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请推荐一颗单节电池同步升压恒流驱动IC

Other Parts Discussed in Thread: TPS92640

要求:

1、输入最低电压最好可以到2V

2、升压驱动要求同步整流

3、要是能够同时满足升降压就更好了(但是这时候的输入电压最高会到25V)

4、要求必须外置MOSFET,输出会达到15W。电流采样外置电阻

5、输出空载电压会达到18V的样子

6、能够PWM或者电平调整亮度。