DC-DC Step Down Converter 3A – Mini (4.5V~24Vdc to 1.8V 2.5V 3.3V 5V 9V 12Vdc)

Product Introduction:

• Input Voltage: DC 4.5-24V
• Output Voltage: integration adjustable and fixed output, backside can choose fixed output voltage
• Adjustable Range: 0.8-17V,fixed voltage (1.8V 2.5V 3.3V 5V 9V 12V)
• Output Current: 3A (max),actual testing input 12V output 1.5A
• Transform Efficiency: 97.5%(max) (6.5 to 5V 0.7A)
• Switch Frequency: 500KHz
• Output Ripple Wave:20mV (12V to 5V 3A) 20m band width
• Operating Voltage: -40 Celsius-85 Celsius
• Output Overvoltage Protection: no
• Static Current: 0.85MA
• Load Adjust Rate: 1%
• Voltage Adjust Rate: 0.5%
• Dynamic Response Speed:5% 200uS
• Output Short Circuit Protection: yes
• Input Transposition Protection: no
• Enable Control: yes
• Connecting Type: soldering
• Input Way: soldering
• Output Way: soldering/pin
• Soldering Hole Space: 2.54mm

Description:

• The output current is up to 3A, and the long-term operation is 2.1A, and the margin is sufficient.
• With a new scheme design, the circuit design does not require electrolytic capacitors and tantalum capacitors (electrolytic capacitors have a short lifetime and the tantalum capacitors are in danger of explosion). Two large-size solid-state ceramic capacitors (MCCs) for high-end circuits are used.
• 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).
• Adopt high-current shielding inductor, ultra-low internal resistance, and increase conversion efficiency. Reduce heat.
• Ultra-small size, 20 (length) * 11 (width) * 5 (height) mm, the smallest network.
• Ultra-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.
• 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.
• Integrated enable port, default is working mode, low level is off, which brings convenience to control
• Can be used to replace 78 series linear regulators, such as 7805 7812 and so on.