Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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One Package DC/DC Converter for Mobile Phone's Sub-OLED

모바일 폰 외부 OLED용 DC/DC 컨버터 패키지 개발

  • Oh Se-Wook (LG Production Research Engineering Center) ;
  • Kim Seong-Il (LG Production Research Engineering Center)
  • Published : 2004.07.01
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Abstract

This paper presents a package IC containing some components of DC/DC converter block for mobile phone's sub OLED(Organic Light Emitting Display). Package IC contains a load switch, a control IC, a diode, a switch for on/off operation, and a switch for changing output voltage. It operates with switching frequency of 100kHz, within the range of input voltage, $3.2V\~5.5V$. Duty ratio can be changed up to $93\%$, and maximum power efficiency is $85\%$. This package IC is loaded onto three model of 1.2W mobile phone's sub-OLED.

Keywords