LM2598T-5.0 Equivalent & Substitute Parts

Part Overview

The LM2598T-5.0 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with a fixed 5V output and 1A current capacity. This component operates across a wide input voltage range of 4.5V to 40V and is housed in a TO-220-7 package with formed leads for through-hole mounting.

The LM2598T-5.0 carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturing support and current compliance certifications.

Substiute Parts

LM2598T-5.0

Texas InstrumentsIn Stock: 8672LM2598T-5.0 Datasheet

Current PartRFQ

LM2598T-5.0/NOPB

Texas InstrumentsIn Stock: 1054LM2598T-5.0/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2598T-5.0 is determined by strict equivalence across the following critical parameters:

• Output Voltage Configuration: Fixed 5V output
• Output Current Rating: 1A minimum
• Input Voltage Range: 4.5V to 40V minimum
• Topology: Buck (step-down) switching regulator
• Package and Mounting: TO-220-7 through-hole form factor
• Switching Frequency: 150kHz operation
• Temperature Range: -40°C to 125°C (TJ)

The LM2598T-5.0/NOPB qualifies as a direct substitute, maintaining identical electrical specifications and mechanical compatibility while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM2598T-5.0/NOPB is the direct equivalent for the obsolete LM2598T-5.0. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility in existing designs.

The LM2598T-5.0/NOPB offers significant advantages for new designs and component replenishment:

• Active Product Status: Ensures ongoing manufacturing support and availability
• ROHS3 Compliance: Meets current environmental and regulatory requirements, whereas the original part is RoHS non-compliant
• Established Supply Chain: Available in standard tube packaging with documented inventory levels

For applications requiring the LM2598T-5.0, the LM2598T-5.0/NOPB provides equivalent performance with improved compliance and supply reliability.

Frequently Asked Questions (FAQ)

Q: Can the LM2598T-5.0/NOPB be used as a direct replacement for the LM2598T-5.0?

A: Yes. Both parts are electrically and mechanically identical. The LM2598T-5.0/NOPB maintains the same output voltage (5V), output current (1A), input voltage range (4.5V to 40V), switching frequency (150kHz), and TO-220-7 package configuration. Pin-for-pin substitution is valid without circuit modifications.

Q: What is the significance of the "/NOPB" suffix?

A: The "/NOPB" designation indicates lead-free (Pb-free) manufacturing and RoHS3 compliance. This reflects current environmental standards and regulatory requirements for electronic components.

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

A: No. Both components operate across the identical temperature range (-40°C to 125°C TJ) and maintain the same switching frequency and output specifications.

Q: What packaging formats are available?

A: The LM2598T-5.0 packaging format is not specified in available documentation. The LM2598T-5.0/NOPB is supplied in tube packaging, which is standard for through-hole components.

Q: Why is the original LM2598T-5.0 marked as obsolete?

A: Product obsolescence typically reflects manufacturer discontinuation in favor of newer variants with improved compliance certifications and manufacturing processes. The LM2598T-5.0/NOPB represents the current active equivalent.