LM2592HVT-ADJ Buck Switching Regulator Equivalent & Substitute Parts

Part Overview

The LM2592HVT-ADJ is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with positive adjustable output. This device delivers 2A output current across an input voltage range of 4.5V to 60V, with adjustable output voltage from 1.2V to 57V. The part operates at 150kHz switching frequency and is housed in a TO-220-5 package with formed leads for through-hole mounting.

The LM2592HVT-ADJ has reached Last Time Buy status, making equivalent substitute parts necessary for ongoing design support and procurement continuity. Identifying compatible alternatives ensures uninterrupted supply chain access while maintaining electrical and mechanical compatibility.

Substiute Parts

LM2592HVT-ADJ

Texas InstrumentsIn Stock: 1000200LM2592HVT-ADJ Datasheet

Current PartRFQ

LM2592HVT-ADJ/NOPB

Texas InstrumentsIn Stock: 1000362LM2592HVT-ADJ/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2592HVT-ADJ is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Input voltage range: 4.5V to 60V
• Output voltage range: 1.2V to 57V (adjustable)
• Output current: 2A
• Switching frequency: 150kHz
• Topology: Buck (step-down)
• Output configuration: Positive, single output
• Synchronous rectifier: Not present

Mechanical & Package Requirements:

• Package type: TO-220-5 with formed leads
• Mounting: Through-hole
• Operating temperature range: -40°C to 125°C

Compliance & Status:

• RoHS3 compliance
• MSL Level 1 (unlimited moisture sensitivity)

Substitute parts must match all electrical specifications, maintain identical package and mounting characteristics, and comply with the same regulatory standards. The LM2592HVT-ADJ/NOPB qualifies as a direct substitute based on complete parameter alignment and identical functional performance.

Parameter Comparison

Engineering Selection Recommendations

The LM2592HVT-ADJ/NOPB is a direct functional equivalent to the LM2592HVT-ADJ. Both parts share identical electrical specifications, package configuration, and compliance certifications. The primary distinction is product lifecycle status: the original LM2592HVT-ADJ is in Last Time Buy phase, while the LM2592HVT-ADJ/NOPB maintains Active status from Texas Instruments.

For new designs or ongoing production requiring long-term supply assurance, the LM2592HVT-ADJ/NOPB is the appropriate selection. Both parts are ROHS3 compliant and carry MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage conditions. The /NOPB suffix indicates lead-free plating, consistent with modern environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: What does the /NOPB suffix mean on the LM2592HVT-ADJ/NOPB?

A: The /NOPB designation indicates "No Plumbum" (no lead), specifying that the part uses lead-free plating on the leads. This is a manufacturing specification that does not affect electrical performance or functional compatibility.

Q: Can I use LM2592HVT-ADJ/NOPB as a direct replacement for LM2592HVT-ADJ in existing designs?

A: Yes. The LM2592HVT-ADJ/NOPB is electrically and mechanically identical to the LM2592HVT-ADJ. Both parts have the same pin configuration, electrical ratings, and package dimensions (TO-220-5 formed leads), allowing direct substitution without circuit modifications.

Q: Why is the original LM2592HVT-ADJ marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments is discontinuing this specific part number variant. The LM2592HVT-ADJ/NOPB remains in active production and serves as the current production equivalent.

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

A: No. Both parts operate across the same temperature range (-40°C to 125°C junction temperature) and deliver identical 2A output current with the same 150kHz switching frequency. Thermal characteristics are equivalent.

Q: What is the significance of MSL Level 1 rating?

A: MSL Level 1 indicates unlimited moisture sensitivity, meaning the part does not require special moisture control during storage or handling. Standard warehouse conditions are acceptable for both the LM2592HVT-ADJ and LM2592HVT-ADJ/NOPB.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts use identical TO-220-5 through-hole package with formed leads. PCB footprints, lead spacing, and mounting procedures are identical, enabling direct interchangeability without design changes.