RN5T567x
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POWER MANAGEMENT SYSTEM DEVICE RICOH Electronic Devices Co., Ltd. This specification is subject to change without notice.

POWER MANAGEMENT SYSTEM DEVICE

POWER MANAGEMENT SYSTEM DEVICE 1. Outline This IC is the power management IC for GPS-PND/STB. It integrates four high-efficiency step-down DCDC converters, seven low dropout regulators, power control logic, I2C-Bus Interface, voltage detections, thermal shut-down, and etc. Detector Function (System/IO, UVLO, DETVSB) Thermal Shutdown Function Watchdog timer Power on key input for System’s 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 Soft-start circuit ●Low Drop...

POWER MANAGEMENT SYSTEM DEVICE 3. Block Diagram DCDC DC/DC1 0.6V-3.5V, 3000mA With DVS & PSM PWRON SLEEP RESETO POWER CONTROL GPIO With Other Function coin battery

POWER MANAGEMENT SYSTEM DEVICE 4. Electrical Characteristics 4.1 Absolute Maximum Ratings Exposure to the condition exceeded absolute maximum ratings may cause the permanent damages and affect the reliability and safety of both device and systems using the device. The functional operations cannot be guaranteed beyond specified values in the recommended conditions. Symbol Power Supply Voltage 1 Power Supply Voltage 2 Input Voltage Range VOUTPUT Output Voltage Range Storage Temperature Package Allowable Dissipation *VSB : LDORTC1_Output or Coin Battery Table 4-1 Absolute Maximum Ratings PD[W]...

POWER MANAGEMENT SYSTEM DEVICE 4.2 Recommendation of Operating Conditions Symbol Power Supply Voltage Power Supply Voltage Power Supply Voltage VDDIO pin (VSYS > VDDIO) Power Supply Voltage Note*1:VINP1-4 and VINL2 must be equal to VINL1. However, if POWROFF state, VINP1-4 and VINL2 is possible to power-off (Only Parts Mode and then Input pin level must be GND.) Note*2:VINL3 must be less than or equal to VINL1. Table 4-2 Recommendation of Operating Conditions

POWER MANAGEMENT SYSTEM DEVICE 4.3 I/O Electrical Characteristics Symbol VINL1 NMOS Input Pin: PWRON,SLEEP, GPIO0, GPIO1, GPIO2, GPIO3 VIL Low level input voltage High level input voltage VINL1 Nch Open Drain output Pin : RESETO VOL Low level output voltage Low level input voltage High level input voltage Low level output voltage High level output voltage VINL1 Nch Open Drain output Pin : INTB, GPIO0, GPIO1, GPIO2, GPIO3 VOL Low level output voltage VINL1 Nch Open Drain output Pin: GPIO0, GPIO1 (for LED) VOL Low level output voltage VSB Nch Open Drain output Pin: DETVSB VOL Low level output...

POWER MANAGEMENT SYSTEM DEVICE 4.4 Consumption Current Operating Conditions (unless otherwise specified) Standby current Operating current Sleep current Table 4-4 Consumption Current Note*1) Each condition is below. (It is possible to change the enabled LDO/DCDC at PowerOn/Sleep.) PowerOFF Internal Logic

POWER MANAGEMENT SYSTEM DEVICE

POWER MANAGEMENT SYSTEM DEVICE Function DC/DC1 Output voltage feedback input Power supply for DC/DC DC/DC2 switch output DC/DC2 switch output DC/DC2 Output voltage feedback input LDO1 output Power supply for LDO1,2 and DCDC analog Power supply for LDO3,4 and LDO5 LDO4 output LDO5 output GND for Logic circuit,analog circuit, IO and etc Host Reset output Interrupt request output General purpose I/O　Note* PWRON SLEEP External power on signal input Stand-by mode control signal input DC/DC3 Output voltage feedback input DC/DC3 switch output Power supply for DC/DC3 Power supply for DC/DC4 DC/DC4...

POWER MANAGEMENT SYSTEM DEVICE 7. Power Control This PMU has the power-on/off sequence that can be flexibly set by OTP. The default on/off, timing, and voltage of DCDCx and LDOx are programmable. In addition, GPIO0-GPIO3 pins output the power-on/off signal to external LDO/DCDC by the setting of OTP. State Machine Diagram NOSUPPLY VSYS > UVLO recovery voltage VSYS <= UVLO detection voltage VSYS <= VINDET detection voltage Thermal shutdown, Detects the IODET, Detects the DCDC_OC and Writes “1” to DCnLIMSDEN bit VSYS > VINDET recovery voltage POWEROFF Detects the power-on factor Does not...

POWER MANAGEMENT SYSTEM DEVICE 8. Regulators 8.1 Regulators Table Symbol Initial Output Voltage Maximum Output Current External Inductor External Capacitor Output Control Table 8-1 Regulator Table (DC/DC) Symbol Initial Output Voltage Maximum Output Current External Capacitor Output Control Symbol Initial Output Voltage Maximum Output Current External Capacitor Output Control Table 8-2 Regulator Table (LDO)

POWER MANAGEMENT SYSTEM DEVICE 9. MODE This PMU has two Modes selected by OTP. MODE Normal Parts selectable DCDC4EXON and LDO3EXON Table 9-1 Modes and function of pins 9.1 Normal MODE The function of GPIO0-3 pins can be respectively selected by OTP. Note* The function of SLEEP and PWRON pins are respectively decided SLEEP and PWRON. Note*: For details of the function of GPIO* pins, refer to GPIO. SCL SLEEP PWRON RESETO INTB SLEEP PWRON Fig 9-1 The function of pins in Normal mode 9.2 Parts MODE ON/OFF of DCDC1-4 and LDO1-5 can be controlled by pin. SCL Fig 9-2 The function of pins in Parts...

POWER MANAGEMENT SYSTEM DEVICE 10. GPIO This PMU supports four channels of general purpose input/output. GPIO0-3 pins have the function selected by OTP as shown below. VSYS VSYS or VDDIO VSYS or VDDIO VSYS VSYS VSYS VSYS or VDDIO VSYS or VDDIO VSYS VSYS VSYS External input for on factor External LDO*/DCDC* on/off input 32 kHz clock output function Hard RESET input General purpose I/O General purpose I/O PWRON pin monitor Power-on signal output function Power-on signal output function Power-on signal output function Power-on signal output function LDORTC2 output LED function PSHOLD (power-on...

POWER MANAGEMENT SYSTEM DEVICE The products and the product specifications described in this Data Sheet are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. This Data Sheet may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the...