ITEM NAME:DC-DC Step-Down Module 6-24V 12V 24V to 5V 3A Car USB Phone Charger Board A#S Product Description Description: Feature: 1. Using New Original American Imported Chips. 2. Output current 3A, long-term operation 2.1A, sufficient margin. 3. The circuit design does not need electrolytic capacitor and tantalum capacitor (electrolytic capacitor has short life). Three large-size solid-state ceramic capacitors (MCC) are used in the current circuit. 4. Low ripple, 12V to 5V 3A only about 10 millivolts, many ripple peer up to 500 millivolts or larger, will cause an invisible damage to equipment, serious equipment will work abnormally or damage. 5. The new scheme uses synchronous rectifier, which has high conversion efficiency. The efficiency is 97.5% at 6.5V to 5V 0.7A, 94% at 12V to 5V 1A, unlike some of the peers, the efficiency is only 60-70%. The efficiency test removes the voltage drop of the input reverse protection diode and fuse. 6. Use flat copper wire inductance to improve conversion efficiencyand reduce calorific value. 7. The first one with output over-voltage protection function, input 1.5A fuse, output 5V 300W TVS tube has done pressure clamp protection to protect USB device. 8. The new USB identification circuit is compatible for iPhone, most Android phones and for iPad. 9. Short-end gilded endless USB, long service life, is not comparable to ordinary USB interface. 10. Output Voltage Indicator (Red). 11. Input with reverse protection diode. 12. Low static current, static current 0.85 mA. Connecting to car batteries without switching, can be on the charger line, or on the ACC power line. Specification: Modular nature: synchronous rectification of non-isolated buck module (BUCK) Input voltage: DC 6-24V Output voltage: 5.1-5.2V (you can choose between 3.3-6V, if other voltage please inform the palm in advance, default.Use flat copper wire inductance to improve conversion efficiencyand reduce calorific value. The circuit design does not need electrolytic capacitor and tantalum capacitor (electrolytic capacitor has short life).
