LM2576HVS-ADJ-EV

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVS-ADJ-EV is a monolithic integrated circuit designed as a step-down switching regulator capable of driving 3A loads. It operates with an adjustable output voltage range extending up to 57V, supported by a wide input voltage range reaching 60V for the HV variant. The device incorporates a fixed 52kHz internal oscillator and requires minimal external components. It features TTL-compatible shutdown capability for low-power standby modes and includes built-in thermal shutdown and current limiting protections.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Adjustable output voltage configuration utilizing external feedback resistors
• Integrated 52kHz fixed-frequency internal oscillator eliminating external timing components
• TTL-compatible shutdown pin enabling low-power standby operation
• Built-in thermal shutdown and cycle-by-cycle current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• High-efficiency step-down (Buck) power supplies
• Pre-regulators for linear regulators
• Positive-to-negative Buck-Boost converters
• Local card-level regulation systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on the component marking against official EVVO documentation to confirm authenticity. Ensure the package type matches the required TO-263-5L specification. Confirm that the specific suffix indicates the adjustable version rather than a fixed voltage variant. Check RoHS compliance status if restricted substances are a project constraint. Validate supply chain sources through authorized distributors.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an adjustable output voltage is required within a high-voltage input environment. It serves as a direct replacement for standard LM2576HV parts in existing designs requiring higher input tolerance. Consider the thermal performance requirements given the 3A output capability and the need for adequate heat sinking in the TO-263 package. Ensure the external inductor selection aligns with the 52kHz switching frequency.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576HV series of switching regulators, which are widely recognized for their simplicity and robustness in power management applications. The 'EVVO' branding indicates it is sourced from or manufactured by EVVO Semiconductor, positioning it as a compatible alternative to original equipment manufacturer versions within the same functional family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-for-pin replacements include the Texas Instruments LM2576HV-ADJ/NOPB. Other compatible equivalents may be found within the LM2576HV family from various manufacturers, provided they support the 60V input rating and 3A output current.