Camera flash boost with digital dimming control
The TPS61301YFFT is a dedicated DC-DC boost regulator from Texas Instruments, designed specifically for camera flash applications. It integrates three outputs with internal switches, delivering up to 400 mA per channel or 800 mA in flash mode from a 5.7 V output rail. Dimming is handled over an I²C interface, which means the host processor can set flash intensity and timing digitally without an external PWM pin or analog control voltage — a cleaner signal chain for compact camera modules.
Switching frequency and package — board integration
The 1.92 MHz switching frequency reduces inductor and capacitor size. The 20-DSBGA package requires a controlled solder-paste stencil and X-ray inspection after reflow. The 5.7 V output is optimised for series-connected flash LEDs that need a boost above the battery voltage.
It suits outdoor security cameras, dashcams, and handheld devices that see cold starts and hot interiors, but it is not AEC-Q100 qualified for under-hood automotive use.