LM25575MH Equivalent & Substitute Parts

Part Overview

The LM25575MH is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion applications. It delivers positive adjustable output from 1.225V to 40V with 1.5A output current capability, operating across a 6V to 42V input range. The device is housed in a 16-PowerTSSOP surface mount package and operates across the industrial temperature range of -40°C to 125°C.

The LM25575MH carries a Last Time Buy product status, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs or design revisions.

Substiute Parts

LM25575MH

Texas InstrumentsIn Stock: 3990LM25575MH Datasheet

Current PartRFQ

LM25575MH/NOPB

Texas InstrumentsIn Stock: 1181LM25575MH/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM25575MH is determined by strict equivalence across the following critical parameters:

• Topology & Function: Buck (step-down) converter with positive adjustable output
• Electrical Specifications: Input voltage range 6V–42V, output range 1.225V–40V, 1.5A output current
• Switching Frequency: 50kHz to 1MHz operational range
• Thermal Performance: Operating temperature -40°C to 125°C
• Package Compatibility: 16-PowerTSSOP surface mount package with identical pinout and mechanical dimensions
• Rectifier Type: Non-synchronous design

The LM25575MH/NOPB is the direct manufacturer-recommended equivalent, sharing identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM25575MH/NOPB is the direct substitute for the LM25575MH. Both parts are electrically and mechanically identical, with pinout compatibility and identical performance characteristics across all specified parameters.

The primary distinction is product lifecycle status: the LM25575MH is Last Time Buy, while the LM25575MH/NOPB maintains Active status. Additionally, the LM25575MH/NOPB carries ROHS3 compliance certification, whereas the LM25575MH is RoHS non-compliant. Both parts maintain identical MSL rating, REACH status, and ECCN classification.

For new designs or production continuity, the LM25575MH/NOPB is the appropriate selection due to its active product status and enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Are the LM25575MH and LM25575MH/NOPB electrically interchangeable?

A: Yes. Both parts share identical electrical specifications, including input voltage range (6V–42V), output voltage range (1.225V–40V), output current (1.5A), switching frequency (50kHz–1MHz), and operating temperature range (-40°C to 125°C).

Q: Can I use LM25575MH/NOPB as a direct replacement for LM25575MH in existing designs?

A: Yes. The parts are mechanically and electrically equivalent with identical pinout and package dimensions (16-PowerTSSOP). No circuit modifications are required.

Q: What is the difference between LM25575MH and LM25575MH/NOPB?

A: The primary differences are product status and compliance certification. The LM25575MH is Last Time Buy with RoHS non-compliant status, while the LM25575MH/NOPB is Active with ROHS3 compliance. All electrical and mechanical parameters are identical.

Q: Why is the LM25575MH marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. The LM25575MH/NOPB represents the active continuation of this product line.

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

A: No. Both parts use the 16-PowerTSSOP package with 0.173" width (4.40mm) and are surface mount devices with identical pinout and mechanical compatibility.

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

A: The "/NOPB" suffix indicates "No Plumbum" (lead-free) packaging, which aligns with RoHS3 compliance requirements.