This is one of the semiconductor types. This part name is XL6009.
This product has 400KHz 60V 4A Switching Current Boost / Buck-Boost / Inverting DC/DC Converter functions.
Manufacturers of product is XLSEMI.
Image and pinout :
XL6009 PDF Datasheet
Some of the text files within the PDF file
XL6009 400KHz 60V 4A Switching Current Boost / Buck-Boost / Inverting DC/DC Converter Features n n n n n n n n n n n General
The XL6009 regulator is a wide input range, current mode, DC/DC converter which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. The XL6009 built in N-channel power MOSFET and fixed frequency oscillator, current-mode architecture results in stable operation over a wide range of supply and output voltages. The XL6009 regulator is special design for portable electronic equipment applications. n n n n n Wide 5V to 32V Input Voltage Range Positive or Negative Output Voltage Programming with a Single Feedback Pin Current Mode Control Provides Excellent Transient Response 1.25V reference adjustable version Fixed 400KHz Switching Frequency Maximum 4A Switching Current SW PIN Built in Over Voltage Protection Excellent line and load regulation EN PIN TTL shu [ … ]
Please refer to the file for details.