Board Features:The maximum output current of 3A, 2.1A long run, sufficient margin.Using a new design, circuit design does not require electrolytic capacitors andtantalum capacitors (electrolytic capacitor life is short, tantalum capacitorshave the risk of explosion). Using the current high-end circuit with large-sizesolid-state ceramic capacitors (MCC) 3pcs.Ripple is very low, 12V to 5V 3A only 10 mV or so, a lot of ripple rivals havereached 500 mV or greater, the equipment will cause an invisible injury, seriousequipment will cause abnormal or damaged, Iphone Very delicate.The new solution uses synchronous rectification, the circuit conversionefficiency is very high, in the 6.5V to 5V0.7A when the efficiency of up to97.5%, 12V to 5V1A also reached 94%, unlike some efficiency of only 60-70%peers. (The efficiency test removes the voltage drop across the inputreverse-polarity protection diodes and fuses).Use of flat copper inductors, to maximize the conversion efficiency. Reduceheat.The first with output over-voltage protection, input 1.5A fuse, output 5V 300WTVS tube over-voltage clamp protection to protect USB devices are now peer USBbuck module are not over-voltage protection, the USB device There is a verylarge security risk, think about it put it on your iPhone or other phonesUsing the latest USB identification circuit, perfectly compatible with theiPhone, the vast majority of android mobile phones, IPAD.Short gold-plated edge USB, long life, a normal USB interface can match.Output voltage indicator (red)Ultra - small size, 26.4 (L) x 15 (W) x 7.4 (H)mm.Input with a reverse polarity protection diode, input positive and negativepolarity will not be damaged, (OUR test efficiency ignores the input diode andfuse voltage drop)Ultra-low quiescent current, quiescent current 0.85 mA. Connect to the carbattery without adding the switch, you can connect the cigarette lighter line orACC power line.Board Specifications:Input voltage: DC 6-24V, Output voltage: 5.1-5.2VOutput current: maximum 3A (full load, please pay attention to heat), the actualtest input 12V output 2A no special treatment within the cooling.Conversion efficiency: up to 97.5% (6.5 to 5V 0.7A) (short-circuit reversepolarity protection and fuse after the test value)Switching frequency: 500KHzOutput ripple: 10mV or so (12V to 5V3A) 20M bandwidthOutput indication: The output voltage indicator is redOperating temperature: industrial (-40 ? to + 85 ?) (the higher the ambienttemperature, the smaller the output power)Output overvoltage protection: yes, input 1.5A fuse, output 5V 300W TVS tubeclamp protection.Full load temperature rise: 30 ?Quiescent Current: 0.85 mALoad regulation: ± 1%Voltage regulation: ± 0.5%Dynamic response speed: 5% 200uSOutput short-circuit protection: Yes, do not short-circuit for a long timeInput reverse polarity protection: Yes, input reverse polarity protection diodePrice is for one unit only.