High integration buck-boost forward (sink) mode charger for
1- to 7-cell Li-Ion
batteries supporting USB PD profile with integrated switching
MOSFETs and loop compensation
Highly efficient
Programmable switching frequency from 450kHz to
1.2MHz
Bypass mode for >98.5% efficiency
USB-PD PPS direct battery charging at 20V, 3A
Selectable PFM with out-of-audio (OOA) operation for
light load efficiency improvement
Supports a wide range of input sources with 2.5V to 36V
operating range and 45V absolute maximum rating
Support VIN
down to 2.5V with VBAT > 3.2V
USB-PD input
Input voltage dynamic
power management (VINDPM) up to 36V to prevent input source
overload
Optional input current
dynamic power management (IINDPM) up-to 3.3A for maximum power
limit
Optional Narrow voltage DC (NVDC)
power path management
System instant-on with depleted or no battery
Battery supplements system when the adapter is fully
loaded
I2C controlled for optimal system
performance with resistor-programmable option
Hardware selectable
default cell count, charge voltage, input and charge current limits
3A charging current with 20mA resolution
Reverse/OTG (source) mode powers input port from battery
3.5V to 34V reverse output voltage with 20mV resolution
to support USB-PD PPS
Up-to 3.3A reverse output current regulation with 20mA
resolution to support USB-PD PPS