LMV331M7X Equivalent & Substitute Parts

Part Overview

The LMV331M7X is a general-purpose comparator IC manufactured by Texas Instruments, housed in a 5-TSSOP (SC-70-5, SOT-353) surface-mount package. This device features CMOS, open-collector, and TTL output types with a supply voltage range of 2.7V to 5.5V, making it suitable for low-power analog signal comparison applications. The part is currently classified as "Not For New Designs," indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support ongoing production requirements for existing applications.

Substiute Parts

LMV331M7X

Texas InstrumentsIn Stock: 1762LMV331M7X Datasheet

Current PartRFQ

LMV331M7

Texas InstrumentsIn Stock: 2142LMV331M7 Datasheet

Parametric EquivalentRFQ

LMV331M7/NOPB

Texas InstrumentsIn Stock: 2465LMV331M7/NOPB Datasheet

Parametric EquivalentRFQ

LMV331M7X/NOPB

Texas InstrumentsIn Stock: 3362LMV331M7X/NOPB Datasheet

Parametric EquivalentRFQ

LMV331SE-7

Diodes IncorporatedIn Stock: 5297LMV331SE-7 Datasheet

UpgradeRFQ

TS391IYLT

STMicroelectronicsIn Stock: 21324TS391IYLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LMV331M7X are classified based on strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Supply, Single/Dual (±): 2.7V ~ 5.5V (minimum requirement)
• Output Type: CMOS, Open-Collector, TTL (functional compatibility)
• Package / Case: 5-TSSOP, SC-70-5, SOT-353 (mechanical compatibility)
• Voltage - Input Offset (Max): 7mV @ 5V or lower
• Current - Input Bias (Max): 0.25µA @ 5V or lower
• Current - Output (Typ): 84mA @ 5V or higher
• Current - Quiescent (Max): 120µA or lower
• Propagation Delay (Max): 600ns or lower
• Operating Temperature: -40°C minimum and 85°C maximum (or extended range)

Grouping Categories:

Parametric Equivalents: Parts meeting all primary substitution criteria with identical or superior electrical performance and identical packaging.

Upgrade Options: Parts exceeding primary criteria with enhanced performance characteristics (extended temperature range, faster propagation delay) while maintaining package compatibility.

Manufacturer Recommended Alternatives: Parts from alternative manufacturers meeting substitution criteria with different packaging but proven functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

LMV331M7/NOPB and LMV331M7X/NOPB are the primary recommended substitutes. Both parts maintain identical electrical specifications to the LMV331M7X while offering Active product status and ROHS3 compliance. LMV331M7X/NOPB provides the highest inventory availability (3300 pcs) and is packaged in Cut Tape & Digi-Reel format, suitable for high-volume production. LMV331M7/NOPB is available in Tape & Reel format with 2400 pcs in stock.

For Enhanced Performance (Upgrade Option):

LMV331SE-7 (Diodes Incorporated) offers superior propagation delay performance (450ns versus 600ns) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). This part maintains identical electrical specifications for supply voltage, input offset, input bias, output current, and quiescent current. RoHS3 compliance and Active product status support long-term design continuity. Moisture sensitivity level is MSL-3 (168 hours) compared to MSL-1 for other options.

For Alternative Sourcing (Different Package):

TS391IYLT (STMicroelectronics) provides an alternative from a different manufacturer with enhanced supply voltage range (2V ~ 36V, ±1V ~ 18V) and improved input offset (5mV @ 5V). However, this part uses SOT-23-5 packaging (SC-74A, SOT-753) rather than SC-70-5, requiring PCB layout modification. Output current is reduced to 16mA typical, and quiescent current is significantly higher at 1.25mA. This option is suitable only when package change is acceptable and higher supply voltage capability is required.

Compliance Considerations:

The original LMV331M7X is RoHS non-compliant. All recommended substitutes (LMV331M7, LMV331M7/NOPB, LMV331M7X/NOPB, LMV331SE-7, and TS391IYLT) are ROHS3 compliant, supporting modern manufacturing and environmental requirements. All parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can LMV331M7/NOPB be used as a direct replacement for LMV331M7X?

A: Yes. LMV331M7/NOPB is a parametric equivalent with identical electrical specifications (supply voltage, input offset, input bias, output current, quiescent current, and propagation delay). The primary difference is product status (Active versus Not For New Designs) and RoHS compliance (ROHS3 versus non-compliant). Packaging is identical (5-TSSOP, SC-70-5, SOT-353).

Q: What is the difference between LMV331M7X/NOPB and LMV331M7/NOPB?

A: Both parts are parametric equivalents with identical electrical specifications and packaging. The "/NOPB" suffix indicates lead-free, RoHS-compliant versions. LMV331M7X/NOPB has higher inventory availability (3300 pcs) and is supplied in Cut Tape & Digi-Reel format. LMV331M7/NOPB is supplied in Tape & Reel format with 2400 pcs available. Selection depends on packaging format requirements for your production process.

Q: Should I consider LMV331SE-7 as an upgrade?

A: LMV331SE-7 is suitable as an upgrade if your application benefits from faster propagation delay (450ns versus 600ns) or extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). All other electrical parameters remain identical. The part is manufactured by Diodes Incorporated and maintains identical packaging (5-TSSOP, SC-70-5, SOT-353). Moisture sensitivity level is MSL-3 (168 hours) rather than MSL-1, which may affect storage and handling procedures.

Q: Can TS391IYLT replace LMV331M7X in my design?

A: TS391IYLT is not a direct replacement due to package differences (SOT-23-5 versus SC-70-5) and reduced output current (16mA typical versus 84mA typical). However, it offers enhanced supply voltage range (2V ~ 36V, ±1V ~ 18V) and improved input offset (5mV @ 5V). Use this part only if your application requires higher supply voltage capability and can accommodate PCB layout changes for the different package. Verify that reduced output current meets your circuit requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitute parts (LMV331M7, LMV331M7/NOPB, LMV331M7X/NOPB, LMV331SE-7, and TS391IYLT) are ROHS3 compliant. The original LMV331M7X is RoHS non-compliant. This compliance improvement supports modern manufacturing standards and environmental regulations.

Q: What packaging formats are available for these parts?

A: LMV331M7 is available in Cut Tape & Digi-Reel format. LMV331M7/NOPB is supplied in Tape & Reel format. LMV331M7X/NOPB is available in Cut Tape & Digi-Reel format. LMV331SE-7 is supplied in Cut Tape & Digi-Reel format. TS391IYLT is available in Cut Tape & Digi-Reel format. Select based on your production volume and assembly process requirements.

Q: What is the product status significance for each part?

A: LMV331M7X is "Not For New Designs," indicating end-of-life status. LMV331M7 is "Last Time Buy," representing the final production run. LMV331M7/NOPB, LMV331M7X/NOPB, LMV331SE-7, and TS391IYLT are all "Active," indicating ongoing production and long-term availability. For new designs and ongoing production, select from Active status parts.