Description

Mini Adjustable Step Down Converter Power Supply Module DC-DC 4.5-16V to 3.3V/5V 4A Buck Step-down Board 98% Efficiency

"Features:

1. Using high-quality materials, the quality is guaranteed

2. Luxurious materials, 2 oz copper clad + immersion gold process

3. Ultra-high conversion efficiency

4. The appearance of the product is exquisite and small

5. Wide application

parameter:

Input voltage: 4.5B~16V

Output voltage: 3.3V/5.2V

Output current: 0~4A

Voltage accuracy; <1%

Linear adjustment rate: <0.5%

Load regulation rate: <1%

Output ripple noise: <20mV

Conversion efficiency: >85%, up to 98%

Static power consumption: <500uA

Working environment: -40℃~85℃

There are two preset voltages, the default output is 5.2V (when charging electronic products such as mobile phones, the line loss can be compensated to achieve a larger charging current), and the output voltage can be adjusted to 3.3V by disconnecting the pad with a soldering iron. Lead out the EN control pin, the default high level has output, and there is no output when low level. Lead out the FB pin, and the output voltage can be changed by changing the FB divider resistor.

Temperature test situation: input 12V, output 5.2V4A, room temperature is 30°, the module is suspended in the air (only fixed by the alligator clips at the input and output ends), after 2 hours of operation, the temperature measuring gun measures multiple times, and the maximum temperature does not exceed 75°. In practical applications, the GND pin can also be welded with other copper foils to dissipate heat.

Note: Do not use this power module for automotive circuits. When the automotive generator starts, the voltage fluctuates greatly, and it is easy to overvoltage and break down the chip!

Package list:

Step-down module*1"