RICOH RN5T564 Data Sheet
Summary
The RN5T564 is a high-performance, 7-channel Power Management IC designed for sophisticated electronic systems requiring stable and flexible power delivery. This manual provides comprehensive technical specifications covering advanced features such as multiple LDOs, step-down DC/DC conversion, UVLO protection, and thermal shutdown circuits. It details the full architecture, including pin configurations, operational modes (Power ON/OFF), I2C bus interface protocols, and a complete register map, making it essential documentation for developers integrating complex power regulation into their designs.
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7-channel Power Management IC
RN5T564 Development Specifications
Rev. 1.4
RICOH COMPANY, LTD. Electronic Devices Company
This specification is subject to change without notice.
Page Summary Contents For RICOH RN5T564 Data Sheet
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7-channel Power Management IC RN5T564 Development Specifications Rev. 1.4 RICOH COMPANY, LTD. Electronic Devices Company This specification is subject to change without notice.
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RN5T564 7-channel Power Management IC Table of Contents 1. Outline 2. Feature 3. Pin Configuration 4. Block diagram........................................................................................
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RN5T564 7-channel Power Management IC 10.2.2 MODE Register (Address: 01h) 10.2.3 LDO Setting Voltage Register (Address: 02h)...............................................................................
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 1. Outline RN5T564 is the power management IC for GPS. It integrates 2 high-efficiency Step-down DCDC controllers, 5 Low dropout regulators, Power control logic, ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 3. Pin Configuration (TOP VIEW) GNDD VFB1 VFB2 PWRON PSHOLD DC1EXON SCL RN5T564 RESETO SDA RESETI P1 IN L1 VDD VIND VO5 VO1 IN P1 IN P2 EF QFN0404-28 pin IN P2 IN...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 4. Block diagram VINL1 VINP1 2.2u F 1.0u F LDO1 150m A VO1 Normal Step-down GND DC/DC Converter 1 LDO2 150m A GNDP1 VO2 10u F Normal DC1EXON LDO3 150m A VINP2 GND...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 5. Pin Description No. Name I/O Function I/F Level Notes 1 GNDD G Ground GND 2 VFB2 I Output voltage feedback input of DCDC converter - 3 PSHOLD I Input signal to...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 6. Power ON/OFF Operation 6.1 Power ON/OFF Operation Power on/off Operation: Both “1ms” and “10ms” period of the following timing are min standards. PWRON Pull PS...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 6.2 UVLO (Under Voltage Lock Out) Electrical Characteristics Operating Conditions (unless otherwise specified) Ta = 25℃ Symbol Parameter Condition Min Typ Max Uni...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 7. Reset Function After DCDC2 output is rising, RESETO signal will be “H” after 100ms from the detection voltage detected. (Refer to 6.1.1 Power ON/OFF Operation)...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 8. FUNCTION Blocks 8.1 LDO, DCDC Table LDO1 LDO2 LDO3 LDO4 LDO5 DCDC1 DCDC2 (PLL) (AVDD I/O) (CPU Core) (-) (-) (CPU Core) (CPU I/O) Current Capability 150m A 150...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 8.2 LDO Outline LDO1, 2, 3 in Normal mode, LDO4, 5 in Normal and ECO mode and VREF circuit are integrated. LDO1, 2, 3 are default ON and turned on power on sequen...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 8.2.1 LDO1, 2, 3 Electrical Characteristics Operating Conditions (unless otherwise specified) VINL = 3.6V, CREFO = 1.0μF, Ta = 25℃ Symbol Parameter Condition Min ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 8.2.2 LDO4, 5 Electrical Characteristics Operating Conditions (unless otherwise specified) VINL = 3.6V, CREFO = 2.2μF, Ta = 25℃ Symbol Parameter Condition Min Typ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 8.3 Step-down DC/DC Converter 8.3.1 Step-down DC/DC Converter1 Electrical Characteristics PWM Mode Vin=3.6V, Cout=10μF, L=4.7μH Symbol Parameter Condition Min Typ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 8.3.2 Step-down DC/DC Converter2 Electrical Characteristics Operating Conditions (unless otherwise specified) VINA, VINP = 3.6V, Ta = 25℃ L1=2.2u H, COUT=4.7u F S...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 8.3.3 Step-down DC/DC Converter2 Output Voltage Setting R1=R2*(DVOUT/VFB-1) DVOUT=Set output voltage VINP2 VFB = 0.6V (Internal reference voltage) x 10Cf = Curren...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 9. CPU Interface RN5T564 uses I2C-Bus system for CPU connection through 2-wires. 9.1 I2C BUS I2C-Bus is the interface which is communicated by 2-wire of SCL (Seri...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC (3) Data Transmitting After the start condition, the data is transmitted by 1 byte (8bits). The receiver must send an acknowledge signal to the transmitter whenev...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 9.1.3 I2C-Bus Data Transmission Format When the data is transmitted through I2C-Bus, the transmission format is shown for each mode. The transmitting data is perf...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC (2) Normal Reading Format Retransmission R/W=0(Writing） start condition Transfer of slave Selection of user address (7bit) address (8bit) R/W=1(Reading） Transfer ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 9.1.4 I2C-Bus SDA and SCL Bus Line characteristics AC Characteristics VDD=1.8～4.5V,Ta=-40～85℃ Parameter Symbol Condition Min Max Unit SCL clock frequency f SCL - ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC Internal Register Timing Writing SCL from Master SDA from Master Writing data to user register Acknowledge SDA from Master Internal Register Writing Signal (WRB) ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 10. Register The register, which is readable/ writable through I2C, controls and monitors the state of DCDC and LDO. The register will be reset in the conditions ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 10.2 Register Description 10.2.1 PWRON Register (Address: 00h) The register controls ON/OFF of LDO 1-5 and DCDC1, 2. Initial Bit Name R/W Function 1 0 value 7 DC2...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 10.2.3 LDO Setting Voltage Register (Address: 02h) The register sets the output voltage of LDO4 and 5. Initial Bit Name R/W Function 1 0 value 7 - - Reserved - 0 ...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 11. Electrical Characteristics 11.1 Absolute Maximum Ratings The operation exceeding “Absolute Maximum Ratings”below may cause not only permanent damage to the de...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 12. Electrical Characteristics of Digital Input/Output Pin 12.1 VDD system CMOS Schmitt Input Pin Operating Conditions (unless otherwise specified) VIND = 3.6V, T...
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RN5T564 7-CHANNEL POWER MANAGEMENT IC 13. Package Information ©2009 Rev. 1.4 Page 28
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 29 |
| File Size | 795.78 KB |
| Published | May 27, 2026 |
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Frequently Asked Questions
What are the typical power consumption figures?
At power on (UVLO, RESET_DET, TSHUT, OSC), the consumption current is typically 30 µA; at power off, it is 1 µA.
How does the IC handle low voltage conditions?
It includes Under Voltage Lock Out (UVLO) and Thermal Shutdown Circuitry for protection.
What I/O characteristics are specified for input pins like SCL and SDA?
For VDD system CMOS Schmitt Inputs, the operating range is VDD×0.5 to VDD×0.7 (rising) and VDD×0.3 to VDD×0.5 (falling).
Which protocols allow configuration of this power management IC?
The device supports configuration via an I2C BUS, which utilizes SDA and SCL lines.