1 General Description
The RT9470G device are a highly-integrated 3A
switch mode battery charge management and system
power path management device for single cell Li-Ion
and Li-polymer battery. The low impedance power
path optimizes switch-mode operation efficiency,
reduces battery charging time and extends battery life
during discharging phase. The I2C serial interface
with charging and system settings makes the device a
truly flexible solution.
The recommended junction temperature range is
−40C to 125C, and the ambient temperature range
is −40C to 85C.

2 Applications
⚫ Smart Phone/Tablet PC
⚫ Personal Information Appliances
⚫ Portable Device and Accessory

4 Features
⚫ High Efficiency, 1.5MHz, Synchronous
Switch-Mode Buck Charger
 92% Charge Efficiency at 2A from 5V Input
and 3.8V Battery
 Support 3.9V to 13.5V Input Voltage Range
 Average Input Current Regulation (AICR)
 Minimum Input Voltage Regulation (MIVR)
 Minimum Input Voltage Regulation Track
(MIVR Track)
 Charge Current Regulation (CCR)
 Charge Voltage Regulation (CVR)
 Charge Voltage Regulation Track (CVR Track)
 Junction Thermal Regulation (JTR)
⚫ Supports USB On-The-Go (OTG)
 92% Boost Efficiency at 1A with 3.8V Battery
and 5.15V Output
 OTG Current Limit Regulation (OCLR)
 OTG Voltage Limit Regulation (OVLR)
⚫ Protection
 Over-Temperature Protection (OTP)
 VBUS Overvoltage Protection (VBUS OVP)
 Battery Overvoltage Protection (VBAT OVP)
 System Overvoltage Protection (VSYS OVP)
 System Undervoltage Protection (VSYS UVP)
 System Over-Load Protection (VSYS OLP)
 Cycle-by-Cycle Overcurrent Protection (OCP)
 OTG Low Battery Protection (OTG LBP)