RT9292

RT9292 Small Package, High Performance, Asyn-Boost Converter for 6 White LEDs General Description The RT9292 is a high frequency and high efficiency asynchronous boost converter for WLED driving application. It integrates a 28V MOSFET to support up to 6 White LEDs for panel backlighting and OLED power applications. Besides, an internal soft start function is integrated to reduce the inrush current. Moreover, the device operates with 1MHz fixed switching frequency for the use of small external components and better EMI performance. For lower voltage application, the IC provides a 26V over voltage protection function for using the lowcost and small output capacitors. The LED current is initially set by the external sense resistor (RSET), and the feedback voltage for the RT9292 series will be 104mV and 330mV respectively. The RT9292 is available in TSOT23-6 and WDFN-8L 2x2 tiny packages to achieve best solution for PCB space and total BOM cost saving considerations. Ordering Information RT9292 Package Type J6 : TSOT-23-6 QW : WDFN-8L 2x2 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Feedback Reference Voltage B : 104mV D : 330mV Richtek products are : ` RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. ` Suitable for use in SnPb or Pb-free soldering processes. Features z VIN Operating Range : 2.5V to 5.5V z 28V Internal Power N-MOSFET Switch z Wide Range PWM Dimming (200Hz to 200kHz) z Minimize the Exter...