RK817 Datasheet | Rockchip

RK817 Datasheet Rev 2.1 Rockchip RK817 Revision 2.1 Mar. 2023 Copyright ©2023 Rockchip Electronics Co., Ltd. RK817 Datasheet Rev 2.1 Chapter 1 Introduction 1.1 Overview The RK817 is a plex power-management integrated circuit (PMIC) integrated CODEC for multi-core system applications powered by a Li-ion or a Li-ion polymer battery cell, or by a 5V input either from an USB port or from an adaptor. The RK817 can provide a plete power management solution with very few external ponents. The RK817 provides four configurable synchronous step-down converters. The device also contains 9 LDO regulators, one switching-mode bi-direction charger, the power path management function, and a battery fuel gauge. Power-up/power-down controller is configurable and can support any customized power-up/power-down sequences (OTP based). A real-time clock (RTC) is also integrated to provide a 32.768k Hz output buffer, and real time function. The RK817 supports 32.768-k Hz clock generation based on a crystal oscillator. It also includes Audio CODEC, real ground Head phone driver, Class-D driver, and Micro-phone input. The RK817 integrates four 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 interface. The inputs of all channels have soft start function, which greatly reduces the inrush current at the startup. 2.5MHz switching frequency and good control method decrease the external inductance and capacitance. The RK817 integrates nine channels LDO regulators. The LDO3 is high PSRR (75d B @1Khz) high accuracy low drop-out regulator. The inputs of all LDO regulators could be decrease to 2V for high convert efficiency. The output voltages of all LDO...