LM2576S-ADJ-EV

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576S-ADJ-EV is a SIMPLE SWITCHER 3A step-down voltage regulator manufactured by EVVO. It operates as an adjustable DC-DC buck converter with an input voltage range up to 40V and an adjustable output voltage range from 1.23V to 37V. The device delivers a maximum output current of 3A and utilizes a fixed internal oscillator frequency of 52kHz. It is housed in a TO-263-5L (D2PAK) surface-mount package, designed for high efficiency and minimal external component count.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 52kHz fixed-frequency internal oscillator simplifies design
• Adjustable output voltage capability via external resistor network
• Built-in thermal shutdown and cycle-by-cycle current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient pre-regulators for linear regulators
• Local card regulation in distributed power systems
• Standard off-the-shelf inductor compatible switching supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on the datasheet header, as EVVO may distribute or rebrand components originally specified by National Semiconductor or Texas Instruments. Confirm that the specific suffix 'EV' denotes the intended packaging or quality tier consistent with your supply chain requirements. Ensure the part number matches the exact electrical specifications required for your circuit design before finalizing orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 3A buck converter is needed with wide input voltage tolerance. The adjustable output feature allows flexibility for various load requirements within the 1.23V to 37V range. Consider the TO-263-5L package for adequate thermal dissipation in space-constrained applications without requiring large external heat sinks under normal operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of SIMPLE SWITCHER regulators, known for replacing traditional three-terminal linear regulators. The series offers significant reductions in size and cost while maintaining high efficiency. The LM2576S-ADJ-EV specifically provides the adjustable variant in a surface-mount format, catering to modern PCB assembly needs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible replacements include the LM2576S-ADJ/NOPB from Texas Instruments. Other variants within the LM2576 family may serve as functional substitutes if electrical parameters align with the application requirements.