POWER MANAGEMENT SYSTEM DEVICE RN5T568 Series Datasheet Version.1.00 2020.02.05 RICOH Electronic Devices Co., Ltd. POWER MANAGEMENT SYSTEM DEVICE RN5T568 NO. EA-543-200205 1. Outline This IC is the power management IC for GPS-PND/STB/POS/Panel Computer and so on. It integrates four high-efficiency step-down DCDC converters, seven low dropout regulators, power control logic, I2C-Bus Interface, voltage detections, thermal shut-down, etc. 2. Features System I2C-Bus interface 3.4MHz and 400kHz Detector function (System/IO, UVLO, DETVSB) Thermal shutdown function Watchdog timer Power on key input for Systems power up Power on reset output for CPU Flexible power-on/off sequence by OTP Flexible DCDCx and LDOx default-on/off control by OTP High Efficiency Step-down DC/DC Converters DC/DC1 0.6-3.5V Max. 3000mA DC/DC2 0.6-3.5V Max. 3000mA DC/DC3 0.6-3.5V Max. 2000mA DC/DC4 0.6-3.5V Max. 2000mA Soft-start circuit Low Drop Voltage Regulators LDO1 0.9-3.5V Max. 300mA LDO2 0.9-3.5V Max. 300mA LDO3 0.6-3.5V Max. 300mA LDO4 0.9-3.5V Max. 200mA LDO5 0.9-3.5V Max. 200mA LDORTC1 1.2-3.5V Max. 30mA (Always-on, For coin battery) LDORTC2 0.9-3.5V Max. 10mA (Always-on) Overcurrent Protection and Short circuit Protection. 4ch-GPIO Supports interrupt function (level/edge) for input signals Outputs power-on signal for external devices Power on/off input for Systems power up/down DCDCx and LDOx can be controlled by external input GPIO2 can output LDORTC2 GPIO0 and GPIO1 have maximum 15mA sink for LED. GPIOx have Output C32KOUT of internal clock for external devices. Interrupt Controller (INTC) Package QFN0707-48(0.5mm pitch) Process CMOS 2014-2020 Ver.1.0 Page 2