The ripple is very low, 12V to 5V 3A is only about 10 millivolts, and many ripples in the same line have reached 500 millivolts or more, which will cause an invisible damage to the equipment, which will cause the equipment to work abnormally or damage. IPHONE is Very delicate.
The new scheme adopts synchronous rectification, and the circuit conversion efficiency is very high. When the 6.5V turns 5V 0.7A, the efficiency is as high as 97.5%, and when 12V turns 5V 1A, it also reaches 94%, unlike the peers, the efficiency is only 60-70%. (The efficiency test removes the voltage drop across the input reverse-protection diode and fuse).
Use flat copper wire inductors to maximize conversion efficiency. Reduce heat.
The first network with output overvoltage protection function, input 1.5A fuse, output 5V 300W TVS tube for overvoltage clamp protection, protect USB devices.
Now the peer USB step-down module has no overvoltage protection function. There is a big security risk to the USB device. If you think that the buck module is broken down, 12V is directly added to your IPHONE. Is your IPHONE still spared?
With a new USB identification circuit, it is perfectly compatible with IPHONE, most Android phones, and IPAD.
Short-headed gold-plated borderless USB, long service life, is not comparable to the ordinary USB interface.
Output voltage indicator (red)
Ultra small volume, 26.4 (length) * 15 (width) * 7.4 (height) mm
The input has a reverse connection protection diode, and the input positive and negative poles are not damaged. (The test efficiency of this shop ignores the voltage drop of the input diode and fuse)
Ultra-low quiescent current with a quiescent current of 0.85 mA. Connected to the car battery without a switch, can be connected to the cigarette lighter line, or ACC power line.
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0.50$ celphone charger
Very cheap and easy to use 12volts to 5volts mobile celphone charger
