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AIC1647CV LED Driver PMIC PWM，boost backlight 1.2MHz 2.7V ~ 5.5V SOT-153/SOT23-5 1647 White LED Step-Up Converter in SOT23
| 恒流 Constant Current | |
| 恒压 Constant Voltage | |
| 拓扑 Topology | PWM，升压（升压） PWM, Step-Up (Boost) |
| 输出数 Number of Outputs | 3 |
| 内部驱动器 Internal Driver | |
| 初级类型 Type - Primary | 背光 Backlight |
| 次级类型 Type - Secondary | 白色 LED White LED |
| 频率 Frequency | 1.2MHz |
| 电源电压 Voltage - Supply | 2.7V ~ 5.5V |
| 输出电压 Voltage - Output | |
| Description & Applications | FEATURES • White LED Step-Up Converter in SOT23 •1.2MHz Fixed Frequency Current-Mode PWM Operation. • Efficiency Up to 84% at VIN=4.2V, 3LEDs, ILED=20mA • Drives Up to 6LEDs in series • Low Supply Current: 70µA • Matches LED Current • Require Tiny Inductors and Capacitors • Tiny SOT23-5 Package Applications • Cellular Phones • PDAs • Digital Still Cameras Handheld Devices • White LED Display Backlighting |
| 描述与应用 | 特点 •白光LED升压型转换器，SOT23封装 •1.2MHz固定频率电流模式PWM操作。 •效率高达84％VIN= 4.2V，三灯，电流为20mA •驱动多达串联6LEDs •低电源电流：70μA •LED电流匹配 •需要微小的电感器和电容器 •微型SOT23-5封装 应用 •蜂窝电话 •掌上电脑 •数码相机手持设备 •白光LED背光显示 |
