HLF LM2596-3.3 / 5.0 / 12 / ADJ – DC-DC Switching Regulator (TO220) Step-Down (Buck) Voltage Regulator | 4 V – 40 V Input | 3 A Output | –40 °C to +125 °C | Through-Hole Package

The HLF LM2596 (TO220) is a high-efficiency step-down (buck) switching voltage regulator capable of providing up to 3 A of continuous output current. It operates over a wide input range from 4 V to 40 V and is available in fixed output versions (3.3 V, 5.0 V, 12 V) as well as an adjustable type.
Its integrated frequency compensation, thermal shutdown, and current-limit protection ensure robust, reliable operation across industrial and consumer applications.

Key Features:

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

• Input Voltage Range: 4 V – 40 V

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

• Output Current: Up to 3 A

• Efficiency: Up to 90 % (typ.)

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

• Switching Frequency: 150 kHz (fixed)

• Internal Thermal Shutdown & Over-Current Protection

• Low Dropout, High Stability Design

Package: TO220 (Through-Hole)

Applications:

• Step-Down Power Supplies

• Industrial and Automotive Power Systems

• Battery Chargers and Portable Devices

• Embedded and Consumer Electronics