Buck Regulator, Vin 5-40V, Vout 2-35V 8A with Display

With a wide input voltage range from 5V to 40V, the step-down converter can accurately adjust output voltage and current. The efficiency can be up to 96%, measured at 8A, converting 2-35V output. The input and output use high frequency low resistance electrolytic capacitor, low ripple, and gives a stable output. The buck module has 2 heat sink that could enhance heat dissipation.

Quick Spec

Buck Converter

• Input Voltage: 5V – 40VDC
• Output Voltage: 2V – 35VDC
• Output Current: 8A (Cooling fan should be used if the inductor’s temperature exceeds 65℃)
• Constant Current Range: 0.2A – 8A  (9A Max)
• No-load Current: 20mA
• Max Output Power: 300W
• Conversion Efficiency: 95%
• Operating Frequency: 300kHz
• Output Ripple @ 20MHz Bandwidth: Input 24V; Output 12V, 5A; Approx. Ripple = 50mV (Excluding noise)
• Output short circuit protection
• Load Regulation: ±1%
• Voltage Regulation: ±1%
• Operating Temperature: -40℃ to +85℃
• Weight: 65g

Display

• Measuring Range: 0.0V-100V
• Operating Temperature: -10 ~~ +65
• Power Supply: DC
• Display Type: Digital Only
• Accuracy Class: +-1%
• Dimensions: 48 x 29 x 22 mm
• Display Colour: Red & blue LED (dual display)
• Display: 0.28″ LED digital
• Operating Voltage: DC 4.5 ~ 30V
• Measure Voltage: DC 0 ~ 100V
• Minimum Resolution (V): 0.1V
• Refresh Rate: ≥500ms / times
• Measure Accuracy: 1% (± 1 digit)
• Minimum Resolution (A): 0.01A
• Operating Current: <20mA
• Measure Current: 10A (direct measurement, built-in shunt)
• Operating Humidity: 10 to 80% (non-condensing)
• Weight: 21g

Board Layout

Resources

• Wiring up the Display

Shipping List

• 1 x 35V 8A Buck Regulator
• 1 x Dual Display DC Meter 0-100V 10A