
A parametric alternative with a lower maximum input voltage (40V vs 60V); other parameters are similar.
Finding a substitute for the LM2576HVS-ADJ(UMW) requires careful attention to its 60V input rating and 52kHz switching frequency. While alternatives exist, none are direct drop-in replacements, often requiring circuit redesign or having a lower voltage tolerance.
Many alternatives have a lower 40V max input voltage vs. the target's 60V.
Switching frequency changes (e.g., to 150kHz) require redesign of passive components, not firmware.
Most alternatives use the same TO-263 package, but pinout should always be verified.
No, there is no direct drop-in replacement for the LM2576HVS-ADJ(UMW). All known alternatives require either a design modification for a different switching frequency or have a lower maximum input voltage rating.
If the input voltage in your circuit is always below 40V, the LM2576S-ADJ(UMW) is a potential option. If you require 60V input, the LM2596HVS-ADJ(UMW) is functionally similar but requires redesigning external components for its 150kHz switching frequency.
The primary risk is substituting a part with a lower input voltage rating (e.g., 40V) in an application that requires the target's 60V capability, which can lead to device failure.

A parametric alternative with a lower maximum input voltage (40V vs 60V); other parameters are similar.
| Feature / factor | LM2576HVS-ADJ(UMW) | LM2576S-ADJ(UMW) | LM2596HVS-ADJ(UMW) | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TO-263 | TO-263 | TO-263 | TO-263 — Package matches, likely form-fit compatible.; LM2596HVS-ADJ(UMW): Package matches, likely form-fit compatible. | |
| Voltage | 4.5V - 60V | 4.5V - 40V | 4.75V - 60V | 4.5V - 40V / 4.75V - 60V — Maximum input voltage is lower (40V vs 60V). Only usable in applications with Vin < 40V.; LM2596HVS-ADJ(UMW): Input voltage range is compatible. | |
| Switching Frequency | 52 kHz | 52 kHz | 150 kHz | 52 kHz / 150 kHz — Switching frequency matches.; LM2596HVS-ADJ(UMW): Higher frequency requires redesign of external components like the inductor. | |
| Current | 3.0A | 3.0A | 3.0A | 3.0A — Output current matches.; LM2596HVS-ADJ(UMW): Output current matches. |
There is no single 'best' alternative. If your application's input voltage is under 40V, LM2576S-ADJ(UMW) is a strong candidate. If you need the full 60V input range, LM2596HVS-ADJ(UMW) is an option but requires redesigning external components due to a different switching frequency.