| 产品特性：升压恒流IC | 类型：DC/DC电源模块 | 品牌：世微 |
| 型号：AP9232 | 处理器速度：高效率：可高达 95% | 电源电流：3A |
| 电源电压：宽输入电压范围：2.5--3.6V | 功率：3W | 用途：l White LED Torch (Flashlight) l White LED Camer |
General Description锛� Features锛�
Applications锛� Typical Application 锛�
Rs Resistor Value Selection锛�
CS05FTGR127N(0805锛�1锛咃紝TCR300,127 m惟) CS05FTGR270(0805锛�1锛咃紝TCR300,270 m惟
TYP.锛坢惟锛� ILED (mA) 127 750 270 351.8
The AP9232 is a set-up DC-DC converter that delivers a regulated output current. The device switches at a 1MHz constant frequency,allowing for the use of small value external inductor and ceramic capacitors. The AP9232 is targeted to be used for driving loads up to 1A from a two-cell alkaline battery. The LED current can be programmed by the external current sense resistor, Rs, connected between the feedback pin (FB) and ground. A low 95mV feedback voltage reduces the power loss in the Rs for better efficiency. During the shutdown mode, the feedback resistor Rs and the load are completely disconnected and the current consumption is reduced to less than 1uA.
l LED Power Efficiency: up to 90%
l Current Accuracy: 卤10%
l Low Start-Up Voltage: 0.9V(ILED锛�270mA)
l Low Hold Voltage:0.75V(ILED锛�200mA)
l 1MHz Switching Frequency
l Uses small, Low Profile External Components
l Low RDS(ON) : 100m惟 (TYP.)
l Open LED Protection
l Over Temperature Protection
l Low Profile SOT-23-6 Package
l Pb-Free Package
l White LED Torch (Flashlight)
l White LED Camera Flash
l DSC(Digital Still Camera)Flash
l Cellular Camera Phone Flash
l PDA Camera Flash
l Camcorder Torch(Flashlight) Lamp
