LM2588T-5.0 Equivalent & Substitute Parts

Part Overview

The LM2588T-5.0 is a boost, flyback, and forward converter switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series. It delivers a fixed 5V output at 5A (switch) and operates across a 4V to 40V input range with a switching frequency of 100kHz to 200kHz. The device is housed in a TO-220-7 through-hole package and supports multiple converter topologies for flexible power management applications.

The LM2588T-5.0 is classified as obsolete. Locating equivalent or substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or repair requirements for systems utilizing this regulator.

Substiute Parts

LM2588T-5.0

Texas InstrumentsIn Stock: 2006LM2588T-5.0 Datasheet

Current PartRFQ

LM2588T-5.0/NOPB

Texas InstrumentsIn Stock: 1296LM2588T-5.0/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2588T-5.0 is determined by strict equivalence across the following critical parameters:

• Identical base product number (LM2588)
• Matching output voltage (5V fixed)
• Matching output current rating (5A switch)
• Identical input voltage range (4V to 40V)
• Identical switching frequency range (100kHz to 200kHz)
• Identical topology support (Boost, Flyback, Forward Converter)
• Identical package type (TO-220-7 Formed Leads)
• Identical operating temperature range (-40°C to 125°C)

The LM2588T-5.0/NOPB is a direct substitute that meets all these criteria. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The LM2588T-5.0/NOPB is the direct substitute for the obsolete LM2588T-5.0. Both parts are electrically and mechanically identical across all functional parameters. The LM2588T-5.0/NOPB is currently in active production status, ensuring availability and supply chain continuity.

The LM2588T-5.0/NOPB carries ROHS3 compliance certification, whereas the original LM2588T-5.0 is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulatory requirements. Both parts maintain identical REACH and ECCN classifications.

Selection between these parts should be based on regulatory compliance requirements and supply availability. The LM2588T-5.0/NOPB is the recommended choice for new designs and ongoing production due to its active status and RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can the LM2588T-5.0/NOPB be used as a direct replacement for the LM2588T-5.0?

A: Yes. The LM2588T-5.0/NOPB is a direct substitute. All electrical specifications, output ratings, input voltage range, switching frequency, topology support, and package configuration are identical. The primary differences are product status (active vs. obsolete) and RoHS compliance certification.

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

A: The "/NOPB" suffix indicates the part is supplied without lead (Pb) plating, consistent with RoHS3 compliance requirements. This is a packaging and compliance designation that does not affect electrical performance or functionality.

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

A: No. Both parts use the TO-220-7 Formed Leads package with identical pinout and mechanical dimensions. They are pin-for-pin compatible and require no circuit board modifications for substitution.

Q: Why is the original LM2588T-5.0 marked as obsolete?

A: The LM2588T-5.0 has been superseded by the LM2588T-5.0/NOPB in Texas Instruments' product portfolio. The newer variant incorporates RoHS3 compliance and remains in active production.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching output voltage (5V fixed), output current (5A switch), input voltage range (4V to 40V), switching frequency (100kHz to 200kHz), topology support (Boost, Flyback, Forward Converter), and package type (TO-220-7). All these parameters are identical between the LM2588T-5.0 and LM2588T-5.0/NOPB.

Q: Are there any temperature or environmental rating differences?

A: No. Both parts operate across the identical temperature range of -40°C to 125°C (junction temperature) and share the same moisture sensitivity level (MSL 1 - Unlimited).