XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module

The XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module is a 180 KHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency, low ripple, and excellent line and load regulation.

This product is a 180 KHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency,  low ripple, and excellent line and load regulation. 

The DC/DC buck module has applications where the input voltage is higher than the output voltage, such as battery, power transformer, DIY adjustable regulated power supply, LCD Monitor and LCD TV portable instrument power supply telecom/networking equipment, 24V vehicle notebook power supply, industrial equipment buck.

This module has an adjustable output Voltage. Also works as a dedicated charger for Lithium Batteries (Li-Ion, LiPo) as it is capable of controlling voltage as well as current. Ex. 12V buck to 3.3V, 12V buck to 5V, 24V buck to 5V,24V buck to 12V, 36V buck to 24V etc.

Applications :

1. Use as a step-down module.

1. Adjust the “voltage potentiometer” so that the output voltage reaches the value you want.

2. Use as a battery charger

1. Make sure you need to charge the battery float voltage and charging current; (if lithium parameters 3.7V/2200mAh, then the float voltage is 4.2V, the maximum charging current 1C, ie 2200mA)
2. Under no-load conditions, adjust the “Voltage potentiometer” so that the output voltage reaches the float voltage; (if to 3.7V rechargeable lithium battery, the output voltage can be adjusted to 4.2V)
3. Use a multimeter to measure the output short-circuit current, while regulating the “current potentiometer” so that the output current reaches a predetermined Charging current value.
4. Factory default is 0.1 times the charging current; (during charging, current is gradually reduced, if the charge current setting is 1A, then when the charge current is less than 0.1A, blue lights turned off, the green light is on, which means that the battery is fully charged)
5. Connected to the battery charge.

(1,2,3,4 steps as Output is unloaded, do not connect the battery)

3. Use as a LED constant current driver module

1. Adjust the “voltage potentiometer” so that the output voltage reaches the value you want.
2. Use a multimeter to measure the output short-circuit current, while regulating the “current potentiometer” so that the output current reaches a predetermined LED operating current.
3. Connect LED, work.

(1,2 steps as Output is unloaded, do not connect LED)

Features :

1. High efficiency up to 96%
2. The built-in thermal shutdown function
3. Built-in current limit function
4. In-Built output short protection function
5. Input reverse polarity protection: None (if required, the high current diode in series with the input).

Package Includes :

1 x XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module