RK818-1中文資料瑞芯微數(shù)據(jù)手冊(cè)PDF規(guī)格書

Feature

? Input range: 3.8V - 6V for USB input 2.7V - 4.5V for BAT input

? Switch mode Li-ion battery charger providing charging current up to 3A.

? Power path controller with 5A current path.

? Accurate battery fuel gauge.

? Real time clock RTC

? Low standby current of less than 40uA (at 32KHz clock frequency)

? 2MHz switching frequency for the buck converters

? 1MHz switching frequency for the boost converter

? Fast transient response due to the current mode architecture

? Internal frequency compensation and soft start

? Programmable output voltage and power up/down sequence through I2C interface

? Proprietary circuit architecture achieving high efficiency

? Internal discharge path in off state for BUCs and LDOs

? Power channels:

? Ch1: Synchronous buck converter, 4A max

? Ch2: Synchronous buck converter, 4A max

? Ch3: Synchronous buck converter, 2.5A max

? Ch4: Synchronous buck converter, 2.5A max

? Ch5: Synchronous boost converter, 2.5A max

? Ch6 7, Ch9 and Ch11: LDOs, 150mA max

? Ch8: Low noise, high PSRR LDO ,100mA max

? Ch10, 12,14: LDOs, 300mA max

? Ch13: LDO, 400mA max

? Ch15: Low Rdson switch,0.15ohm Vgs=3V

? Ch16: HDMI5V switch 80mA max

? Ch17 OTG switch 800mA max

? Fixed and programmable power up/down sequences

? Package: 7mmx7mm QFN68