发布者：微桥FP7201 发布时间：2010/1/14 阅读：10767次    关键字： FP7201 LED

FP7201   Constant Current Switching Regulator for White LED IC General Description Download     The FP7201 is a Boost DC-DC converter specifically designed to drive White LEDs with constant current. The device can support 2 to 5 White LEDs for backlighting and camera flashing. Provides a highly efficient regulator and internal compensation network minimizes as 5 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. The non-inverting input of error amplifier connects to a 0.25V precision reference voltage and internal soft-start function can reduce the inrush current.     The FP7201 is available in the TSOT23-6L package and provides space-saving PCB for the application fields. 　 ˙Data Sheet Features ˙Precision Feedback Reference Voltage: 0.25V (4%) ˙Under Voltage Lockout Protection ˙Over Voltage Protection ˙Over Temperature Protection ˙Wide Frequency Range and Dimming with Zero-Inrush ˙Internal Soft-Start ˙Zero Shutdown Current ˙Adjustable Output up to 20V ˙Package: TSOT23-6L