HLF LM2576-3.3 / 5.0 / 12 / ADJ – DC-DC Switching Regulator (TO220) Step-Down (Buck) Voltage Regulator | 5 V – 40 V Input | 3 A Output | –40 °C to +125 °C | Through-Hole Package

The HLF LM2576 (TO220) is a monolithic step-down switching regulator capable of delivering up to 3 A output current with high efficiency and minimal external components. Available in fixed output versions (3.3 V, 5 V, 12 V) and an adjustable configuration (ADJ), this regulator provides excellent line and load regulation while ensuring stable operation over a wide input range.
It integrates internal frequency compensation, current limiting, and thermal shutdown for reliable performance in industrial and consumer applications.

Key Features:

• Function: Step-Down (Buck) DC-DC Converter

• Input Voltage Range: 5 V – 40 V

• Output Voltage Options: 3.3 V / 5.0 V / 12 V / Adjustable

• Output Current: Up to 3 A

• Efficiency: Up to 88 % (typ.)

• Operating Temperature: –40 °C to +125 °C

• Switching Frequency: 52 kHz (fixed)

• Low Quiescent Current and High Stability

• Thermal Shutdown and Over-Current Protection

Package: TO220 (Through-Hole Mount)

Applications:

• Step-Down Power Conversion

• Industrial Power Modules

• Consumer Electronics and Battery Chargers

• Automotive and Embedded Systems