3A Step Down Power Supply Board Step Down Module Power Supply Module Step Down Board DC-DC Module

Label:Yes Packing List:1Pc Step Down Module Material:plactic Welding hole spacing: 2.54mm Module nature: Non isolated buck module (BUCK) synchronous rectification Size:21*11mm Input voltage: DC 4.5-24V Output voltage: Integrated adjustable fixed output, with fixed output voltage available on the back Adjustable range (0.8-17V), fixed voltage (1.8V 2.5V 3.3V 5V 9V 12V) Output current: 3A (please pay attention to heat dissipation when fully loaded), actual test input 12V, output within 1.5A without special heat dissipation treatment. Conversion efficiency: 97.5% (6.5 to 5V 0.7A) Switching frequency: 500KHz Output ripple: about 20mV (12V to 5V3A) 20M bandwidth Working temperature: Industrial grade (-40 ℃ to+85 ℃) (the higher the ambient temperature, the lower the output power) Output overvoltage protection: None Full load temperature rise: 40 ℃ Quiescent current: 0.85 mA Load adjustment rate: ± 1% Voltage adjustment rate: ± 0.5% Dynamic response speed: 5% 200uS Output short circuit protection: Yes, please do not short circuit for a long time Input reverse protection: None, input reverse protection diode Enable control: Yes, high level operation, low level stop operation, high level 2-5V, low level around 0V. Default internal pull-up to input positive pole. Wiring method: welding Input method: Welding Output method: welding/needle arrangement