TCS3454裕鼎祥咨询电话：139 2843 4054
The TCS3454 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 TCS3454 is available in the SOT-23-6 package and provides space-saving PCB for the application fields.
TCS3454 FEATURES
˙Precision feedback reference voltage: 0.25V (2%)
˙Under Voltage Lockout Protection
˙Over Voltage Protection (OVP) function
˙Over Temperature Protection (OTP) function
˙Wide frequency range and Dimming with Zero-inrush
˙Internal Soft-Start function (SS)
˙Zero Shutdown Current
˙Adjustable Output up to 20V
˙Package: SOT-23-6
TCS3454 APPLICATION
˙Smart Phone LED Backlight
˙Digital Cameras
˙Camcorder
˙PDA LED Backlight
