Description:

180W Step-down：
1. Module properties: Non-isolated step-down constant current, constant voltage module (CC CV) charging module
2. Input voltage: DC 7-32V
3. Output voltage: (1)  DC 0.8-28V continuously adjustable. (2)  Fixed output:Choose between 0.8v-28v
4. Output Current: 8A (when power tube’s temperature exceeds 65 degrees, please add cooling fan)
5. Constant current range: 0.2-8A ( adjustable )
6. Turn lamp current: Constant current value * ( 0.1 ) , turn the lamp current and constant value linkage,
such as constant current value is 3A, turn the lamp current is set to a constant current is 0.1 times (0.1 * 3A = 0.3A).
7. Lowest pressure: 1V
8. Output Power: Maximum power is about 300W
9. Conversion efficiency: Up to about 95%
10. Operating frequency: 300KHZ
11. Output ripple: 20M bandwidth
12. Input 24V output 12V 5A ripple around 50mV (Excluding noise)
13. Output short circuit protection : Yes, constant current
14. Input reverse polarity protection: None
15. Output prevent backflow: None
16. Wiring: Terminal
17. No-load current: Typical 20mA (24V switch 12V)
18. Load regulation: ± 1% ( constant )
19. Voltage regulation: ± 1%
20. Dynamic response speed: 5% 200uS
21. Potentiometer adjustment direction: clockwise (increase) , counterclockwise (decrease),
the potentiometer(CV) closed to the input voltage is used to regulate voltage, the potentiometer(CC)
closed to output voltage is used to regulate current (CC)
22. Operating temperature: Industrial grade (-40 °C to +85 °C) ( please note the actual use
of the power tube temperature , high temperature heat strengthened)
23. Indicator: dual color indicator, charging indicator light is red, the green light means
fully charged ( No load is green )
24. Size(approx): 65 x 47 x 22mm (L x W x H)
25.Precision of constant current and temperature: On the actual test, the module temperature from 25 degrees
to 60 degrees, the constant current value change is less than 5% (5A constant current value)
26. Output short circuit protection: Yes,Constant current (the current setting constant current value)
27.  Input reverse connect protection: NO
28. Output prevent reverse flow: NO
29. Wiring Method: amphenol connector

200W Step-down：
1- Module Name: 12A Step down module
2- Module Properties: non-isolated step-down module (BUCK)
3- Input voltage :4.5-30V (input voltage do not exceed 30V! ! !)
4- Output voltage :0.8-30V continuously adjustable (the default output 5V)
5- Output current :0-12A 100W enhance heat dissipation up to 200W,
6- Working temperature: -40 to +85 degrees
7- Operating Frequency: 300KHz
8- Conversion efficiency: up to 95% (efficiency and input and output voltage, current, pressure related)
9- Short-circuit protection: Yes (limited current 14A), please try not to short-circuit
10- Over-temperature protection: Yes (automatic shutdown after over-temperature output)
11- Input Reverse Polarity Protection: No, (if necessary, please enter the string into the diode)
12- Module dimensions: length 60mm width 51mm height 22mm

300W Step-down：
Module properties: synchronous rectification, non-isolated buck, constant current and constant voltage module, CC CV charging module
Scope of application: high-power LED constant current drive, lithium battery charging (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, NiCd NiMH battery (battery pack) charging, solar panels, wind turbines
Input voltage: 6-40VDC
Output voltage: continuously adjustable (1.2-35VDC) for a long time below 32V (suitable for applications where the input voltage is higher than the output voltage and cannot be boosted)
Output current: maximum 20A, within 15A for a long time (please add a fan to dissipate heat if the temperature of the power tube exceeds 65 degrees, and use derating for high voltage output)
Current limiting range: 0.2-20A (adjustment) If the module exceeds 65 degrees, please add a fan.
Low dropout: 3V
Working frequency: 150KHZ
Conversion efficiency: about 96% higher, the efficiency is related to the pressure difference and the use environment
Output ripple: about 50mV ripple (no noise) 20M bandwidth (for reference only) input 24V measured
Operating temperature: -10 to +75) (Please pay attention to the temperature of the power tube in actual use, if the temperature is too high, please strengthen the heat dissipation or derate the use)
Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease)
Output short-circuit protection: yes (instantaneous protection) constant current (currently set constant current value cannot be short-circuited for a long time)
Input reverse polarity protection: none,
Output anti-backflow: none, for self-charged or inductive loads, an external 2-pole tube is required!
Wiring method: terminal block
Module size: 60*53*30MM

400W Step-down：
Module Name: 15A Voltage Reduction Module
Input voltage: 4-32V
Output voltage: 1.2-32V
Minimum pressure difference between input and output: 1V
Output current: 0-15A
Working temperature: -40~+85 degrees Celsius
Operating frequency: 150KHz
Conversion efficiency: 98%
Short circuit protection: Yes
Overtemperature protection: available
Reverse input protection: None
Module size: 60 * 51 * 22mm

Package Included:

1 Pcs Step Down Buck Converter Power Supply Module