Boost regulator built for camera flash — 1.2 A peak, PWM dimming
It delivers up to 1.2 A flash current from a single-cell Li-ion battery or 2.5 V to 6 V rail, with the output regulated at 5.5 V. PWM dimming control lets the host processor set flash intensity on the fly — critical for synchronising with the camera shutter and ambient light sensor feedback loop.
2 MHz switching — small inductor, tight layout
The 2 MHz switching frequency keeps the inductor in the 1 µH to 2.2 µH range, which fits a 0805 or smaller footprint. That matters when the flash module shares a flex or a tight PCB edge with the camera module. The internal switch (yes) eliminates the external MOSFET and its gate-drive loop — one less component to route under the VSON exposed pad.
Package and thermal — 10-VSON with exposed pad
Housed in a 10-VSON exposed-pad package (3x3 mm). Surface-mount only — no socket option.
Temperature range and operating conditions
Supply range is 2.5 V minimum to 6 V maximum — works from a single Li-ion cell (3.0 V to 4.2 V) or a 5 V USB rail. The 5.5 V output is the regulated flash voltage, not the input.
It is current production from Texas Instruments and available through independent distribution.