Microchip — MCP16503 Flexible High Performance High Accuracy PMIC for Industrial MPU Applications

Microchip MCP16503 Flexible High Performance High Accuracy PMIC

Integrated power management IC with four 1A buck regulators, dual LDOs, Dynamic Voltage Scaling, and I²C programmability

Microchip's MCP16503 is a highly integrated power management IC designed for embedded microprocessor applications that require efficient power delivery, Dynamic Voltage Scaling (DVS), and flexible system power sequencing. Combining four 1A buck converters, two 300 mA LDOs, programmable voltage rails, and a high-speed I²C interface in a compact device, it simplifies power tree design while reducing component count and board space.

Modern embedded MPU designs often require multiple voltage rails, DDR memory support, low power operating modes, and precise voltage control. Integrating these capabilities with discrete power devices can increase design complexity and power sequencing challenges. The MCP16503 addresses these requirements by providing built-in sequencing, programmable outputs, low quiescent current operation, and support for Active, Low Power, Hibernate, and High-Performance operating modes.

The device supports resistor-selectable startup voltages, with full voltage adjustment available through I²C commands. Dedicated support for memory rails, safe startup into pre-biased outputs, active discharge, and configurable fault management helps streamline system development across industrial and embedded computing applications.