kobol-wiki/docs/helios64/pmic.md
Gauthier Provost 5ba93f2c13
Helios64 Hardware Detailed Info (#27)
* Add detailed hardware info for Helios64
    - Button
    - Ethernet
    - Front Panel
    - GPIO
    - I2C
    - Jumper
    - LED
    - M.2
    - PMIC
    - PWM Fan
    - RTC
    - SATA
    - SPI
    - UEXT
    - UPS
    - USB

* Cosmetic upgrade and adapt to latest mkdocs-material version

Co-authored-by: nurix <nurix@pnsnc.local>
Co-authored-by: Aditya Prayoga <aditya@kobol.io>
2020-04-20 16:06:24 +08:00

1.2 KiB

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).

Features

  • 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