SGM41528.pdf• 3.9V to 6.2V Operating Input Voltage Range
• Up to 20V Sustainable Voltage
• Fully Integrated All MOSFETs, Current Sense and
Compensation
• High Efficiency, 2A, 1.5MHz Boost Charger: Up to
92.5% Charge Efficiency with 1A Charge Current
for 7.6V Battery Voltage
• USB OTG with 4.5V to 5.5V Adjustable Output: Up to
2A Output, up to 94.5% Efficiency at 5.1V/1A Output
• Selectable PFM Mode and Out-of-Auto (OOA) Mode
at Light Load Operations
• Narrow Voltage DC (NVDC) Power Path Management
• I2C Port for Flexible System Parameter Setting and
Status Reporting
• Integrated ADC for Monitoring Input Voltage, Input
Current, Battery Voltage, Charge Current, System
Voltage, Battery Temperature and Die Temperature
• High Battery Discharge Efficiency with 13mΩ Switch
• USB BC1.2 and Non-Standard Input Source Adapters
Auto Detection
• Input Current Optimizer (ICO) to Maximize Adapter
Output Current without Overloading
• Programmable Input Current Limit (IINDPM) and
Dynamic Power Management to Support USB
Standard Adapters
• Maximum Power Tracking by Programmable Input
Voltage Limit (VINDPM)
• Safety Features including Configurable JEITA for
Battery Temperature Protection
• Battery Charging Safety Timer
• Thermal Regulation and Thermal Shutdown
• Watchdog Monitoring I2C Operation
• VBUS/System/Battery Over-Voltage Protection
• Output Over-Current Protection for Both Boost
and OTG Buck Mode
• High-efficiency 2-A, 1.5-MHz switch mode boost charger
92.5% Charge efficiency at 7.6-V battery, 1-A charge
Optimized for USB input and 2-cell Li-Ion output
Selectable low power PFM mode for light load
operation with out-of-audio option
• USB On-the-Go (OTG) with adjustable output
from 4.5 V to 5.5 V
Buck converter with up-to 2-A output
94.5% Efficiency at 5-V, 1-A output
Accurate constant current (CC) limit
Output short protection
Selectable low power PFM mode for light load
operation with out-of-audio option
• Single Input to support USB input adapters
Supports 3.9-V to 6.2-V input voltage range with
20-V absolute maximum input voltage rating
Input current limit (500 mA to 3.3 A with 100-
mA resolution) to support USB2.0, USB3.0
standard adapters
Maximum power tracking by input voltage limit
up-to 5.5 V
Auto-detect USB SDP, CDP, DCP, and nonstandard adapters
• Input current optimizer (ICO) to maximize input
power without overloading adapters
• Highest battery discharge efficiency with 15-mΩ
battery discharge MOSFET
• Integrated ADC for system monitoring (BUS
voltage and current, BAT voltage, charge current,
SYS voltage, and NTC and die temperature)
• Narrow VDC (NVDC) power path management
Instant-on works with no battery or deeply
discharged battery
Ideal diode operation in battery supplement mode
• Flexible autonomous and I2C mode for optimal
system performance
• High integration includes all MOSFETs, current
sensing and loop compensation
• High accuracy
±0.4% Charge voltage regulation
±7.5% Charge current regulation
±7.5% Input current regulation
• Safety
Battery temperature sensing in charge and
OTG buck mode
Thermal regulation and thermal shutdown
