RT9287A
Description
The RT9287A is an integrated solution for WLED and camera power. It contains a boost converter with internal schottky diode to provide WLED power and Dual LDO for the power of camera image sensor. In the section of boost converter, RT9287A's optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. Internal soft start function can reduce the inrush current. The initial current of WLED is set by the external resistor RSET. The feedback voltage is 250m V. z
Features z
Boost Converter `VIN Operating Range : 2.7V to 5.5V `Up to 85% Efficiency `22V Internal Power N-MOSFET `1MHz Switching Frequency `Built-in Diode `Digital Dimming with Zero-Inrush `Input UVLO Protection `Output Over Voltage Protection `Internal Soft Start and pensation Dual LDO `Wide Operating Voltage Ranges : 2.7V to 5.5V `Low-Noise for RF Application `No Noise Bypass Capacitor Required `Fast Response in Line/Load Transient `TTL-Logic-Contro...
