage, input voltage rating, package type, and operating temperature range. This part is suitable for applications requiring additional current headroom.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents): LP2992AIM5-1.5/NOPB and LP2992AIM5X-1.5/NOPB from National Semiconductor are Active status parts with identical electrical specifications. LP2992IM5-1.5/NOPB and LP2992IM5X-1.5/NOPB from Texas Instruments maintain full parametric equivalence; however, LP2992IM5-1.5/NOPB is Obsolete while LP2992IM5X-1.5/NOPB is Last Time Buy status.

For Enhanced Performance: SPX3819M5-L-1-5/TR from MaxLinear, Inc. is an Active status part offering 500mA output current (double the original specification) while maintaining 1.5V output, 16V maximum input, SOT-23-5 package, and -40°C to 125°C operating range. This part includes Reverse Polarity protection in addition to Over Current and Over Temperature protection. The significantly lower quiescent current (8 µA versus 95 µA) provides additional power efficiency benefits.

Compliance Considerations: For new designs requiring RoHS compliance, LP2992IM5-1.5/NOPB (ROHS3 Compliant), LP2992IM5X-1.5/NOPB (ROHS3 Compliant), or SPX3819M5-L-1-5/TR (RoHS Compliant) are appropriate selections. The original LP2992IM5-1.5 is RoHS non-compliant.

Frequently Asked Questions (FAQ)

Q: Can LP2992AIM5-1.5/NOPB be used as a direct replacement for LP2992IM5-1.5?

A: Yes. LP2992AIM5-1.5/NOPB is a parametric equivalent with identical output voltage (1.5V), output current (250mA), input voltage rating (16V), dropout voltage (0.85V @ 250mA), quiescent current (95 µA), package type (SOT-23-5), operating temperature range (-40°C ~ 125°C), and protection features. The part is Active status, making it suitable for production use.

Q: What is the difference between LP2992IM5X-1.5/NOPB and LP2992IM5-1.5/NOPB?

A: Both parts are parametrically equivalent with identical electrical specifications. The primary difference is product status: LP2992IM5-1.5/NOPB is Obsolete, while LP2992IM5X-1.5/NOPB is Last Time Buy. Both are ROHS3 Compliant. For new designs, LP2992IM5X-1.5/NOPB should be prioritized due to its Last Time Buy status providing extended availability.

Q: Can SPX3819M5-L-1-5/TR replace LP2992IM5-1.5 in all applications?

A: SPX3819M5-L-1-5/TR maintains the same 1.5V output voltage, 16V maximum input voltage, SOT-23-5 package, and -40°C to 125°C operating temperature range. The key difference is higher output current capability (500mA versus 250mA). This part is suitable for applications where the original 250mA specification is adequate or where additional current headroom is beneficial. Dropout voltage is not specified for SPX3819M5-L-1-5/TR, so verification against application requirements is necessary.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts use the SOT-23-5 package (SC-74A, SOT-753), ensuring mechanical and electrical compatibility with the original LP2992IM5-1.5 footprint.

Q: Which substitute part has the best long-term availability?

A: SPX3819M5-L-1-5/TR from MaxLinear, Inc. is Active status with the highest inventory (22,900 Pcs), providing the best long-term availability. Among National Semiconductor parts, LP2992AIM5-1.5/NOPB and LP2992AIM5X-1.5/NOPB are both Active status alternatives.