The Texas Instruments TPS65561RGTR is a dedicated photoflash capacitor charger IC designed to drive xenon flash tubes in camera strobes, studio lighting, and portable flash systems. It takes a 2.7V to 4V input — typically a single Li-ion cell or a 3.3V regulated rail — and charges the photoflash capacitor to the high voltage needed for the xenon discharge. The IC draws only 1.3 mA quiescent supply current, which keeps standby drain low in battery-powered flash units between charge cycles.
Package and footprint — 16-VQFN (3x3 mm)
The TPS65561RGTR is supplied in a 16-VQFN (3x3 mm) package. Mounting is surface-mount only. The small 3x3 mm footprint saves board space but demands a well-designed solder paste stencil and reflow profile to avoid voiding under the exposed pad.
