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MP2109/MP2109DQ特性:•高达95 %的效率•1.2MHz的恒定开关频率•800毫安负荷电流•2.5V至6V的输入电压范围•输出电压低至0.6V •100 %效率应用 dzsc/17/1747/17174748.jpg MP2109图片 该MP2109包含两个独立的1.2MHz的恒定频率,电流模式PWM降压converters.Each转换器集 成了一个主开关和同步整流的高效率没有一个外部肖特基二极管。MP2109是便携供电设备的 运行理想的的一颗IC锂离子( Li + )电池。每个转换器可提供800mA的负载电流从2.5V至6V 的输入电压。输出电压可调节为低至0.6V 。该MP2109还可以运行在100 %占空比的低压差效 率应用。 MP2109可应用在蜂窝电话和智能手机上,MP2109也可应用在微处理器和DSP核心掌上电脑用 品上还有MP3播放器数码摄像机和便携式仪器• 同类产品:EUP3409 雙路1.5MHz、800mA 同步降壓型DC-DC變換器 概述 EUP3409是一款雙路獨立的1.5MHZ恒定頻率、電流模脈寬調製(PWM)架構的降壓型變換器。每一路變換器都集成了一個主開關管和同步整流管以提高效率,無需外部肖特基二極體。EUP3409是單節鋰電...
LCD Interface Controller II, LVIC-II 控制器HD66841FS DescriptionThe HD66841 LCD video interface controller (LVIC-II) converts standard RGB video signals for CRTdisplay into LCD data. It enable a CRT display system to be replaced by an LCD system without anychanges, and it also enables software originally intended for CRT display to control an LCD.Since the LVIC-II can control TFT-type LCDs in addition to current TN-type or STN-type LCDs, it cansupport 8-color display as well as monochrome, 8-level gray-scale display. It can program screen size andcan control a large-panel LCD of 720 ´ 512 dots.The LVIC-II thanks to a gray-scale palette, any 8-levels can be selected from 13 gray-scale levels,depending on the LCD panel used.