RT9284C

Conceptual RT9284A/B/C Tiny Package, High Performance, Constant Current Switching Regulator for White LED General Description Features The RT9284A/B/C is a compact, high efficient and high integration LED driver. Internal 20V MOSFET can support 2 to 4 White LEDs for backlighting and camera flashing. Highly integration and internal compensation network minimizes as 5 external component counts. Tiny package type of TSOT-23 package provide the best solution for PCB space saving and total BOM cost. Internal 0.1V low current feedback voltage, which minimize the power loss due to the current sense resistor. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency, as one of the LED is open. Floating or pull EN pin low can easily disable this function. For reducing the inrush current, internal soft start function can protect inrush current. Ordering Information RT9284 (- ) z VIN Operating Range: 3.0V to 5.5V z Maximum Output Voltage up to 20V z Dimming with Zero-inrush and Wide Frequency Range of 100 to 100kHz z Over Voltage Protection z Output Current up to 100mA at VOUT = 12V. z Zero Shutdown Supply Current z Minimize the Output Component z Small LC Filter z Internal Soft Start Applications z Camera Flash white Led z Mobile Phone, Smart Phone Led Backlight z PDA Led Backlight z Digital Still Camera z Camcorder Pin Configurations Package Type J5 : TSOT23-5 J6 : TSOT23-6 Operating Temperature Range C : Com...