RK806-1

The RK806 is a complex power-management integrated circuit (PMIC). The RK806 can provide a complete power management solution with very few external components. The RK806 provides 10 fast load transient synchronous step-down converters. The device also contains 6 LDO regulators, 5 NMOS LDO regulators for high efficiency. Power-up/powerdown controller is configurable and can support any customized power-up/power-down sequences (OTP based). The RK806 integrates 10 channels step-down DC-DC converters. All of them adopt ripple base control to achieve very fast load transient response. Meanwhile, all of them can dynamically adjust the output voltage, as required by the processor based on the processor’s operation status so as to maximize the system efficiency. The output voltages of most channels can be configured through the I2C or SPI interface. The inputs of all channels have soft start function, which greatly reduces the inrush current at the startup. 2MHz switching frequency and good control method decrease the external inductance.