ADM00434

ADM00434 is a MCP19035 300kHz synchronous buck controller evaluation board. This board is a compact, highly efficient, step-down voltage regulator that will convert the input voltage rail (typically 12V) to 1.8V regulated output voltage. The maximum output current for this step-down converter is 15A. The board demonstrates the capabilities of the MCP19035 300kHz synchronous buck converter, as well as Microchip’s high-performance power MOSFET transistors. Test points for various signals are provided for measuring different parameters of the converter. The evaluation board can be modified to support output voltages from 0.9V to 3.3V by changing a single resistor.

• Input voltage range from 8V to 14V
• 1.8V output voltage (can be adjusted by changing one resistor between 0.9V and 3.3V)
• 15A output current capability
• 91% typical efficiency at 1.8V/15A
• 300kHz switching frequency
• On-board high performance power MOSFET transistors
• 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 a low-power Standby mode
• Under Voltage Lockout (UVLO) with 4.2V and 3.6V (typical) thresholds

Contents

MCP19035 (ADM00434) evaluation board, Important information sheet.