XL4015 5A DC-DC Buck Converter Module with Heatsink

High-current adjustable step-down module, 4-38V in to 1.25-36V out, 5A with heatsink.

₹130 + 18% GST

SKU: BOTBIT-PWR-07 · Best for: Powering higher-current loads such as LED strips and motors

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Overview

About XL4015 5A DC-DC Buck Converter Module with Heatsink.

The XL4015 is a high-current adjustable step-down (buck) converter for projects that draw more current than a standard LM2596 module can comfortably handle. Rated for up to 5A with its fitted heatsink, it delivers a stable, efficient lower voltage from a higher DC source.

A multi-turn trimmer sets the output anywhere from about 1.25V to 36V, from an input of roughly 4V to 38V, switching at 180kHz. The onboard aluminium heatsink lets it sustain higher currents than the smaller LM2596 board, making it a favourite for powering strips of LEDs, motors and higher-draw electronics.

At around Rs 130 it offers a lot of current capacity for the money and is widely stocked in India. Many XL4015 boards also come in a version with a current-limit trimmer for basic constant-current charging, useful for battery and LED work.

Key features

Why it stands out.

High-current adjustable step-down, up to 5A with the fitted heatsink

Wide input range of about 4V to 38V DC

Output adjustable from 1.25V up to 36V

Onboard aluminium heatsink for sustained higher-current loads

High switching efficiency, typically up to ~96%

Multi-turn potentiometer for precise voltage setting

Specifications

Selection facts.

Regulator IC	XL4015
Input voltage	4V to 38V DC
Output voltage	1.25V to 36V (adjustable)
Max output current	5A (with heatsink)
Conversion efficiency	Up to ~96%
Switching frequency	180kHz (fixed)
Adjustment	Multi-turn potentiometer
Cooling	Onboard aluminium heatsink
Board size	Approx 52 x 26 x 14mm

Applications

Where it is used.

Powering higher-current loads such as LED strips and motors
Stepping 24V or 12V down to 5V at several amps
Solar and battery projects needing a robust step-down stage
Powering single-board computers and multi-module rigs
Constant-current charging on current-limit XL4015 variants
Any buck job where the LM2596's ~3A limit is too low

Buying guide

How to choose.

Choose the XL4015 over the LM2596 when your load can draw more than about 2-3A, or when you want extra thermal headroom. The larger board and heatsink let it run heavier loads without overheating, though good airflow is still wise near the full 5A rating.

It is buck-only: the output must be below the input. Set the voltage with a multimeter on the trimmer before connecting your circuit. If your board has a second trimmer it is for current limiting (constant current); leave it at maximum unless you specifically want to limit charge current.

Pair it with a heatsink-friendly enclosure or a small fan for sustained high-current use, thick input/output wiring, and a multimeter to set voltage (and current limit if fitted).

FAQ

Common questions.

How is this different from the LM2596 module?

Both are adjustable buck converters, but the XL4015 handles up to 5A with a heatsink versus the LM2596's ~3A limit, and is more efficient. Choose the XL4015 for higher-current loads and better thermal headroom.

Can it really deliver 5A continuously?

5A is the peak rating with the heatsink; for sustained loads keep well within it and ensure good airflow, ideally derating to around 3-4A continuous to keep temperatures safe.

Does it step voltage up?

No, it is a step-down (buck) converter only. The output is always lower than the input. Use an MT3608 boost or XL6009 buck-boost if you need to raise voltage.

What is the second potentiometer for?

On current-limit XL4015 variants the second trimmer sets a maximum output current (constant-current mode), handy for charging batteries or driving LEDs. If you only need voltage regulation, turn it fully up.

Is it available in India?

Yes, the XL4015 5A module with heatsink is commonly stocked by BotBit and ships across India.