LM2593HVT-5.0 Equivalent & Substitute Parts

Part Overview

The LM2593HVT-5.0 is a buck switching regulator IC from Texas Instruments, part of the SIMPLE SWITCHER® series. It delivers a fixed 5V output at 2A from input voltages ranging from 4.5V to 60V, operating at a switching frequency of 150kHz. The device is housed in a TO-220-7 through-hole package and is rated for operation across -40°C to 125°C junction temperature.

This part is currently classified as obsolete. Identifying equivalent and 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

LM2593HVT-5.0

Texas InstrumentsIn Stock: 2028LM2593HVT-5.0 Datasheet

Current PartRFQ

LM2593HVT-5.0/NOPB

National SemiconductorIn Stock: 1231LM2593HVT-5.0/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2593HVT-5.0 is determined by strict equivalence across the following critical parameters:

• Output Voltage & Current: Fixed 5V output at 2A
• Input Voltage Range: 4.5V to 60V minimum and maximum
• Topology & Function: Buck (step-down) switching regulator
• Switching Frequency: 150kHz operation
• Package & Mounting: TO-220-7 through-hole configuration
• Operating Temperature Range: -40°C to 125°C junction temperature
• Output Configuration: Single positive output

The substitute part LM2593HVT-5.0/NOPB meets all these criteria and is therefore classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The LM2593HVT-5.0/NOPB is a direct functional equivalent to the LM2593HVT-5.0. Both devices share identical electrical specifications, package configuration, and thermal operating range. The primary distinction is product status: the original part is obsolete, while the substitute is active and available in current inventory.

Selection of the LM2593HVT-5.0/NOPB is supported by:

• Identical electrical performance across all specified parameters
• Matching package and pinout (TO-220-7 through-hole)
• Equivalent export classification (ECCN EAR99)
• Consistent tariff coding (HTSUS 8542.39.0001)
• Active product status ensuring ongoing availability and supply chain support

No design modifications, PCB layout changes, or thermal management adjustments are required when transitioning from the original part to this substitute.

Frequently Asked Questions (FAQ)

Q: Can the LM2593HVT-5.0/NOPB be used as a direct replacement for the LM2593HVT-5.0?

A: Yes. Both parts are electrically and mechanically identical. They share the same output voltage (5V), output current (2A), input voltage range (4.5V to 60V), switching frequency (150kHz), package type (TO-220-7), and operating temperature range (-40°C to 125°C). No circuit modifications are necessary.

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

A: The "/NOPB" suffix denotes "No Plumbum" (lead-free) packaging. This indicates compliance with lead-free manufacturing standards. Both the original and substitute parts are functionally equivalent; the suffix reflects packaging and manufacturing process differences only.

Q: Are there any compliance or certification differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. The original part is RoHS non-compliant, while compliance status for the substitute is not specified in the provided data. Verify RoHS and REACH compliance requirements with your specific application and supply chain documentation.

Q: Why is the original LM2593HVT-5.0 marked as obsolete?

A: Product obsolescence is determined by the manufacturer and reflects end-of-life status. The substitute part LM2593HVT-5.0/NOPB remains active and available, ensuring continued access to equivalent functionality.

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

A: No. Both parts operate across the same temperature range (-40°C to 125°C junction temperature) and deliver identical switching frequency (150kHz) and output specifications. Thermal performance and PCB layout considerations remain unchanged.

Q: Can I use these parts interchangeably in existing designs?

A: Yes. The identical TO-220-7 package, pinout, and electrical specifications allow direct substitution without PCB redesign or component repositioning. Verify component availability and lead times with your supplier.