Description

This module utilizes high-quality LM2596 chips, boasting high efficiency (up to 92%), low heat generation, and the ability to easily handle currents exceeding 3A (short-term). For long-term operation, it is recommended to use currents within 2.5A, with additional heatsinks for outputs above 10w.

The module employs machine-mounted components and reflow soldering. Each module undergoes a two-hour burn-in test before shipment to ensure high reliability.

Product Basic Parameters:

• Nature: Non-isolated buck converter
• Rectification Method: Non-synchronous rectification
• Input Voltage: 3.2V-40V
• Output Voltage: 1.25V-35V
• Output Current: 3A (max)
• Conversion Efficiency: 92% (max)
• Switching Frequency: 150KHz
• Output Ripple: 30mV (max)
• Load Regulation: ±0.5%
• Line Regulation: ±2.5%
• Operating Temperature: -40°C to +85°C
• Dimensions: 432114 (LWH) mm
• Input Voltage Range: DC 3.2V-40V (input voltage must be at least 1.5V higher than the desired output voltage; cannot boost voltage)
• Output Voltage Range: DC 1.25V-35V continuously adjustable, high efficiency (up to 92%), max output current of 3A.

Application Scenarios:

1. Vehicle-Mounted Voltage Stabilizer: Simply connect the module’s input to the car cigarette lighter socket to adjust the potentiometer and output voltage between 1.25-30V, easily powering devices such as phones, MP3s, MP4s, PSPs, etc.
2. Power Supply for Electronic Devices: When devices require 3-30V and you have a corresponding voltage power supply, use this module to conveniently adjust the voltage to the required level.
3. System Operating Voltage Testing: During projects, use this module to test various voltage ranges for system operating voltages with ease.

Wiring Instructions:

1. Soldering: Directly solder the power cord to the input (output) ports.
2. Pin Soldering: Insert leads into pins or onto perforated boards; alternatively, add leads and directly solder to PCB.
3. Polarity: IN+ for input positive, IN- for input negative, OUT+ for output positive, OUT- for output negative.

Product Features:

1. Input Voltage Range: DC 3.2V to 40V (input voltage must be at least 1.5V higher than the desired output voltage; cannot boost voltage).
2. Output Voltage Range: DC 1.25V to 35V continuously adjustable, high efficiency (up to 92%), and output current up to 3A.

Usage Instructions:

1. Connect the power supply (3.2-40V), and the power indicator light will illuminate, indicating normal module operation.
2. Adjust the blue potentiometer knob (generally clockwise for voltage increase, counterclockwise for voltage decrease) and use a multimeter to monitor the output voltage until it reaches the desired level.

Precautions:

• For long-term operation, it is recommended to use currents within 2.5A, with additional heatsinks for outputs above 10w.
• To ensure stable output, maintain a minimum voltage difference of 1.5V.
• This module is adjustable; change the output voltage by adjusting the blue potentiometer on the module. The minimum output voltage is 1.25V with a 2V input-output voltage difference.
• Ensure correct polarity for IN-(input negative), IN+(input positive), OUT-(output negative), OUT+(output positive) to avoid damaging the module.
• This module lacks output short-circuit protection; prolonged short-circuit output may damage the module.