SGM41542.pdf? 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
DynamicPower Management (IINDPM,
100mA to 3.1A with100mA Resolution & 3.8A)
to Support USB 2.0 andUSB 3.0 Standards and
High Voltage Adaptors
Maximum Power Tracking by Programmable
InputVoltage Limit (VINDPM) with Selectable Offset
VINDPM Tracking of Battery Voltage
Auto Detect USB BC1.2, SDP, CDP, DCP
andNon-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 Capabilityby Battery FET Control
? Flexible Autonomous and I2C Operation
Modes forOptimal System Performance
? Fully Integrated Switches, Current Sense
andCompensation
? 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
? High Efficiency 5A 1.5MHz Buck
ModeCharger
Support 3.9V-14V Input Voltage Range
ProgrammableIDPM/VDPM to
Support the USB and Adapter
Support USB SDP/DCP/CDP and
Non-Standard Adapter Detection
3.84-4.608V Adjustable Charge Voltage
Support Narrow VDC Power
PathManagement
JEITA Compliance
±0.5% Charge Voltage Regulation
Accelerate Charge Time by BatteryPath
Impedance Compensation
Charge Status Outputs for
LED or HostProcessor
? Maximum 2.4A 500KHz/1.5MHz
Boost OTGCurrent
4.55-5.51V Adjustable OTG OutputVoltage
Selectable OTG Output Current Limit
Up to 2.4A OTG Current Limit on BUS
±1.5% Output Regulation in BoostMode
? Battery Monitor for Voltage, Temperature
andCharge Current Measurements
? Full BATFET Control to Support ShippingMode,
Wake Up, and System Reset
? Up to 9A Battery Discharge Current
? Safety
Battery Temperature Sensing
forCharge and Boost Mode
Battery Charging Safety Timer
Thermal Regulation and ThermalShutdown
Input/System Over-voltage Protection
MOSFET Over-current Protection
? Low Battery Leakage Current
and SupportShipping Mode
? 4mm x 4mm QFN-24 Package
