DESCRIPTION

· The APM80900 is a synchronous buck switching regulator module for high-power LED driving.
· It integrates high-side and low-side N-channel switches, inductor, and capacitors.
· Features cycle-by-cycle controlled on-time method for true average current output.
· Supports PWM and analog dimming, with thermal foldback capability.
· Packaged in a 4 mm × 6 mm × 2.1 mm QFN-32 with wettable flanks.

FEATURES

· Automotive AEC-Q100 qualified, operates from 4.5 to 36 V.
· Integrated components reduce external part count.
· Ultra-low EMI architecture with spread spectrum for EMC improvement.
· High efficiency up to 90% at 1 A output.
· Comprehensive protection features including UVLO and thermal shutdown.

APPLICATIONS

· Suitable for automotive lighting such as daytime running lights and fog lights.
· Ideal for turn/stop lights and interior dimmable lighting.
· Used in map lights and puddle lights for vehicles.