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

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

The XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module operates at a fixed frequency of 180 KHz PWM, designed for efficient reduction of DC voltages. It can handle loads up to 5A with minimal ripple and offers excellent regulation under varying input and output conditions.

Ideal for applications where input voltage exceeds output voltage, such as battery-powered devices, power transformers, DIY adjustable power supplies, LCD monitors, portable instruments, telecom/networking equipment, vehicle accessories, and industrial machinery.

This module features adjustable output voltage capabilities, making it versatile for various setups including charging Lithium-ion (Li-Ion) and Lithium-polymer (LiPo) batteries. Examples include stepping down 12V to 3.3V or 5V, 24V to 5V or 12V, and 36V to 24V, among others.

 

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).

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, i.e. 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)

 

Specifications:

Input voltage range: 4V-38V DC

Output voltage range: 1.25V-36V DC adjustable.

Output current: 0-5A.

Output power: 75W.

High efficiency up to 96%

The built-in thermal shutdown function

Built-in current limit function

In-Built output short protection function

 

Package Includes

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

Video