UM1350 Datasheet | Union Semiconductor

350mA, LED Lighting Driver UM1350 SOT23-5 General Description The UM1350 is capable of driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. This step-down converter provides an externally adjustable output current of up to 350mA from an input supply between 6V and 30V. It can even reach 8 watts of output power, depending on supply voltage and external ponents. The UM1350 consists of an output switch and a high-side output current sensing circuit that uses an external resistor to set the nominal average output current. Through applying an external control signal to the VSET pin, it can adjust the output current below the...