LM2575HVN-5.0 Equivalent & Substitute Parts

Part Overview

The LM2575HVN-5.0 is a buck switching regulator IC from Texas Instruments, 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 4V to 60V and is housed in a 16-DIP package with a switching frequency of 52kHz. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

LM2575HVN-5.0

Texas InstrumentsIn Stock: 2148LM2575HVN-5.0 Datasheet

Current PartRFQ

LM2575-5.0YN

Microchip TechnologyIn Stock: 4339LM2575-5.0YN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2575HVN-5.0 is determined by the following critical parameters:

• Fixed output voltage of 5V
• Output current rating of 1A
• Buck topology with step-down function
• 16-DIP through-hole package configuration
• Switching frequency of 52kHz
• Operating temperature range of -40°C to 125°C
• Single positive output configuration

The LM2575-5.0YN from Microchip Technology qualifies as a direct substitute based on matching all core electrical specifications and package requirements. While the maximum input voltage differs (40V vs. 60V), this represents a functional constraint rather than a disqualification, as applications requiring the full 60V input range would need alternative solutions.

Parameter Comparison

Engineering Selection Recommendations

The LM2575-5.0YN from Microchip Technology is the primary substitute for the obsolete LM2575HVN-5.0. This selection is supported by:

• Identical electrical performance across all core specifications (output voltage, current, switching frequency, and operating temperature range)
• Identical package footprint and pinout compatibility (16-DIP)
• Active product status, ensuring long-term availability and supply chain continuity
• ROHS3 compliance, meeting modern regulatory requirements for new designs and manufacturing environments
• Equivalent base product architecture (LM2575 series)

Applications operating within the 4V to 40V input range will experience no functional differences. Systems requiring input voltages above 40V must evaluate alternative buck regulator solutions with higher input voltage ratings.

Frequently Asked Questions (FAQ)

Q: Can the LM2575-5.0YN be used as a direct replacement in existing LM2575HVN-5.0 designs?

A: Yes, for applications within the 4V to 40V input voltage range. The parts share identical pinout, package footprint, output voltage, current rating, and switching frequency. PCB layout and external component values require no modification.

Q: What is the primary limitation of the LM2575-5.0YN substitute?

A: The maximum input voltage is 40V compared to 60V for the original part. Applications requiring input voltages above 40V cannot use this substitute and must select alternative buck regulators with higher input voltage specifications.

Q: Why is the LM2575HVN-5.0 classified as obsolete?

A: The part is no longer manufactured by Texas Instruments. The LM2575-5.0YN represents the active equivalent from Microchip Technology, which acquired or licensed the LM2575 design.

Q: Are there packaging differences between these parts?

A: Both parts use 16-DIP (0.300", 7.62mm) through-hole packages. The LM2575-5.0YN is supplied in tube packaging, while the original was supplied in standard packaging. This does not affect electrical performance or PCB compatibility.

Q: Does the RoHS compliance difference affect substitution?

A: The LM2575-5.0YN is ROHS3 compliant, while the original is non-compliant. For new designs and manufacturing environments subject to RoHS regulations, the substitute provides regulatory advantage. Existing systems using the original part are not affected by this difference.

Q: What external components are required for both parts?

A: Both the LM2575HVN-5.0 and LM2575-5.0YN require identical external component configurations, including input/output filtering capacitors and an inductor. Refer to the respective datasheets for specific component values and PCB layout guidelines.