The NCP5010 is a fixed frequency PWM boost converter with integrated rectification optimized for constant current applications such as driving white LEDs. This device features small size, minimal external components and high-efficiency for use in portable applications and is capable of providing up to 500 mW output power to 2-5 series connected white LEDs. A single resistor sets the LED current and the CTRL pin can be pulse width modulated (PWM) to reduce the LED Current. The device can also be configured as a fixed output voltage boost converter for applications such as OLED bias where it is capable of generating voltage up to 20 V. The device includes True-Cutoff circuitry to disconnect the load from the battery when the device is put into standby mode. To protect the device, an output overvoltage protection, and short circuit protection have been incorporated. The NCP5010 is housed in a low profile, space efficient 1.7 x 1.7 mm Flip-Chip package. The device has been optimized for use with small inductors and ceramic capacitors.