LM2597HVM-12 Equivalent & Substitute Parts

Part Overview

The LM2597HVM-12 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with a fixed 12V output. This device delivers 500mA output current and operates across a wide input voltage range of 4.5V to 60V, making it suitable for various power management applications requiring regulated 12V rails.

The LM2597HVM-12 is classified as obsolete. Finding equivalent or substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturing status and current compliance certifications.

Substiute Parts

LM2597HVM-12

Texas InstrumentsIn Stock: 4107LM2597HVM-12 Datasheet

Current PartRFQ

LM2597HVM-12/NOPB

Texas InstrumentsIn Stock: 1075LM2597HVM-12/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2597HVM-12 is determined by strict equivalence across the following critical parameters:

• Functional topology: Buck (step-down) switching regulator
• Output voltage: Fixed 12V
• Output current capability: 500mA minimum
• Input voltage range: 4.5V to 60V minimum
• Package type: 8-SOIC form factor
• Switching frequency: 150kHz
• Output configuration: Single positive output
• Synchronous rectification: Not required

The LM2597HVM-12/NOPB qualifies as a direct substitute because it maintains identical electrical specifications, package configuration, and functional characteristics while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM2597HVM-12/NOPB is the appropriate substitute for the obsolete LM2597HVM-12. Both parts share identical electrical and mechanical specifications, ensuring direct pin-for-pin and functional compatibility.

The LM2597HVM-12/NOPB offers the following advantages:

• Active product status: Currently manufactured and supported by Texas Instruments
• ROHS3 compliance: Meets current environmental and regulatory requirements
• Established supply chain: 969 units in current inventory
• Identical performance: No functional or electrical differences in application circuits

Selection of the LM2597HVM-12/NOPB eliminates obsolescence risk while maintaining full design compatibility with existing LM2597HVM-12 implementations.

Frequently Asked Questions (FAQ)

Q: Can the LM2597HVM-12/NOPB be used as a direct replacement for the LM2597HVM-12?

A: Yes. The LM2597HVM-12/NOPB is electrically and mechanically identical to the LM2597HVM-12. Both devices feature the same 12V fixed output, 500mA current rating, 8-SOIC package, and operating specifications. No circuit modifications are required.

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

A: The "/NOPB" suffix indicates "No Plumbum" (lead-free) packaging and is associated with ROHS3 compliance. This designation reflects the manufacturing process and environmental compliance status rather than functional differences.

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

A: No. Both parts operate across the identical input voltage range (4.5V to 60V), deliver the same output current (500mA), and maintain the same switching frequency (150kHz) and operating temperature range (-40°C to 125°C).

Q: Why is the original LM2597HVM-12 marked as obsolete?

A: Product obsolescence typically reflects manufacturing discontinuation by the supplier. The LM2597HVM-12/NOPB remains in active production and is the recommended path forward for new designs and component replenishment.

Q: Is the 8-SOIC package compatible with existing PCB layouts?

A: Yes. Both parts use the identical 8-SOIC (0.154", 3.90mm Width) package. PCB footprints, land patterns, and assembly processes require no modification.

Q: What is the inventory status for the substitute part?

A: The LM2597HVM-12/NOPB has 969 units in current stock as new original inventory, ensuring availability for immediate procurement.