MCP16502 High-Performance PMIC for SAMA5DX/SAM9X6 MPUs Features Description Input Voltage: 2.7V to 5.5V The MCP16502 is an optimally integrated PMIC, Four 1A Output Current Buck Channels with compatible with Microchips EMPUs (Embedded Micro- 100% Maximum Duty Cycle Capability processor Units), requiring Dynamic Voltage Scaling (DVS) with the use of High-Performance mode (HPM). 2 MHz Buck Channels PWM Operation It is compatible with SAMA5DX and SAM9X6 MPUs, Two Auxiliary 300 mA Low-Dropout Linear which are supported by dedicated device variants that Regulators (LDOs) optimize the solution BOM. 1% Voltage Accuracy for DDR (Buck2 Output), The MCP16502 integrates four DC-DC Buck regulators Core (Buck3 Output) and CPU (Buck4 Output) and two auxiliary LDOs, and provides a comprehensive Pin-Selectable Output Voltages for Buck2: interface to the MPU, which includes an interrupt flag 1.2V, 1.35V, 1.8V 2 and a 1 MHz I C interface. MPU-Specific Built-in Default Channel All Buck channels can support loads up to 1A and are Sequencing and nRSTO Assertion Delay 100% duty cycle-capable. Support of Hibernate, Low-Power and High-Performance Modes with DVS Two 300 mA LDOs are provided such that sensitive analog loads can be supported. Push Button Long Press Time-out Function 2 1 MHz I C Interface for Programming and The DDR memory voltage (Buck2 output) is selectable Diagnostics by means of a 3-state input pin. This method allows greater precision in the output voltage setting by elimi- Low Noise, Forced PWM (FPWM) and Low I , Q nating inaccuracies due to external feedback resistors, Light Load, High-Efficiency Mode Available 2 while minimizing external component count. The I C-Selectable Displacement (16.5%) of PWM voltage selection set allows easy migration across Switching Frequency different generations of memory. Leakage-Free Interfacing to MPU in Any The default power channel sequencing is built-in Operating Condition through Optimized according to the requirements of the MPU. A dedicated ESD Protection pin (LPM) facilitates the transition to Low-Power modes Less than 300 A Low-Power Mode Typical and the implementation of Backup mode with DDR in Quiescent Current Bucks and LDO1 On, No Load self-refresh (Hibernate mode). 10 A Maximum Shutdown Current (V =4.5V, IN The MCP16502 features a low no-load operational T = +105C) J quiescent current and it draws less than 10 A in full Cost and Size-Optimized BOM shutdown. Thermal Shutdown and Current Limit Protection Active discharge resistors are provided on each output. User-Programmable Overcurrent Fault Response All Buck channels support safe start-up into pre-biased 32-Pin 5 mm 5 mm VQFN Package outputs. -40C to +125C Junction Temperature Range The MCP16502 is available in a 32-pin 5 mm x 5 mm VQFN package with an operating junction temperature Applications range from -40C to +125C. High-Performance MPUs Power Supply Solutions C/P, FPGA and DSP Power 2019 Microchip Technology Inc. DS20006275B-page 1MCP16502 Package Types 32 31 30 29 28 27 26 25 1 24 nINTO nSTRT 2 23 nRSTO HPM 3 22 SGND LPM 4 21 SVIN LOUT2 EP 5 20 SDA LVIN 6 19 SCL LOUT1 7 18 nSTRTO SELVL1 8 17 PWRHLD SELV2 9 10 11 12 13 14 15 16 32-Pin 5 mm x 5 mm VQFN Top View DS20006275B-page 2 2019 Microchip Technology Inc. OUT1 OUT4 PVIN1 PVIN4 SW1 SW4 PGND1 PGND4 PGND2 PGND3 SW2 SW3 PVIN2 PVIN3 OUT2 OUT3