LM2576HVT-5.0/LF02

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVT-5.0/LF02 is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-voltage input applications. It operates with an input voltage range of 4V to 60V and provides a fixed 5V output at up to 3A load current. The device utilizes a buck topology with a typical switching frequency of 52kHz. It is housed in a 5-pin TO-220 package (NEB) with an integrated tab for thermal management. The component supports operation across an extended temperature range from -40°C to +125°C and includes internal features such as a shutdown pin and current limit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch capable of handling input voltages up to 60V
• Fixed 5.0V output option eliminates the need for external feedback resistors
• Includes internal frequency compensation and current limit protection for simplified design
• Features a dedicated shutdown pin for low standby power consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage tolerance
• Pre-regulators for downstream switching regulators
• Battery-powered systems with wide input voltage variations
• Efficient step-down conversion for industrial control circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LF02 against official Texas Instruments documentation to confirm lead-free status and RoHS compliance details. Ensure the ordering part number matches the required TO-220 NEB package variant. Cross-reference datasheet revisions to confirm pinout compatibility and electrical specifications before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a high-voltage source up to 60V. The TO-220 package is suitable for through-hole mounting where thermal dissipation is managed via board copper or heatsinks. Consider the 52kHz switching frequency for inductor sizing and EMI requirements compared to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576HV series of SIMPLE SWITCHER regulators, which are designed for high-efficiency, high-current step-down conversions. The HVT designation indicates a through-hole TO-220 package variant within the family, offering robust thermal performance for continuous 3A loads in demanding environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include LM2576HVT-5.0/NOPB for identical functionality with updated environmental compliance. Other variants in the LM2576HVT series may be considered if different fixed output voltages are needed while maintaining the same package and electrical characteristics.