FAN5609
Features
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- Parallel LED Driver Supports All Forward Voltages Adaptive VOUT Adjustment to the Highest Diode Voltage Internally Matched LED Current Sources No External ponents Needed to Set LED Current Built-in Charge Pump has Three Modes of Operation:
- Linear Regulation VIN > 4.2V
- 3/2 DC-DC Converter and Regulation 3.6V<VIN<4.2V
- 2/1 DC-DC Converter and Regulation 2.7V<VIN<3.6V Up to 86% Efficiency Low EMI, Low Ripple Up to 80m A Output Current (4 × 20m A) Built-in DAC for Digital or PWM Brightness Control Can be Duty Cycle Modulated between 0 to 18m A 2.7V to 5.5V Input Voltage Range ICC < 2µA in Shutdown Mode 1MHz Operating Frequency Shutdown Isolates Output from Input Soft-Start Limits Inrush Current Short Circuit Protection Minimal External ponents Needed Available in a 14-lead TSSOP Package Available in a 16-lead MLP Package
Applications
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- Cell Phones Handheld puters PDA, DSC, MP3 Players Keyboard Backlight LED Displays
Description
The FAN5609 generates regulated...
