General Description

The RT4841 is Synchronous Boost Converter with output

isolation MOS for active matrix thin film transistor (TFT)

liquid crystal displays (LCDs).

The Device incorporates current mode, fixed-frequency,

pulse width modulation (PWM) circuitry and fully integrated

synchronous boost converter with a 80mΩ power switch

and a 80mΩ rectifier switch to achieve high efficiency,

small size and fast transient response in TFT-LCD

applications. Moreover, Device contains one ISO MOSFET

controller for power on sequence of step-up converter. The

RT4841 has a wide input voltage range from 8.6V to 15.9V

and device has 5A (min.) switching current capability. The

RT4841 is available in a WQFN-20L 4x4 package.