LM2596 DC-DC Stepdown Power Module 6/40V to 5V 3A 2 USB

Step-down (buck) power module based on the LM2596 regulator. It converts a DC input voltage between 6 V and 40 V into a regulated 5 V output, with a maximum current of 3 A.

This module features two USB Type-A ports to directly power peripherals or charge mobile devices. It is particularly useful for deriving 5 V from a 12 V, 24 V battery, or any higher voltage supply.

Specifications

• Chip: LM2596-5.0 (fixed 5 V output)
• Input voltage: 6 V to 40 V DC
• Output voltage: 5 V DC (slightly adjustable around this value)
• Maximum output current: 3 A (depends on input voltage and thermal dissipation)
• USB connectors: 2 x Type-A male
• Efficiency: up to 90% depending on load
• Switching frequency: approximately 52 kHz
• Included protection (overload, overheating)

Note: The maximum 3 A current is only achievable with a reasonable input-output voltage difference. At high input voltages (e.g., 24 V or 40 V), the module may heat up; a heatsink is recommended for heavy loads.