LM2575HVS-5.0 Equivalent & Substitute Parts

Part Overview

The LM2575HVS-5.0 is a buck switching regulator IC manufactured by Texas Instruments, delivering fixed 5V output at 1A in a TO-263-6 D2PAK package. This part operates across a 4V to 60V input range with a 52kHz switching frequency and is compliant with ROHS3 standards. The device is currently in Last Time Buy status, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	LM2575HVS-5.0
Manufacturer	Texas Instruments
Function	Step-Down (Buck)
Output Voltage	5V Fixed
Output Current	1A
Input Voltage Range	4V to 60V
Switching Frequency	52kHz
Package	TO-263-6, D2PAK (5 Leads + Tab)
Operating Temperature	-40°C to 125°C (TJ)
RoHS Status	ROHS3 Compliant
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution for the LM2575HVS-5.0 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Fixed 5V output voltage
Positive output configuration
Buck topology (step-down regulation)
TO-263-6 or D2PAK-5 package compatibility
Surface mount mounting type

Acceptable Parameter Variations:

Input voltage range: Substitute must support minimum 4V; maximum range may exceed 60V
Output current: Substitute rated at 1A or higher is acceptable
Switching frequency: 52kHz nominal; variations within ±20% acceptable for functional equivalence
Operating temperature: Must support -40°C to 125°C minimum
Compliance: ROHS3 and REACH requirements must be maintained

Substitutes are grouped into two categories: direct equivalents (same 1A output current) and higher-capacity alternatives (3A output current) that provide functional compatibility with enhanced current handling.

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage (Min/Max)	Switching Frequency	Package	Operating Temp	Product Status
LM2575HVS-5.0	Texas Instruments	1A	4V / 60V	52kHz	TO-263-6	-40°C to 125°C	Last Time Buy
LM2575HVS-5.0/NOPB	Texas Instruments	1A	4V / 60V	52kHz	TO-263-6	-40°C to 125°C	Active
LM2575-5.0WU	Microchip Technology	1A	4V / 40V	52kHz	TO-263-6	-40°C to 125°C	Active
LM2575-5.0WU-TR	Microchip Technology	1A	4V / 40V	52kHz	TO-263-6	-40°C to 125°C	Active
LM2575D2T-5G	onsemi	1A	4.75V / 40V	52kHz	D2PAK-5	-40°C to 125°C	Active
LM2575D2T-5R4G	onsemi	1A	4.75V / 40V	52kHz	D2PAK-5	-40°C to 125°C	Active
AP1506-50K5G-13	Diodes Incorporated	3A	4.5V / 22V	150kHz	TO-263-6	-20°C to 85°C	Last Time Buy
LM2576-5.0WU	Microchip Technology	3A	4V / 40V	52kHz	TO-263-6	-40°C to 125°C	Active
LM2576-5.0WU-TR	Microchip Technology	3A	4V / 40V	52kHz	TO-263-6	-40°C to 125°C	Active
LM2576D2T-005G	onsemi	3A	7V / 40V	52kHz	D2PAK-5	-40°C to 125°C	Active
LM2576D2TR4-5G	onsemi	3A	7V / 40V	52kHz	D2PAK-5	-40°C to 125°C	Active

Engineering Selection Recommendations

Direct Equivalents (1A Output Current):

LM2575HVS-5.0/NOPB (Texas Instruments) is the primary recommended substitute. This part maintains identical electrical specifications and package format while offering Active product status, ensuring long-term availability and manufacturing support. It is the direct successor to the Last Time Buy LM2575HVS-5.0.

LM2575-5.0WU and LM2575-5.0WU-TR (Microchip Technology) provide functionally equivalent performance with Active status. These parts operate within the same 52kHz switching frequency and support the full -40°C to 125°C temperature range. The input voltage maximum is reduced to 40V, which is acceptable for applications not requiring the extended 60V capability of the original part.

LM2575D2T-5G and LM2575D2T-5R4G (onsemi) deliver equivalent 1A output current with Active product status. These parts feature improved moisture sensitivity (MSL 1 vs. MSL 3) and support the same operating temperature range. Input voltage minimum is 4.75V, which is compatible with most 5V buck regulator applications.

Higher-Capacity Alternatives (3A Output Current):

LM2576-5.0WU and LM2576-5.0WU-TR (Microchip Technology) provide 3A output capability while maintaining 52kHz switching frequency and -40°C to 125°C operation. These parts are suitable for designs requiring increased current headroom beyond the original 1A specification.

LM2576D2T-005G and LM2576D2TR4-5G (onsemi) offer 3A output with Active status and improved moisture sensitivity. The minimum input voltage of 7V requires verification against application requirements.

Not Recommended:

AP1506-50K5G-13 (Diodes Incorporated) exhibits reduced operating temperature range (-20°C to 85°C) and limited input voltage maximum (22V), making it unsuitable for applications requiring the full -40°C to 125°C specification or extended input voltage range of the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a 3A-rated substitute in place of the 1A LM2575HVS-5.0?

A: Yes. Higher current-rated devices such as LM2576-5.0WU or LM2576-5.0WU-TR are functionally compatible. The 3A rating provides additional current capacity without affecting the 5V fixed output voltage or package compatibility. Circuit design remains unchanged.

Q: What is the difference between TO-263-6 and D2PAK-5 packages?

A: Both designations refer to the same physical package format with 5 leads plus a thermal tab. TO-263-6 and D2PAK-5 are equivalent package types suitable for direct substitution. PCB footprints are compatible.

Q: Why does the LM2575-5.0WU have a lower maximum input voltage (40V vs. 60V)?

A: The Microchip variant is rated for 40V maximum input, while the original Texas Instruments part supports 60V. For applications operating below 40V input, this substitution is fully compatible. Applications requiring 40V to 60V input must use the Texas Instruments LM2575HVS-5.0/NOPB or equivalent high-voltage variants.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, meeting the same environmental and regulatory requirements as the original LM2575HVS-5.0.

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

A: The /NOPB designation indicates "No Plumbum" (lead-free) packaging. This is standard for ROHS3-compliant parts and does not affect electrical performance or compatibility.

Q: Can I substitute the LM2575HVS-5.0 with AP1506-50K5G-13?

A: Not recommended. The AP1506-50K5G-13 operates at -20°C to 85°C, which does not meet the -40°C to 125°C requirement of the original part. Additionally, its 22V maximum input voltage is insufficient for applications requiring the full 60V input range.

Q: Which substitute offers the best long-term availability?

A: LM2575HVS-5.0/NOPB (Texas Instruments) and LM2575-5.0WU (Microchip Technology) both carry Active product status, ensuring continued manufacturing and supply. These are preferred for new designs requiring extended product lifecycle support.

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