This part is a kind of semiconductor called L2001.

Function of this product has Current Mode PWM Controller.

Manufacturers : LIZE

Image and pinout :

Some of the text within the PDF file :

Shenzhen LIZE Electronic Technology Co., Ltd SPECIFICATION L2001 Current Mode PWM Controller VERSION 1.0 reserves the right to change this documentation without prior notice Shenzhen LIZE Electronic Technology Co., Ltd Ｌ２００１ Current Mode PWM Controller Frequency Shuffling L2001 是一款高效率升压 DC/DC 非同步转换控制芯片。待机电流<3uA。 主要特性： 1、高效率：90% 2、650KHz 恒定开关频率。 3、输出电压精度+3% 4、待机电流<3μA。 5、内置过温保护电路。 典型应用电路 A：Vout=5V, Iout=1A。 reserves the right to change this documentation without prior notice Page 2 of 5 Shenzhen LIZE Electronic Technology Co., Ltd Ｌ２００１ Current Mode PWM Controller Frequency Shuffling SOT23-5 输出引脚定义 引脚 序号 1 [ ... ]

L2001 PDF Datasheet Download