Buck LED driver with integrated switch
It integrates the switching FET internally, so the bill of materials stays compact — just the inductor, input/output caps, and a few resistors.
28 V ceiling and PWM dimming
Output voltage goes up to 28 V, matching the supply maximum — that covers a string of eight to ten series LEDs in a typical lighting fixture or an IR flood for night-vision cameras. Dimming is via PWM, which means you can vary brightness by modulating the enable pin with a logic-level signal from a microcontroller or sensor; no external DAC needed. The 4.5 V minimum supply lets it run off a standard 5 V rail or a 12 V automotive bus with headroom.
Thermal range and package
The TSOT-23-6 package is a thin SOT-23 footprint, surface-mount only, so it reflows with the rest of the board in a standard lead-free profile.