SSL21081T - Compact non-dimmable LED driver IC


This device is no longer available.  Please see the EOL notice.
  • Buck driver with integrated 300 V MOSFET
  • Power-efficient boundary conduction mode
  • Tight LED current regulation: better than 5%
  • Direct PWM dimming possible
  • Fast transient response via cycle-by-cycle control
  • No need for binning on LED forward voltage
  • Full set of internal protections
  • Simple design-in
  • High efficiency: up to 95% measured on reference board
  • Low bill of materials: only 14 components for full application
  • Small PCB area: reference design measures only 18 x 22 mm
  • Easy, low-cost manufacturing at high volumes
  • High reliability: IC lifetime easily matches or surpasses LED lamp lifetime

Typical Application


The NXP SSL21081T is a non-dimmable buck LED driver with an integrated power switch of 300 V. The SSL21081T supports applications up to 10 W.


  • Retrofit LED lamps
  • Driver modules for LED lighting