• High Efficiency, 1.5MHz, Synchronous Buck Charger 

   95% Charge Efficiency at 1A from 5V Input 

   91.4% Charge Efficiency at 2A from 9V 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 2A Output 

   Boost Efficiency of 93.5% at 0.5A and 94.3% at 1A 

   Accurate Hiccup Mode Over-Current Protection 

   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 

  22V Absolute Maximum Input Voltage Rating 

  Programmable Input Current Limit and Dynamic

  Power Management (IINDPM, 100mA to 3.1A with 

  100mA Resolution & 3.8A) to Support USB 2.0 and
USB

  3.0 Standards and High Voltage Adaptors 

  Maximum Power Tracking by Programmable

  Input
Voltage Limit (VINDPM) with Selectable Offset 

  VINDPM Tracking of Battery Voltage 

  Auto Detect USB BC1.2, SDP, CDP, 

  DCP and
Non-Standard Adaptors

• High Battery Discharge Efficiency with 19mΩ 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 Capability
by Battery FET Control

• Flexible Autonomous and I2
C Operation 

   Modes for
Optimal System Performance

• Fully Integrated Switches, Current Sense and
Compensation 

• External Direct Charging Path Enable Output 

• 9μA Ship Mode Low Battery Leakage Current

• High Accuracy 

  ±0.6% Charge Voltage Regulation (8mV/Step)

  ±5% Charge Current Regulation at 2A 

  ±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