RT9490S Overview
The RT9490S is a prehensive solution that integrates a 5A Buck-Boost switch mode battery charger and system power path management device for 1-2 cell Li-Ion and Li-polymer batteries. Its low impedance power path optimizes switch-mode operation efficiency, which not only reduces battery charging time and extends battery life during the discharging phase. The inclusion of an I2C serial interface allows for a wide...
RT9490S Key Features
- High Efficiency, 750kHz/1MHz/1.5MHz Programmable Frequencies, Synchronous Switch-Mode Buck-Boost Charger
- 96.7% Charge Efficiency at 2A with 9V Input and 8V Battery
- Support 3.6V to 24V Input Voltage Range
- Average Input Current Regulation (AICR)
- Minimum Input Voltage Regulation (MIVR)
- Support USB On-The-Go (OTG)
- 93.8% OTG Efficiency at 2A with 8.4V Battery and 5V Output
- Output Voltage with 10mV Resolution to Support USB-PD
- BAT Current Limit Regulation (BCLR)
- Support Dual Input Selection