1• Charger and Power Path
– 2-A Output Current on Power Path
– Linear Charger; 700-mA Maximum Charge
Current
– 20-V Tolerant USB and AC Inputs
– Thermal Regulation, Safety Timers
– Temperature Sense Input
• Step-Down Converter (DCDC1, DCDC2,
DCDC3)
– Three Step-Down Converter With Integrated
Switching FETs
– 2.25-MHz Fixed Frequency Operation
– Power-Save Mode at Light-Load Current
– Output Voltage Accuracy in PWM Mode ±2%
– 100% Duty Cycle for Lowest Dropout
– Typical 15-µA Quiescent per Converter
– Passive Discharge to Ground When Disabled
• LDO Regulators (LDO1, LDO2)
– Two Adjustable LDOs
– LDO2 can be Configured to Track DCDC3
– Typical 15-µA Quiescent Current
• Load Switches (LDO3, LDO4)
– Two Independent Load Switches That Can Be
Configured as LDOs
• WLED Driver
– Internally Generated PWM for Dimming
Control
– 38-V Open-LED Protection
– Supports Two Strings of up to 10 LEDs at
25 mA Each
– Internal Low-Side Current Sinks
• Protection
– Undervoltage Lockout and Battery Fault
Comparator
– Always-On Push-Button Monitor
– Hardware Reset Pin
– Password Protected I
2C Registers
• Interface
– I
2C Interface (Address 0x24)
– Password-Protected I
2C Registers