LM2736XMK Equivalent & Substitute Parts

Part Overview

The LM2736XMK is a buck switching regulator IC from Texas Instruments designed for step-down voltage conversion applications. It delivers positive adjustable output from 1.25V to 16V with a maximum output current of 750mA, operating across an input voltage range of 3V to 18V. The device is housed in a SOT-23-6 Thin package suitable for surface mount applications.

The LM2736XMK carries a Last Time Buy product status, indicating that this part number will no longer be manufactured after a specified date. Organizations using this component should evaluate equivalent alternatives to ensure long-term supply chain continuity and design flexibility.

Substiute Parts

LM2736XMK

Texas InstrumentsIn Stock: 26781LM2736XMK Datasheet

Current PartRFQ

LM2736XMK/NOPB

Texas InstrumentsIn Stock: 35944LM2736XMK/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2736XMK is determined by strict equivalence across the following critical parameters:

• Function and topology (step-down buck converter)
• Output configuration (positive adjustable)
• Voltage specifications (input 3V–18V, output 1.25V–16V)
• Current rating (750mA output)
• Switching frequency (1.6MHz)
• Package type (SOT-23-6 Thin)
• Operating temperature range (-40°C to 125°C)
• Compliance certifications (ROHS3, REACH Unaffected)

Parts meeting all these criteria are classified as direct equivalents and may be used interchangeably in applications designed for the LM2736XMK.

Parameter Comparison

Engineering Selection Recommendations

The LM2736XMK/NOPB is the manufacturer-recommended equivalent for the LM2736XMK. Both parts share identical electrical and mechanical specifications, with the primary distinction being product lifecycle status. The LM2736XMK carries Last Time Buy status, while the LM2736XMK/NOPB maintains Active status, indicating ongoing availability and manufacturing support.

For new designs or long-term production requirements, the LM2736XMK/NOPB is the preferred selection due to its active product status and assured supply continuity. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Frequently Asked Questions (FAQ)

Q: Can the LM2736XMK/NOPB be used as a direct replacement for the LM2736XMK?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage ratings, current capacity, switching frequency, package type, and operating temperature range. The "/NOPB" suffix indicates lead-free plating and does not affect functional compatibility.

Q: What does the Last Time Buy status mean for the LM2736XMK?

A: Last Time Buy indicates that Texas Instruments will discontinue manufacturing this part number after a specified cutoff date. Existing inventory may remain available through authorized distributors, but new production orders will not be fulfilled after this date.

Q: Are there any package or pinout differences between these parts?

A: No. Both the LM2736XMK and LM2736XMK/NOPB use the SOT-23-6 Thin package with identical pinout and mechanical dimensions, allowing direct PCB-level substitution without layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: Which part should be specified for new designs?

A: The LM2736XMK/NOPB should be specified for new designs due to its Active product status and assured long-term availability from Texas Instruments and authorized distributors.