Microchip TechnologyMCP16502TAE-E/S8BPMIC Solutions

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.

Features and Benefits

•  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

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