JZK 5 Pcs 6-24V 24V 12V to 5V 3A USB Step Down Module DC-DC Converter Buck Module, Efficiency 97.5% Car USB Mobile Phone Charger DIY Module

• Module nature: non-isolated step-down module (BUCK) synchronous rectification. Input voltage: DC 6-20V. Output voltage: 5.1-5.2V. The maximum output current is 3A, 2.1A for long-term operation, and the margin is sufficient.
• Using synchronous rectification, the circuit conversion efficiency is very high, the efficiency is as high as 97.5% when 6.5V to 5V 0.7A, and 94% when 12V to 5V 1A, unlike some peers, the efficiency is only 60-70%.
• The input has a reverse protection diode, and the positive and negative poles of the input will not be damaged. Ultra-low quiescent current, 0.85 mA quiescent current. There is no need to add a switch to connect to the car battery, and it can be connected to the cigarette lighter line or the ACC power line.
• 3 large-size solid-state ceramic capacitors (MCC) are used, which have very low ripple. The 12V to 5V 3A conversion is only about 10 millivolts, which will not cause damage to the device. With output overvoltage protection function, the input has a 1.5A fuse, and the output 5V has a 300W TVS tube overvoltage clamp protection to protect USB devices.
• Package contains: 5 Pcs DC-DC buck down converter 6-24V 12V 24V to 5V 3A. With red output voltage indicator. Ultra-small size, 26.4 *15 *9 mm.

Package contains: 5 pieces of DC-DC buck down converter 6-24V 12V 24V to 5V 3A 1. The maximum output current is 3A, 2.1A for long-term operation, and the margin is sufficient. 2. 3 large-size solid-state ceramic capacitors (MCC) are used, which have very low ripple, only about 10 mV from 12V to 5V 3A, which will not cause damage to the device. 3: Using synchronous rectification, the circuit conversion efficiency is very high, the efficiency is as high as 97.5% when 6.5V to 5V 0.7A, and 94% when 12V to 5V 1A, unlike some of its peers, the efficiency is only 60-70%. 4: Use flat copper wire inductors to maximize conversion efficiency. Reduce heat generation. 5. With output overvoltage protection function, the input has 1.5A fuse, and the output 5V has 300W TVS tube overvoltage clamp protection to protect USB devices. 6. With output voltage indicator (red) 7. Output overvoltage protection: yes, input 1.5A fuse, output 5V with 300W TVS tube clamp protection. 8. Ultra-low quiescent current, quiescent current 0.85mA. There is no need to add a switch to connect to the car battery, and it can be connected to the cigarette lighter line or the ACC power line. Module nature: non-isolated step-down module (BUCK) synchronous rectification Input voltage: DC 6-20V Output voltage: 5.1-5.2V Output current: maximum 3A (please pay attention to heat dissipation at full load), the actual test input is 12V and the output is less than 2A without special treatment for heat dissipation. Switching frequency: 500KHz Output ripple: about 10mV (12V to 5V3A) 20M bandwidth Operating temperature: Industrial grade (-40°C to +85°C) (the higher the ambient temperature, the lower the output power) Size 26.4 *15 *9 mm.