LM2576T-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576T-ADJ is a monolithic integrated circuit from the LM2576 series, designed as a step-down switching regulator (buck converter). It supports an input voltage range of 7V to 40V and delivers up to 3A output current. The adjustable output voltage spans from 1.23V to 37V. Operating at a fixed frequency of 52kHz, it features internal compensation for stability. The device includes thermal shutdown and current limiting protection. It is housed in a TO-220 package with five pins and operates within a temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck converter topology with internal oscillator and compensator
• Adjustable output voltage via external resistor divider network
• Built-in thermal shutdown and cycle-by-cycle current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high efficiency
• Pre-regulator circuits for switching regulators
• Simple step-down DC-DC conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer part number against official onsemi documentation to confirm pinout compatibility and electrical specifications. Ensure the component meets RoHS standards if required by the application. Cross-reference datasheet parameters such as maximum input voltage and thermal resistance with system requirements before integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current buck converter is needed for through-hole applications. Consider the 52kHz switching frequency for passive component sizing. Evaluate thermal management needs due to the TO-220 package's heat dissipation characteristics. Verify that the required output voltage falls within the adjustable range supported by the feedback resistor configuration.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 family of simple switcher regulators, widely recognized for ease of design and reliability. The 'T' suffix indicates a through-hole TO-220 package, while 'ADJ' denotes the adjustable output version. It serves as a cost-effective solution for medium-power DC-DC conversion tasks in industrial and consumer electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576T-ADJG is a verified equivalent variant from onsemi with identical electrical specifications and pinout.