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DC-DC adjustable step-down converter 12-120V to 1.25-48V
Features
1: Wide application range
2: Small size
3: Stable operation
4: Built-in overheating, overcurrent, output short circuit protection
5: Built-in soft starter
Module parameters:
DC-DC non-isolated high voltage step-down power supply module
Wide input voltage range: 12V~120V (120V is the maximum voltage, leave some space for long-term operation);
For the first use, it is recommended to connect a power supply greater than 30V;
Adjustable output voltage: adjustable in the range of 1.25V~48V;
Input and output voltage difference: 5V (ie, output voltage < input voltage -5V);
Output current: 1.5A (Max) The value of each input voltage point is different from the value of the output voltage point, please refer to the parameter table below for details;
Built-in overheating, overcurrent, output short circuit protection
Built-in soft starter
Parameters:
Switching frequency: 110kHz
Working temperature: industrial grade (-40 °C to +85 °C)
Board size: 4.4*2*1.4cm
Input mode: IN+ input positive level, IN- input negative
Output mode: OUT+ output positive, OUT- output negative
Instructions:
1. First connect the connecting line between the module and the power supply, and then turn on the power. Remember! Remember! (If the input terminal is live and connected, it is easy to cause a spark, especially when the input voltage of the power supply is high, it may even burn the module's contact pads.)
2. For the first use, it is necessary to connect to a power supply of more than 30V; use a multimeter or voltmeter to measure whether the module's output voltage matches the voltage required by the device.
3. The electrical equipment (load) is connected to the output end of the module.
4. If the difference between the input and output voltage is less than 5V, the output will be unstable or there will be no output.
