S9 + RT8537 Boost Module Board Repair Boost Board 2A 3.7-5V to 14.2V D5Y5
Adopt flow expansion MOS tube.
The output current is expanded to the rated 1A, which can output as much as 1.5A, using 2A Schottky diodes, and the balance is recharged.
The circuit design does not require electrolytic capacitors and tantalum capacitors (the life of electrolytic capacitors is short, and tantalum capacitors may explode). Three ceramic capacitors currently used in high-end circuits are used.
The ripple is very low, only tens of millivolts, and many of the in the industry have reached 500 millivolts, which will cause an invisible damage to the equipment, and severely cause the equipment to work abnormally or damage.
The same load indicator light and undervoltage indicator (when the battery voltage is less than 2.7V, the indicator light will go out under load, when the battery voltage is 2.7V, the indicator light will be on when the battery voltage is 2.7V, and the indicator light will be slightly off when there is no load. bright)
The circuit conversion efficiency is high. When the efficiency is high, it exceeds 90%. The efficiency of a single-cell lithium battery is also 80%. Unlike some of the , the efficiency is only 60-70%.
Input low power reverse connection protection, if your battery has a 2A protection board, the protection board will protect when the positive and negative poles of the input power supply are reversed. Note that when there is no protection board or the input current is 2A, the input reverse connection protection It will fail and cause damage to the module, remember.
Low quiescent current, the new version, the quiescent current will be less than 100 microamperes. No switch is required to connect to the battery.
Material:pcb
colour:green
Package Contents:
1 * boost module