This board demonstrates the capabilities of the Microchip MCP19035 600 kHz Synchronous Buck Converter Controller in a typical high-voltage input step-down application. The featured MCP19035 device is a compact, efficient, step-down voltage converter that will convert the input voltage rail (typically 24V) to a 5V regulated output. Various parameters of the converter can be measured using the test points provided on the board.

Input voltage range – 8V to 26V
Output voltage 5V (can be adjusted between 3.3V to 5V by changing one resistor)
Maximum output current of 5A
93% typical efficiency at 5V/5A output and 24V input
600 kHz fixed switching frequency
Overcurrent protection for high and low-side MOSFETs
Power Good (PGOOD) output for monitoring the output voltage quality
Shutdown input for placing the converter in low-power Standby mode
Under-voltage Lockout (UVLO) with 4.5V and 3.9V typical thresholds

Kit Contains

MCP19035 600 kHz High-Voltage Synchronous Buck Controller Reference Design Board
Important Information Sheet

PWM (Pulse Width Modulation) Controllers, Microchip