LM2576S-3.3-EV

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576S-3.3-EV is a fixed-output step-down switching regulator IC manufactured by EVVO, designed for high-efficiency DC-DC conversion. It provides a stable 3.3V output with a maximum load current of 3A. The device operates from an input voltage range up to 40V and utilizes a buck topology with a standard switching frequency of 52kHz. Packaged in a TO-263-5L surface-mount format, it supports positive output configuration and functions within an ambient temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter architecture for efficient voltage regulation
• Fixed 3.3V output capability ensuring consistent power delivery
• High thermal performance via exposed pad D2PAK/TO-263 package design

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Pre-regulator stages for linear post-regulators
• General-purpose 3.3V power supply circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as EVVO on the component marking and datasheet documentation. Confirm the suffix 'EV' corresponds to the specific TO-263-5L package variant. Ensure compliance with RoHS3 standards if required by your assembly specifications. Cross-reference the part number against official EVVO catalogs to validate availability and authenticity before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required at currents up to 3A with an input voltage not exceeding 40V. The 52kHz switching frequency allows for compact passive component selection compared to lower-frequency alternatives. Consider the TO-263-5L package for applications requiring robust thermal dissipation through the PCB copper plane.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of switching regulators, adapted by EVVO. It serves as a direct functional equivalent to industry-standard LM2576 devices, offering identical electrical characteristics and pinouts. The series is widely recognized for its simplicity and reliability in basic buck converter designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include the Texas Instruments LM2576S-3.3 and ON Semiconductor MC34063 variants configured for buck operation. Verify that replacement parts maintain the 3A current rating and 40V maximum input voltage limits to ensure circuit integrity.