The TPS61050 LED-driver IC is based on a high-frequency synchronous-boost topology with a constant-current sink to drive single, high-brightness white-light emitters. The tiny 2x1.5x0.625mm device uses an inductive fixed-frequency pulse-width-modulation-control scheme utilsing small external components, minimising input-ripple current for applications, such as a white LED flash for camera phones, smart phones and PDAs, or other general lighting systems. The chip uses a 2MHz switching frequency that allows the use of small and low-profile 2.2µH inductors. It operates as a regulated current source and as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system - such as audio amplifiers - or any other component requiring a supply voltage above the battery voltage.