Multi-channel buck switching regulator module with adjustable DC-DC output

the lm2596 regulator module is a step-down (buck) converter or variable switching regulator that allows for adjusting the output voltage via a multi-turn potentiometer on the board. however, its output current is also important, and therefore, the only solution is to use high current step-down voltage circuits, with the best option being dc step-down regulator modules. the input of the lm2596 dc step-down regulator module, with a 3 amp current, can range from 3 to 40 volts, and this module can simultaneously output four groups of power supplies: 3.3 volts, 5 volts, 12 volts, and adj (adjustable) with a maximum output current of 3 amps, and the total current should not exceed 5a. the lm2596 series regulators are integrated circuit modules that include all the necessary specifications for step-down switching regulators. these regulators can provide a maximum current of 3 amps with line and load regulation for the load. note: the input voltage must be at least 1.5 volts higher than the output voltage. educational point: dc-dc step-down converter modules provide the ability to reduce the input voltage to the required voltage for different parts of the system.

1. industrial automation control
2. led lighting
3. industrial control equipment
4. communication equipment
5. power equipment
6. instrumentation

specifications of the Regulator module with current protection:

1. type: 4-channel power supply module
2. product material: pcb
3. module model: lm2596 power supply
4. chip: lm2596
5. input voltage: 5 volts to 40 volts
6. output voltage: 3.3 volts, 5 volts, 12 volts, adj
7. output current: the maximum current per channel of the module is 3a, and the total current does not exceed 5a.
8. conversion efficiency: 85%
9. output power: 9.9 watts at 3.3 volts, 15 watts at 5 volts, 36 watts at 12 volts, 36 watts at adj
10. quiescent current: 26 milliamperes
11. switching frequency: 150 khz
12. module protection: reverse connection protection
13. module size: approximately 100 × 68 millimeters

Documents:

lm2596 regulator datasheet