300W 12A DC-DC Buck Converter Step-Down 7-32V TO 0.8-28V Adjustable Power Supply Module

300W 12A DC-DC Buck Converter Step-Down 5-40V TO 1.2-35V Adjustable Power Supply Module contains two large aluminum heat sinks ensures a better heat dissipation and more stable performance. And it contains five low resistance capacitors of 470uF/35V in parallel specially for the switch mode power supply, a 23mm large magnet and 1.0 copper wire provides high efficiency work. For safe module operation this module contains a TVs Diode to prevent voltage surge from breaking the chip.This module is widely used for storage battery, power transformers, DIY adjustable regulated power supply, industrial equipment, 12V to 3.3V, 12V to 5V, 24V to 5V, 24V to 12V, etc.

This module can be applied to the input voltage floating relatively large, the output requirements of more stable areas. Such as:

• 12V battery (10-14V) regulated output 12V, 12V power supply to the device, 24V battery regulator 24V; can be used as a car power supply
• Solar panel voltage regulator, solar panel voltage fluctuations are relatively large, this module can regulate the output, to the device power supply or to charge the battery to use.
• Driving high-power LED lights, constant current drive, such as 12V battery drive 4 string LED lights, LED and battery voltage difference between this time.

Features:

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• Fixed turn lamp current is 0.1 times the current value ( Used to identify whether the battery is fully charged When charging).
• Made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current, (when 20°C to 100°C constant current 1A, temperature drift less than 1%). Particularly suitable for LED.
• High output current, the max output current can reach 8A.
• Four high frequency capacitance, can lower output ripple, enhance the work stabilization.
• Double heat sink design. MOS schottky diode independent heat sink,which heat dissipation is good,and won’t affect each other.
• Using large size Sendust Core and double pure copper wiring, improve working efficiency, reduce fever.
• 3296 multiturn potentiometer,high accuracy voltage and current regulation, good stability.
• Double color lamp, working condition be clear at a glance
• Voltage and current are adjustable,wich effect is good.

Parameters:

•  Module Properties: Non-isolated step-down constant current, constant voltage module (CC CV) charging module
• Input Voltage: DC 7-32V
• Output Voltage: (1) DC 1.2-28V continuously adjustable. (2) Fixed output:Choose between 0.8v-28v
• Output Current: 8A (when power tube's temperature exceeds 65 degrees, please add cooling fan)
• Constant Current Range: 0.2-8A (Adjustable)
• 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)
• Lowest Pressure: 1V
• Output Power: Maximum power is about 200W
• Conversion Efficiency: Up to about 95%
• Operating Frequency: 300KHZ
• Output Ripple: 20M bandwidth
• Input 24V output 12V 5A ripple around 50mV (Excluding noise)
• Output Short Circuit Protection: Yes, constant current
• Input Reverse Polarity Protection: None
• Output Prevent Backflow: None
• Wiring: Terminal
• No-Load Current: Typical 20mA (24V switch 12V)
• Load Regulation: ± 1% (Constant)
• Voltage Regulation: ± 1%
• Dynamic Response Speed: 5% 200uS
• 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)
• Operating Temperature: Industrial grade (-40 °C to +85 °C) (please note the actual use of the power tube temperature , high temperature heat strengthened)
• Indicator: dual color indicator, charging indicator light is red, the green light means fully charged (No load is green)
• Size: Approx. 65 x 47 x 23.5mm/2.56 x 1.85 x 0.93''
• 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)
• Output Short Circuit Protection: Yes,Constant current (the current setting constant current value)
• Input Reverse Connect Protection: NO
• Output Prevent Reverse Fow: NO
• Wiring Method: Amphenol connector

Applications:

• High-power LED driver
• Lithium battery (or lead accumulator) charge
• Vehicle-mounted power supply
• Low voltage system power supply
• 6V, 12V, 14V, 24V battery charge
• On-board laptop power supply
• Regulated power supply
• Low voltage power supply system

Package Includes:

1 x 300W 12A DC-DC Buck Converter Step-Down Module