LM2590HVT-3.3/NOPB Equivalent & Substitute Parts

Part Overview

The LM2590HVT-3.3/NOPB is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed to deliver a fixed 3.3V output at 1A from input voltages ranging from 4.5V to 60V. This device operates at a switching frequency of 150kHz and is housed in a TO-220-7 package with formed leads for through-hole mounting.

The LM2590HVT-3.3/NOPB has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

LM2590HVT-3.3/NOPB

Texas InstrumentsIn Stock: 982LM2590HVT-3.3/NOPB Datasheet

Current PartRFQ

LM2598T-3.3/NOPB

Texas InstrumentsIn Stock: 975LM2598T-3.3/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2590HVT-3.3/NOPB is determined by the following critical parameters:

• Fixed output voltage of 3.3V
• Output current capability of 1A
• Buck topology with step-down function
• TO-220-7 package with through-hole mounting
• Operating temperature range of -40°C to 125°C
• Switching frequency of 150kHz
• RoHS3 compliance and REACH unaffected status

The LM2598T-3.3/NOPB qualifies as a direct substitute based on matching all functional and mechanical parameters. The primary distinction is the maximum input voltage specification: the LM2590HVT-3.3/NOPB supports up to 60V input, while the LM2598T-3.3/NOPB supports up to 40V input. For applications requiring input voltages above 40V, the LM2590HVT-3.3/NOPB remains the only suitable option. For applications operating within 4.5V to 40V input range, the LM2598T-3.3/NOPB provides an active, in-stock alternative.

Parameter Comparison

Engineering Selection Recommendations

The LM2598T-3.3/NOPB is the manufacturer-recommended substitute for the obsolete LM2590HVT-3.3/NOPB. Both devices maintain identical RoHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

The LM2598T-3.3/NOPB carries active product status, providing assured long-term availability and supply chain stability compared to the obsolete LM2590HVT-3.3/NOPB. Current inventory of 922 units is available in tube packaging.

Selection between these parts depends on input voltage requirements. Applications operating within the 4.5V to 40V input range may transition to the LM2598T-3.3/NOPB without functional compromise. Applications requiring input voltages exceeding 40V must retain the LM2590HVT-3.3/NOPB or pursue alternative regulator architectures.

Frequently Asked Questions (FAQ)

Q: Can the LM2598T-3.3/NOPB directly replace the LM2590HVT-3.3/NOPB in all applications?

A: Direct replacement is possible only for applications where the input voltage does not exceed 40V. The LM2590HVT-3.3/NOPB supports input voltages up to 60V, while the LM2598T-3.3/NOPB is rated to 40V maximum. Verify your application's input voltage specification before substitution.

Q: Are the package and pinout configurations identical?

A: Yes. Both devices use the TO-220-7 package with formed leads and are mounted through-hole. Mechanical and electrical pinout compatibility is confirmed.

Q: What is the significance of the product status difference?

A: The LM2590HVT-3.3/NOPB is obsolete, indicating discontinued production and limited future availability. The LM2598T-3.3/NOPB maintains active status, ensuring ongoing manufacturing and supply chain support.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the LM2590HVT-3.3/NOPB and LM2598T-3.3/NOPB are ROHS3 compliant and REACH unaffected, maintaining identical regulatory standing.

Q: What packaging format is available for the substitute part?

A: The LM2598T-3.3/NOPB is supplied in tube packaging, whereas the packaging format for the LM2590HVT-3.3/NOPB was not specified in available documentation.