LM2852YMXAX-1.8 Equivalent & Substitute Parts

Part Overview

The LM2852YMXAX-1.8 is a buck switching regulator IC from the SIMPLE SWITCHER® series manufactured by Texas Instruments. It delivers a fixed 1.8V output at 2A from an input voltage range of 2.85V to 5.5V, operating at 500kHz switching frequency with integrated synchronous rectification. The device is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

LM2852YMXAX-1.8

Texas InstrumentsIn Stock: 2356LM2852YMXAX-1.8 Datasheet

Current PartRFQ

LM2852YMXAX-1.8/NOPB

National SemiconductorIn Stock: 3651LM2852YMXAX-1.8/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2852YMXAX-1.8 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 1.8V
• Output current capability of 2A
• Input voltage range of 2.85V to 5.5V
• Buck topology with synchronous rectification
• 500kHz switching frequency
• 14-PowerTSSOP package configuration
• Operating temperature range of -40°C to 125°C

The substitute part LM2852YMXAX-1.8/NOPB meets all these criteria and maintains functional and electrical equivalence with the original component.

Parameter Comparison

Engineering Selection Recommendations

The LM2852YMXAX-1.8/NOPB is a direct functional equivalent suitable for replacing the obsolete LM2852YMXAX-1.8. The substitute maintains identical electrical specifications, package configuration, and thermal operating range. The primary distinction is product status: the substitute is classified as active, ensuring continued availability and manufacturing support. Both components share the same ECCN and HTSUS classifications, indicating equivalent regulatory treatment. Selection of the active substitute part eliminates obsolescence risk while preserving design compatibility and performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the LM2852YMXAX-1.8/NOPB be used as a direct replacement for the LM2852YMXAX-1.8?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical output voltage (1.8V), output current (2A), input voltage range (2.85V to 5.5V), switching frequency (500kHz), package type (14-PowerTSSOP), and operating temperature range (-40°C to 125°C). No circuit modifications are required.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix denotes lead-free (No Lead) and RoHS-compliant packaging. This designation reflects manufacturing and environmental compliance standards.

Q: Are there any differences in thermal or electrical performance between these parts?

A: No. Both components operate at identical switching frequency, deliver the same output current, and maintain the same thermal operating range. Performance characteristics are equivalent.

Q: Why is the original part marked as obsolete?

A: Product obsolescence typically results from manufacturer discontinuation decisions. The active substitute part ensures design continuity and long-term component availability.

Q: Is the 14-PowerTSSOP package compatible with existing PCB layouts?

A: Yes. Both parts use the identical 14-PowerTSSOP package with 0.173" width and 4.40mm dimensions. PCB footprints and layouts require no modification.