T8305

tm TE CH T8305 PWM Control 18V Step-Down Controller Data Sheet TM Technology Inc. SD6352-1 tm TE CH Features Wide Input Voltage Range: 7V to 18V LED Output Current Up to 3A With External Power MOSFET Soft-start Single pin on/off and brightness control High efficiency (up to 95%) Up to 1MHz switching frequency Typical 5% output current accuracy SOT-23 Lead-free Package Applications CCTV IR LED Driver Lightings Portable Communication Devices Handheld Electronics T8305 PWM Control 18V Step-Down Controller General Description The T8305 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 7V and 18V and provides an externally adjustable output current of up to 3A. Depending upon supply voltage and external components, The T8305 includes the output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. The T8305 is available in SOT23 Lead-free package. Part Number Examples PART NO. T8305AX PACKAGE SOT23 TM Technology, Inc. reserves the right P. 1 to change products or specifications without notice. Publication Date: Mar. 2013 Revision:A tm TE CH Pin Arrangement(Top view) T8305 T8305AX SOT23-6 Pin Description SYMBOL SOP-8 DESCRIPTION ISENSE 1 Connect resistor RS from this pin to VIN to define nom...