Product introduction:

1: Adopt new imported chips.

2: The output current should not be greater than 3A, and the long-term operation should be 2.1A, and the margin is sufficient.

3: With a new design, the circuit design does not require electrolytic capacitors and tantalum capacitors (electrolytic capacitors have a short lifetime and the tantalum capacitors are explosive). Two large-size solid-state ceramic capacitors (MCCs) for high-end circuits are used.

4: 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).

5: Adopt high current shielding inductance, ultra low internal resistance to improve conversion efficiency. Reduce heat.

6: Small size, 20 (length) * 11 (width) * 5 (height) mm.

7: Low quiescent current, quiescent current 0.85 mA. Connected to the car battery without a switch, can be connected to the cigarette lighter line, or ACC power line.

8: The output is integrated with adjustable and fixed voltage. The fixed output is not required to be customized. It can be directly soldered on the board. It is very voltage-sensitive and can be adjusted by potentiometer. It is very versatile.

9: Integrated enable port, default is working mode, low level is off, which brings convenience to control

10: Can be used to replace 78 series linear regulators, such as 7805 7812 and so on.

Module parameters: Module nature: non-isolated buck module (BUCK) synchronous rectification Input voltage: DC 4.5-24V Output voltage: integrated adjustable and fixed output, fixed output voltage on the back Adjustable range (0.8-17V), fixed voltage (1.8V 2.5V 3.3V 5V 9V 12V) Output current: Do not exceed 3A (please pay attention to heat dissipation at full load), the actual test input 12V output within 1.5A without special treatment heat dissipation. Conversion efficiency: up to 97.5% (6.5 to 5V 0.7A) Switching frequency: 500KHz Output ripple: 20mV (12V to 5V3A) 20M bandwidth Operating temperature: industrial grade (-40 ° C to +85 ° C) (the higher the ambient temperature, the lower the output power) Output overvoltage protection: none Full load temperature rise: 40 ° C Quiescent current: 0.85 mA Load adjustment rate: ±1% Voltage regulation rate: ±0.5% Dynamic response speed: 5% 200uS Output short circuit protection: Yes, do not short circuit for a long time Input reverse connection protection: none, input reverse connection protection diode Enable control: Yes, high level operation, low level stop working, high level is 2-5V, low level is about 0V. The default internal pull-up to input positive. Wiring method: welding Input method: welding Output method: welding / pin header Welding hole spacing: 2.54 mm