The RK809 is a complex power-management integrated circuit (PMIC) integrated CODEC for multi-core system applications powered by an external power supply.
The RK809 can provide a complete power management solution with very few external components.
The RK809 provides five configurable synchronous step-down converters. The device also contains 9 LDO regulators, two switches and a battery fuel gauge. Powerup/power-down controller is configurable and can support any customized powerup/power-down sequences (OTP based). A real-time clock (RTC) is also integrated to provide a 32.768-kHz output buffer, and real time function. The RK809 supports 32.768- kHz clock generation based on a crystal oscillator. It also includes Audio CODEC , real ground Head phone driver and ClassD driver.(点击咨询)
RK809’s Features:
1. Input range: 2.7V - 5.5V
2. Accurate battery fuel gauge with two separate battery voltage and current ADC
3. Real time clock(RTC)
4. Low standby current of 25uA (at 32.768KHz clock frequency)
5. Real ground HeadPhone driver
6. 1.3W ClassD PA without external filter inductor
7. OTP Programmable power up/down sequences and voltage
8. High performance Audio CODEC
9. Power channels:
-CH1:Synchronous BUCK converter,2.5A max
-CH2:Synchronous BUCK converter,2.5A max
-CH3:Synchronous BUCK converter,1.5A max
-CH4:Synchronous BUCK converter,1.5A max
-CH5:Synchronous BUCK converter,2.5A max
-CH6~CH7,CH9~CH14:LDOs, 400mA max
-CH8:Low noise, high PSRR LDO,100mA max
-CH15: Switch,1.5A max
-CH16: Switch,3A max
10. Package:7mmx7mm QFN68
RK809’s Typical Application Circuit
RK809’s Block Diagram
RK809’s Package
RK809’s Ordering Information
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