PF8121

PF8121 12-channel power management integrated circuit for high performance applications Rev. 5 — 24 February 2021 Product data sheet 1 Overview The PF8121 is a power management integrated circuit (PMIC) designed for high performance consumer applications. It features seven high efficiency buck converters and four linear regulators for powering the processor, memory and miscellaneous peripherals. Built-in one time programmable memory stores key startup configurations, drastically reducing external components typically used to set output voltage and sequence of external regulators. Regulator parameters are adjustable through high-speed I2C after start up offering flexibility for different system states. 2 Features Up to seven high efficiency buck converters Four linear regulators with load switch options RTC supply and coin cell charger Watchdog timer/monitor Voltage and system monitoring circuits One time programmable device configuration 3.4 MHz I2C communication interface 56-pin 8 x 8 QFN package NXP Semiconductors PF8121 12-channel power management integrated circuit for high performance applications 3 Simplified application diagram Coin Cell PF8121 VSNVS RTC Clock MCU VIN: 2.7 V to 5.5 V BUCK1 BUCK2 BUCK3 VDD_MAIN VDD_GPU BUCK4 VDD_CPU BUCK5 VDD_DDRIO BUCK6 BUCK7 LDO1 LDO2 LDO3 LDO4 CONTROL SIGNALS 1.8 V I/O (LV GPIO) 3.3 V I/O (HV GPIO) VDD_SCU SD Card 2.5 V I/O MISC INTERFACING AND I2C COMMUNICATIONS I2C LPDDR Memory DRAM Figure ...