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RT9271PE Constant Current LED Driver PWM，boost 1.1MHz 2.4V ~ 6V SOT-163/SOT23-6 CA
| 恒流 Constant Current | 是 YES |
| 恒压 Constant Voltage | |
| 拓扑 Topology | PWM，升压（升压） PWM, Step-Up (Boost) |
| 输出数 Number of Outputs | |
| 内部驱动器 Internal Driver | 是 YES |
| 初级类型 Type - Primary | |
| 次级类型 Type - Secondary | 白色 LED White LED |
| 频率 Frequency | 1.1MHz |
| 电源电压 Voltage - Supply | 2.4V ~ 6V |
| 输出电压 Voltage - Output | |
| Description & Applications | FEATURES •White LED Step-Up Converter in Tiny Package •Inherently Matched LED Current •Up to 80mA Output Current @ VOUT < 12V •High Efficiency : 85% Typical •Drives Up to Three LEDs from 2.8V Supply •20V Internal Switch •Fast 1.1 MHz Switching Frequency •Uses Tiny 1 mm Height Inductors •Requires Only 1uF Output Capacitor •Low Profile SOT-23-6 Package •Optional 15V Over Voltage Protection •RoHS Compliant and 100% Lead (Pb)-Free Applications •Mobile Phone •Digital Still Camera •PDAs, Handheld Computers •MP3 Players •GPS Receivers |
| 描述与应用 | 特点 •微型封装的白光LED升压转换器 •固有匹配的LED电流 •高达80mA的输出电流@ VOUT<12V •高效率：85％（典型值） •驱动多达三个LED从2.8V电源 •20V内部开关 •快速1.1 MHz的开关频率 •采用纤巧的1毫米高的电感器 •只需要1uF的输出电容器 •薄型SOT-23-6封装 •可选15V过电压保护 •符合RoHS标准，100％无铅（pb）产品 应用 •手机 •数码相机 掌上电脑，掌上电脑 •MP3播放器 •GPS接收机 |
