LM2576T-ADJ/LF02

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576T-ADJ/LF02 is a monolithic integrated circuit from the SIMPLE SWITCHER series, functioning as an adjustable step-down switching regulator. It supports a maximum input voltage of 40V and delivers up to 3A of output current. The device operates at a fixed switching frequency of 52kHz and provides an adjustable output voltage range starting from 1.23V. Packaged in a TO-220-5 through-hole format, it is designed for efficient DC-DC conversion with excellent line and load regulation capabilities.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic design simplifies buck converter implementation
• Adjustable output voltage via external resistor network
• High efficiency operation reduces thermal management requirements
• Built-in internal oscillator eliminates need for external timing components

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Pre-regulators for switching regulators
• Efficient on-card regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity due to discontinued status. Confirm package integrity and pin alignment against original specifications. Check for moisture sensitivity damage despite MSL rating 1. Validate RoHS compliance documentation. Ensure substitute parts match electrical parameters exactly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select based on required output voltage range and maximum load current needs. Consider thermal dissipation requirements given the TO-220-5 package. Verify input voltage stability within the 40V limit. Evaluate external component availability for the 52kHz switching frequency design.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2576 family of simple switchers. Designed for easy design implementation. Replaced by newer generations in some markets. Maintains compatibility with standard buck converter topologies. Widely used in industrial applications requiring reliable DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576T-ADJ/NOPB serves as a direct parameter equivalent replacement. Both share identical electrical characteristics and pinout configurations. Verify package compatibility during transition. Ensure application circuits remain unchanged due to functional equivalence.