Buck 23 Click Board™

Product Code: MIKROE-5536

. How Does The Buck 23 Click Board™ Work? The Buck 23 Click Board™ is based on the MAX20010C, a high-efficiency, synchronous step-down converter from Analog Devices, providing interface-configurable output voltage range from 0.5V to 1.58V. The MAX20010C offers a factory-preset output voltage of 1V and supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft-start, overcurrent, and overtemperature protections. The wide input/output voltage range, ±2% output voltage accuracy, and the ability to provide up to 6A load current make this Click board™ an ideal solution for on-board point-of-load and post-regulation applications. The MAX20010C features a synchronization input, marked as SYN and routed to the PWM pin of the mikroBUS™ socket, that puts the converter either in skip mode or forced-PWM mode of operation. In PWM mode, the converter switches at a constant frequency with variable on-time. In skip mode, the converter's switching frequency is load-dependent until the output load reaches a certain threshold.

The Buck 23 Click Board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings. Also, the MAX20010C allows choosing its I2C slave address using the SMD jumper labelled ADDR SEL. Besides, it also possesses a power-good function and a device-enable feature. The power-good feature is routed to the red LED marked as PGOOD and PG pin of the mikroBUS™ socket, indicating that the output reached regulation, while the EN pin serves for power ON/OFF purposes optimizing power consumption (converter operation permission). The Buck 23 Click Board™ can operate with either 3.3V or 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 MAX20010C power supply selection via jumper labelled as VDD SEL to supply the MAX20010C from an external power supply terminal in the range from 3V to 5.5V 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 Type Buck Applications Can be used for point-of-load and post-regulation applications On-board modules MAX20010C - synchronous step-down converter from Analog Devices Key Features High efficiency, 6A output current, excellent load regulation, broad output voltage range selectable by serial interface, protection features, wide input range, selectable power supply, and more Interface I2C Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V,External PINOUT DIAGRAM This table shows how the pinout of the Buck 23 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 SYN Synchronization Enable EN 2 RST INT 15 PG Power-Good NC 3 CS RX 14 NC NC 4 SCK TX 13 NC NC 5 MISO SCL 12 SCL I2C Clock NC 6 MOSI SDA 11 SDA I2C Data Power Supply 3.3V 7 3.3V 5V 10 5V Power Supply Ground GND 8 GND GND 9 GND Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description LD1 PWR - Power LED Indicator LD2 PGOOD - Power-Good LED Indicator JP1 VCC SEL Left Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V JP2 ADDR SEL