T8308

tm TE CH T8308 PWM Control 800mA Step-Down Converter FEATURES Wide Input Voltage Range: 7V to 30V LED Output Current Up to 800mA Soft-start Single pin on/off and brightness control using DC voltage or PWM High efficiency (up to 97%) Up to 1MHz switching frequency Typical 5% output current accuracy SOT-89 and SOP-8 Lead-free Package Applications LED/Display Back Light Driver Lightings Portable Communication Devices Handheld Electronics GENERAL DESCRIPTION The T8308 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 30V and provides an externally adjustable output current of up to 800mA. Depending upon supply voltage and external components, this can provide up to 24 watts of output power. The T8308 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 T8308 is available in SOT-89 and SOP-8 Lead-free package. PART NUMBER EXAMPLES PART NO. T8308-AX T8308-AD PACKAGE SOT-89 SOP-8 TM Technology, Inc. reserves the right P. 1 to change products or specifications without notice. Publication Date: Oct. 2014 Revision:C tm TE CH PIN ARRANGEMENT(Top view) T8308 PIN DESCRIPTION Symbol LX GND EN ISENSE VIN SOT-89-5 1 2 3 4 5 SOP-8 Description 3 Drain of NDMOS switch 5.6 G...