HOW DOES IT WORK?

Buck 20 Click is based on the MP2316, a fully-integrated, synchronous, rectified, step-down switch converter from Monolithic Power Systems (MPS). The MP2316 uses constant-on-time (COT) control to provide a fast transient response and easy loop compensation. It achieves 3A continuous output current over a wide input supply range and has excellent load and line regulation. In addition, it is characterized by high efficiency over a wide range of load output voltage, which can be easily adjusted using a digital potentiometer, the AD5235 from Analog Devices. This Click board™ is suitable for battery-operated applications offering advanced protection features such as undervoltage, overcurrent, short-circuit detection, and thermal shutdown.

Thanks to the AD5235 digital potentiometer, this Click board™ provides the possibility of selecting a decreased output voltage in the range from 1.3V to 5V, with the appropriate command sent via the SPI serial interface. Also, the AD5235 uses a ready RDY pin, routed to the INT pin of the mikroBUS™ socket, for its instruction completion indication. In addition to the SPI interface, the Buck 20 Click also has a device-enable feature, routed to the RST pin of the mikroBUS™ socket, for power ON/OFF purposes optimizing power consumption (converter operation permission).

This Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the communication lines properly. Additionally, there is a possibility for the MP2316 power supply selection via jumper labeled as VIN SEL to supply the MP2316 from an external power supply terminal in the range from 4V to 19V or with mikroBUS™ power rails. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.

SPECIFICATIONS