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Power Management IC (PMIC)

The Rockchip RK808-D is a specially designed Power Management IC (PMIC) for the RK3399 System-on-Chip (SoC). The highly integrated device includes 4x buck DC-DC converters, 8x high performance LDOs, 2x low RDS switches, I2C interface, programmable power sequencing and an Real time clock (RTC).


  • Input voltage range: 2.7V to 5.5V
  • 2MHz Switching Frequency for bucks
  • Current mode architecture for best transient performance
  • Internal compensation and soft start
  • I2C Programmable output levels and power sequencing
  • Real time clock (RTC)
  • High efficiency architecture
  • Integrated Vout Discharge Circuit for BUCK and LDO
  • Power:
    • CH1: Synchronous Buck regulator, 5A max
    • CH2: Synchronous Buck regulator, 5A max
    • CH3: Synchronous Buck regulator, 3A max
    • CH4: Synchronous Buck regulator, 2.5A max
    • CH6,CH7,CH9,CH11: Linear regulators, 150mA max
    • CH8: Low noise and high PSRR linear regulator,100mA max
    • CH10,CH12,CH13: Linear regulators, 300mA max
    • CH14: Low RDS switch, 0.2ohm@Vgs=3v
    • CH15: Low RDS switch, 0.2ohm@Vgs=3v
  • Flexible Power Sequence control

Block Diagram

RK808-D Diagram

Last update: April 20, 2020