LM5010SD Equivalent & Substitute Parts

Part Overview

The LM5010SD is a buck switching regulator IC from Texas Instruments designed for positive adjustable output applications. It delivers 1A output current with an adjustable output voltage range from 2.5V to 70V, operating from an 8V to 75V input supply. The device is housed in a 10-WDFN exposed pad surface mount package.

The LM5010SD is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this power management topology.

Substiute Parts

LM5010SD

Texas InstrumentsIn Stock: 2097LM5010SD Datasheet

Current PartRFQ

LM5010ASD/NOPB

Texas InstrumentsIn Stock: 2386LM5010ASD/NOPB Datasheet

DirectRFQ

LM5010ASDX/NOPB

Texas InstrumentsIn Stock: 21929LM5010ASDX/NOPB Datasheet

DirectRFQ

LM5010SD/NOPB

Texas InstrumentsIn Stock: 32213LM5010SD/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM5010SD is determined by the following critical parameters:

• Identical topology (buck step-down regulator)
• Matching output configuration (positive adjustable)
• Compatible voltage ranges (input and output)
• Equivalent output current rating (1A)
• Same package type (10-WDFN exposed pad)
• Identical switching frequency range (100kHz ~ 1MHz)
• Compatible operating temperature range

The LM5010SD has two direct substitutes from Texas Instruments within the LM5010 base product family: LM5010ASD/NOPB and LM5010ASDX/NOPB. Both are active products with enhanced specifications and improved compliance status compared to the obsolete LM5010SD. An additional substitute, LM5010SD/NOPB, maintains identical electrical specifications and packaging but offers improved availability and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the LM5010SD, the following substitution path is recommended based on product status and compliance requirements:

Primary Substitutes (Active Status, ROHS3 Compliant):

• LM5010ASDX/NOPB: Highest inventory availability (21,866 units). Supports extended operating temperature range (-40°C to 150°C). Minimum input voltage reduced to 6V, providing enhanced flexibility for lower voltage applications.
• LM5010SD/NOPB: Maintains identical electrical specifications and operating temperature range as the original LM5010SD. ROHS3 compliant with superior inventory (32,200 units). Recommended for direct replacement in existing designs without modification.

Secondary Substitute (Active Status, ROHS3 Compliant):

• LM5010ASD/NOPB: Active product with ROHS3 compliance. Extended operating temperature range (-40°C to 150°C). Minimum input voltage reduced to 6V. Lower inventory availability (2,300 units) compared to other active alternatives.

All substitute parts maintain identical output current (1A), switching frequency range (100kHz ~ 1MHz), and package configuration (10-WDFN exposed pad). The LM5010SD/NOPB provides the most direct replacement path for existing designs. The LM5010ASDX/NOPB offers superior availability and extended temperature performance for new designs or redesigns.

Frequently Asked Questions (FAQ)

Q: Can LM5010ASD/NOPB and LM5010ASDX/NOPB be used interchangeably with LM5010SD?

A: Yes. Both parts are direct substitutes. They maintain identical output current (1A), switching frequency (100kHz ~ 1MHz), output voltage range (2.5V to 70V), and package type (10-WDFN exposed pad). The primary differences are product status (active vs. obsolete), RoHS compliance (ROHS3 vs. non-compliant), and operating temperature range (-40°C to 150°C vs. -40°C to 125°C).

Q: What is the difference between LM5010ASD/NOPB and LM5010ASDX/NOPB?

A: Both parts are functionally identical with the same electrical specifications and package. The primary distinction is inventory availability: LM5010ASDX/NOPB has significantly higher stock (21,866 units) compared to LM5010ASD/NOPB (2,300 units).

Q: Does the reduced minimum input voltage (6V vs. 8V) in LM5010ASD/NOPB and LM5010ASDX/NOPB affect compatibility?

A: No. The reduced minimum input voltage (6V) in these substitutes is a specification enhancement. Applications designed for 8V minimum input will operate without modification. Applications requiring operation below 8V input can utilize the enhanced specifications of these substitutes.

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

A: Yes. All substitute parts use the 10-WDFN exposed pad package in 10-WSON (4x4) supplier device package format, ensuring mechanical and electrical compatibility with the original LM5010SD.

Q: What is the significance of ROHS3 compliance for these substitutes?

A: ROHS3 compliance indicates adherence to the Restriction of Hazardous Substances Directive. All active substitutes (LM5010ASD/NOPB, LM5010ASDX/NOPB, and LM5010SD/NOPB) are ROHS3 compliant, whereas the original LM5010SD is non-compliant. This is relevant for applications subject to regulatory requirements in regions enforcing RoHS standards.

Q: Which substitute should be selected for new designs?

A: LM5010ASDX/NOPB is recommended for new designs due to active product status, ROHS3 compliance, extended operating temperature range, superior inventory availability, and reduced minimum input voltage specification.