The DC-DC module based on LM2596 advocate current to 3.0A, but only to 1.8A. However, being introduced module adds a heatsink, using high-power devices. This module can easily reach 4A, 50W, add heat sink circumstances can reach 75W
The DC/DC buck module applications the input voltage is higher than the output voltage of the buck field, such as battery, power transformer, DIY adjustable regulated power supply, 24V Vehicle notebook power supply, industrial equipment buck.12V buck to 3.3V, 12V buck to 5V,  24V buck to 5V,24V buck to 12V,  36V buck to 24V etc.

chip: XL4015

Module properties: the isolation step-down module (BUCK)

4-38 v input voltage: (please try not to exceed 38 v input)

Output voltage: 1.25-36 v continuous adjustable

Output current: 0-5 a

Output power: 75 w

Working temperature: - 40 ~ + 85 degrees

Working frequency: 180 KHZ

Conversion efficiency: up to 96%

Load regulation: S (I) 0.8% or less (12 v 24 v input, output, load changes from 1 ~ 4.5 A measured)

Voltage regulation: S (u) 0.8% or less (12 v output, 4 a, voltage from 18 ~ 32 v change measured)

Power light: yes

Short circuit protection: (limit current 8 a)

Overtemperature protection: (overtemperature after automatic shut off output)

Input reverse connect protection: no, (such as the need to please in the input string into the high current diode)

Installation method: 2 3 mm wire the self-contained

Connection mode: welding, V - IN for the input, V - OUT for the output