SGM41542.pdf• High Efficiency, 1.5MHz, Synchronous Buck Charger
93% Charge Efficiency at 1A from 5V Input
91% Charge Efficiency at 2A from 5V Input
Optimized for USB Voltage Input (5V)
Selectable PFM Mode for Light Load Efficiency
• USB On-The-Go (OTG) Support (Boost Mode)
Boost Converter with up to 1.2A Output
Boost Efficiency of 93.5% at 0.5A and 92.2% at 1A
Accurate Hiccup Mode Over-Current Protection
Soft-Start Capable with up to 500μF Capacitive Load
Output Short Circuit Protection
Selectable PFM Mode for Light Load Operations
• Single Input for USB or High Voltage Adapters
3.9V to 13.5V Operating Input Voltage Range
20V Absolute Maximum Input Voltage Rating
Programmable Input Current Limit and
DynamicPower Management (IINDPM, 100mA to 3.2A
with100mA Resolution) to Support USB 2.0 and USB
3.0Standards and High Voltage Adaptors
Maximum Power Tracking by Input
Voltage Limit upto 5.4V (VINDPM)
VINDPM Tracking of Battery Voltage
• High Battery Discharge Efficiency with 28mΩ Switch
• Narrow Voltage DC (NVDC) Power Path Management
Instant-On with No or Highly Depleted Battery
Ideal Diode Operation in Battery Supplement Mode
• Ship Mode, Wake-Up and Full System
Reset Capabilityby Battery FET Control
• Flexible Autonomous and I2C Operation
Modes forOptimal System Performance
• Fully Integrated Switches, Current Sense andCompensation
• 10μA Ship Mode Low Battery Leakage Current
• High Accuracy
• ±0.5% Charge Voltage Regulation
• ±5% Charge Current Regulation at 1.5A
• ±10% Input Current Regulation at 0.9A
• Safety
Battery Temperature Sensing (Charge/Boost Modes)
Thermal Regulation and Thermal Shutdown
Input Under-Voltage Lockout (UVLO)
Input Over-Voltage (ACOV) Protection
• Integrated Synchronous Buck Charger
• Integrated NVDC Power Path Management
• Charging Management (Trickle Charge / Constant Current Charge / Constant Voltage Charge / Charge Termination)
• Integrated I2C interface
• I2C Programmable Constant Charge Current, ±5%@1.5A-5A accuracy
• I2C Programmable Constant Voltage,±0.5% accuracy
• I2C Programmable Charge Safety Timer
• Support OTG discharging function and I2C Programmable Output Voltage: 3.9V~5.4V with up 2.4A current
• Support Shipping mode, Low battery leakage current
• Charge Status Indication
• Integrated ADC for System Monitor
• Resistance Compensation (IRCOMP) from Charger Output to Cell Terminal and ICO Support
• NTC for Battery Protection (support JEITA standard)
• Input Under Voltage and Over Voltage Protection
• Internal Cycle by Cycle Over Current Protection
• OTG OCP/OVP Protection
• Battery Over Voltage and Short Protection
• Battery Discharging Over Current and under voltage Protection
• Thermal Regulation and Shutdown
• QFN (24)-4*4 footprint
