This module is different from the LM2596 and XL4005 step-down modules on the market, whose chip design power is 15W and 50W respectively. This step-down module in our shop uses the original authentic upgraded chip, which is superior to similar products in input and output voltage range, output power and efficiency. The power can reach 75W, with a very high cost performance. Module highlights: 5A high power high efficiency low ripple strip power indicator light free heat sink!!! Module performance and characteristics: Module nature: Non-isolated step-down module (BUCK) Input voltage: 4-38V (Input please try not to exceed 38V) Output voltage: 1.25-36V continuously adjustable Output current: 0-5A, recommended for use within 4.5A Output power: Recommended for use within 75W. Operating temperature: -40~+85 degrees Operating frequency: 180KHz Conversion efficiency: up to 96% (efficiency is related to input, output voltage, current and differential pressure) Load adjustment rate: S (I) ≤0.8% Voltage adjustment rate: S (u) ≤0.8% Power indicator: Yes Short circuit protection: have (limited current 8A) Overtemperature protection: there is (automatically shut off output after overtemperature) Input backconnection protection: none (if necessary, please insert high current diode in the input string) Installation: 2 3mm screws Connection mode: Welding, with V-IN as input and V-OUT as output Module size: 54mm long, 23mm wide, 18mm high Weight: 16g
Scope of application: This module can be used in the input voltage is higher than the output voltage of the step-down field, such as battery, power transformer, DIY adjustable voltage regulator power supply, 24V vehicle pen meter this power supply, industrial equipment step-down, 12V to 3.3V, 12V to 5V, 24V to 5V, 24V to 12V, 36V to 24V, etc.
Please pay attention to:
Some customers reflect that the module output voltage can not be adjusted, always equal to the input voltage. When you encounter this problem, please rotate the potentiometer counterclockwise more than 10 laps, and then use the module can adjust the voltage normally. Because when the step-down module leaves the factory, the default output voltage is about 20V.