File Download: AN002-Dual LDO Camera.pdf (204KB)

Programmable Dual LDO Output Voltage and WLED Current with I²C Interface

The RT9367A is an integrated solution for panel backlighting and phone camera application. The part contains a charge pump white LED driver and dual low dropout linear regulators. The RT9367A application mechanism and I2C compatible interface are introduced in this application note.

File Download: AN001-Power Switches.pdf (55KB)

The Reduction of Input Voltage Spike on Power Switches

The power switch is a low voltage, single N-Channel MOSFET high-side power switch, optimized for self-powered and bus- powered Universal Serial Bus (USB) applications. In worse operating condition, an input voltage spike may over the chip's maximum input voltage specification to damage the chip. This application note introduces solutions for reducing the input voltage spike on power switches.