RT9941 RT9941GQW -- Power Management ICs for Handheld Device
Features
Charger
` Adapter & Battery Two Input with Auto Power Dynamic Path.
` PWR_IN LDO support continuous 1.5A, peak 2A current
` 4.5V to 5.5V Operation Voltage Range with Max. Input 18V from PWR_IN Pin
` Switch Well for LDO and Charger Power MOSFET
` Set Charge Current by ISETA Pin
` Charge Status Indicator
` Interrupt for PWR_IN Plug In/Out Time Out and Charger Done.
` Battery Temperature Monitoring Hysteretic Buck
` Buck 1 for DDR Memory, Adjustable Voltage and 600mA Output Current
` Buck 2 for PDN with 25mV/step I2C Adjustable 800mA Output Current
` Max. Efficiency Up to 90%
LDO
` LDO1 : 3.3V/500mA for I/O, Default ON
` LDO2 : 1.2V/80mA for PLL, Default ON
` LDO3 : 1.2V/80mA for Pre-Core. I2C Adiustable,Sync. with Buck2, Default ON
` LDO4 : 2.5V/50mA for AVDD of USB, ADC, TSC,Default ON
` LDO5 : 3.3V/50mA for AVDD of USB, Default ON
` Minimize the External Component Counts
Other
` System Reset
` Low Voltage Detector
` I2C Compatible Interface
` Power ON Timing Control
RoHS Compliant and Halogen Free
Applications
GPS and PDA
Handheld Devices
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