The RT4703 is a triple channels DC-DC converter which is designed to provide the power of AMOLED. It integrates step up and inverting DC-DC converters to provide the positive and negative output voltage required by AMOLED.
For the portable application, board space and efficiency are always major concerns. The high switching frequency of the RT4703 allows the use of low inductance inductor to save the board space. VO1, VO2 and VO3 output voltage can be programmed by external MCU through CTRL pin. The positive output voltage range of VO1 is 4.6V to 5.0V and VO3 is 6.8V to 7.8V. The negative VO2 voltage range is -1.4V to -5.4V. The RT4703 is available in a WL-CSP-20B 1.76x2.06 (BSC) package to achieve optimized solution for PCB space.
Applications
- AMOLED Panel
- Mobile Phone
- Portable Instrument