LP2985-50DBVTM3 Equivalent & Substitute Parts

Part Overview

The LP2985-50DBVTM3 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This Surface Mount device delivers 150mA output current with a fixed 5V output and operates across an input voltage range up to 16V. The part is currently Active in product status and widely used in power management applications requiring compact, reliable regulation. Substitute parts are identified when design requirements necessitate alternative sourcing, inventory constraints, or equivalent performance specifications across the same functional category.

Substiute Parts

LP2985-50DBVTM3

Texas InstrumentsIn Stock: 1057LP2985-50DBVTM3 Datasheet

Current PartRFQ

LP2985A-50DBVRM3

Texas InstrumentsIn Stock: 3939LP2985A-50DBVRM3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2985-50DBVTM3 are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

• Output Configuration: Positive
• Output Type: Fixed
• Fixed Output Voltage: 5V
• Maximum Input Voltage: 16V
• Output Current Rating: 150mA
• Voltage Dropout: 0.575V @ 150mA
• Quiescent Current: 95 µA
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Package Type: SOT-23-5 (SC-74A, SOT-753)
• Mounting Type: Surface Mount
• Control Features: Current Limit, Enable
• Protection Features: Over Current, Over Temperature, Under Voltage Lockout (UVLO)
• PSRR: 78dB ~ 45dB (1kHz)
• RoHS Compliance: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the LP2985-50DBVTM3 and LP2985A-50DBVRM3 are Active products from Texas Instruments with identical electrical specifications and mechanical packaging. Both parts are ROHS3 Compliant and carry MSL 1 (Unlimited) ratings, indicating equivalent environmental and regulatory compliance. Selection between these parts may be based on inventory availability, lead time requirements, or supplier preference, as all functional and compliance parameters are equivalent.

Frequently Asked Questions (FAQ)

Q: Can LP2985A-50DBVRM3 be used as a direct replacement for LP2985-50DBVTM3?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output voltage (5V fixed), current rating (150mA), dropout voltage (0.575V @ 150mA), operating temperature range (-40°C ~ 125°C), and SOT-23-5 package configuration. All control and protection features are identical.

Q: Are there any differences in packaging or handling between these parts?

A: Both parts use SOT-23-5 (SC-74A, SOT-753) Surface Mount packaging and carry identical MSL 1 (Unlimited) moisture sensitivity ratings. Tape & Reel (TR) packaging is standard for both, requiring no special handling differences.

Q: What are the key parameters that define substitutability for this regulator?

A: Substitutability is determined by: fixed 5V output voltage, 150mA output current capability, 16V maximum input voltage, 0.575V maximum dropout voltage at rated current, SOT-23-5 package type, identical control features (Current Limit, Enable), and identical protection features (Over Current, Over Temperature, UVLO).

Q: Do both parts meet the same compliance standards?

A: Yes. Both LP2985-50DBVTM3 and LP2985A-50DBVRM3 are ROHS3 Compliant with REACH Unaffected status and MSL 1 (Unlimited) ratings.