#Adjustable DC-DC Step-Down Buck Controller Module (Available in 2 models: LM2596S and XL4015)

Product Specifications
Product Type: DC-DC Step-Down Buck Converter Module

Model 1 (LM2596S):
Input Voltage: 4.5V - 40V
Output Voltage: Adjustable from 1.25V - 35V
Max Output Current: 3A (Recommended for continuous use under 2A; add a heatsink if operating at higher currents)

Model 2 (XL4015 - DC-DC 5A 4-38VDC):
Input Voltage: 4V - 38V
Output Voltage: Adjustable from 1.25V - 36V
Max Output Current: 5A (Recommended for continuous use under 4A; a cooling fan is advised for heavy loads)
Switching Frequency: 150 kHz (for both models)

Applications
Used to step down direct current (DC) voltages from a higher power source to a desired lower voltage, such as converting 24V or 12V down to 5V or 9V to power microcontroller boards, LEDs, or charge electronic devices.
Used to precisely adjust the output voltage by turning the onboard potentiometer.
⚠️ Recommendations & Warnings
Caution: Never reverse the positive (+) and negative (-) polarities (double-check the IN+, IN-, OUT+, and OUT- connections before powering on), as this may instantly damage the circuit.
Voltage Rule: The input voltage must always be at least 1.5V - 2V higher than the output voltage for proper voltage conversion.
This product comes with no warranty, as it is an exposed electronic module (PCB) sensitive to user wiring errors.
Claim Conditions: Customers must record an uninterrupted video clip starting from opening the parcel box through inspecting the product to use as evidence for claims in case of damage.
Store Shipping Schedule
Monday - Friday: Orders cut off at 2:00 PM
Saturday: Orders cut off at 1:00 PM
Sunday: Closed (No shipping)
Orders placed after the cutoff time and on Sunday will be shipped on the next business day.