The MCP16502 is an optimally integrated PMIC compatible with Microchip's eMPUs (Embedded Microprocessor Units), requiring Dynamic Voltage Scaling (DVS) with the use of High-Performance mode (HPM). It is compatible with SAMA5DX and SAM9X6 MPUs, which are supported by dedicated device variants that optimize the solution BOM.

The MCP16502 integrates four DC-DC Buck regulators and two auxiliary LDOs, and provides a comprehensive interface to the MPU, which includes an interrupt flag and a 1 MHz I2C interface. All Buck channels can support loads up to 1A and are 100% duty cycle-capable. Two 300 mA LDOs are provided such that sensitive analog loads can be supported. The DDR memory voltage (Buck2 output) is selectable by means of a 3-state input pin. The voltage selection set allows easy migration across different generations of memory. The default power channel sequencing is built-in according to the requirements of the MPU. A dedicated pin (LPM) facilitates the transition to Low-Power modes and the implementation of Backup mode with DDR in self-refresh (Hibernate mode). The MCP16502 features a low no-load operational quiescent current and draws less than 10 μA in full shutdown. Active discharge resistors are provided on each output. All Buck channels support safe start-up into pre-biased outputs.

The MCP16502 is available in a 32-pin 5 mm x 5 mm VQFN package with an operating junction temperature range from -40°C to +125°C. MCP16502 is also available as AEC-Q100 qualified variant.

Check out MCP16502 in action powering the Wireless System-on-Module (WLSOM)

• Input Voltage Range 2.7V to 5.5V
• Four 1A Output Current Buck Channels with 100% Maximum Duty Cycle Capability
• 2 MHz Buck Channels PWM Operation
• ±1% Voltage Accuracy for DDR (Buck2 Output), Core (Buck3 Output) and CPU (Buck4 Output)
• Low Noise, Forced PWM (FPWM) and Low IQ, Light Load, High-Efficiency Mode Available
• I2C-Selectable Displacement (±16.5%) of PWM Switching Frequency
• Two Auxiliary 300 mA Low-Dropout Linear Dropout Regulators (LDOs)
• Pin-Selectable Output Voltages for DDR Supply
• 1MHz I2C Interface for Programming and Diagnostics
• Built-in Channel Sequencing, Safe Start-up and Reset Assertion Delay
• Support of Hibernate, Low-Power and High-Performance Modes with DVS
• Push Button Long Press Time-out Function
• Leakage-Free Interfacing to MPU in Any Operating Condition through Optimized ESD Protection
• Less than 300 µA Low-Power Mode Typical Quiescent Current (Bucks and LDO1 ON, No Load)
• 10 µA Maximum Shutdown Current (VIN= 4.5V, TJ = +105°C)
• Cost and Size-Optimized BOM
• Thermal Shutdown and Current Limit Protection
• User-Programmable Overcurrent Fault Response
• 32-Pin 5 mm × 5 mm VQFN Package
• AEC-Q100 Qualified Variant Available
• -40°C to +125°C Junction Temperature Range