Programmable Power Management IC for Automotive Applications

The RN5T569 is a power management multi-channel IC (PMIC) for automotive applications.

This IC provides four high-efficiency step-down DCDC converters, seven low-dropout regulators, four GPIOs, an interrupt controller (INTC), and an I2C-Bus interface. This IC can customize the power supply voltage and the power-on/off sequence to meet user-system with using a built-in OTP (One-Time Programmable) memory.

In addition, this IC provides DVS (Dynamic Voltage Scaling), a thermal shut-down function, an overcurrent protection, and a watchdog timer and provides a power-on/off mode which is controllable individually by GPIOx pins.

Document Download


Operating Voltage Range (Maximum Rating)  2.7 V to 5.5 V (6.0 V)
Operating Temperature Range -40°C to 105°C
System I2C-Bus interface 3.4 MHz and 400 kHz
Detector Function System/IO-Voltage-detector, 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 DCDC1 / 2 0.6 V to 3.5 V (Max. 3000 mA)
DCDC3 / 4 0.6 V to 3.5 V (Max. 2000 mA)
Soft-start circuit, Equipped with DVS and Power Save Mode (PSM)
Over Current Limit Protection
LDO Regulators LDO1 / 2 0.9 V to 3.5 V (Max. 300 mA)
LDO3 0.6 V to 3.5 V (Max. 300 mA)
LDO4 / 5 0.9 V to 3.5 V (Max. 200 mA)
LDORTC1 (Always-on, for Coin battery) 1.2 V to 3.5 V (Max. 30 mA)
LDORTC2 (Always-on) 0.9 V to 3.5 V (Max. 10 mA)
Overcurrent Protection and Short-circuit Protection
4-channel GPIOs Interrupt function (level/edge) for input signals
Power-on output signal for external devices
Power on/off input for System’s power up/down
Controllable DCDCx and LDOx by external input
LDORTC2 output via GPIO2 pin
Current Sink for LED via GPIO0/1 pins Max. 15 mA
C32KOUT output via GPIOx as a clock for external devices
nterrupt Controller (INTC)  
Package QFN0707-48-P27 (0.5 mm pitch) with Wettable Flanks


  • Power management IC for car accessories including car audio equipment, car navigation system,and etc.