• Input voltage range 5 to 60V
• Switch current limit 1.2A
• Drives LED strings up to 60V
• 400kHz fixed frequency minimizes the external components
• Internal softstart limits the inrush current
• Open LED overvoltage protection
• RoHS Compliant and Halogen Free
• Compact package: SO8E

SY22628 is a DC/DC step-up converter that delivers an accurate constant current for driving LEDs. Operation at a fixed switching frequency of 400kHz allows the device to be used with small value external ceramic capacitors and inductor. LEDs connected in series are driven with a regulated current set by the external resistor. The SY22628 is ideal for driving up to fifteen white LEDs in series or up to 60V.