This is one of the semiconductor types. This part name is SDC2921.
This product has Voltage Mode PWM Controller functions.
Manufacturers of product is SDC.
Image and pinout :
SDC2921 PDF Datasheet
Some of the text files within the PDF file
Datasheet Voltage Mode PWM Controller SDC2921 General
Features The SDC2921 is a Pulse–Width Modulation (PWM) control circuit with complete protection circuits for the SMPS T(Switching Mode Power Supply). It contains various Nfunctions, can minimize external components of switching OCUMEpower supply systems in personal computer. Complete PWM control and protection circuits Over voltage protection for 3.3V/ 5V/ 12V/ PT Under voltage protection for 3.3V/ 5V/ 12V 280ms PG time delay Open drain power good output 280ms time delay for UVP Remote ON/OFF function Built-in soft-start function Package: DIP-16 Applications PC power supply FIDENTIAL DDIP-16 CON Figure 1. Package Type SDC December, 2013 Rev. 1.2 ©2013 Shaoxing Devechip Microelectronics Co., Ltd. 1/13 www.sdc-semi.com Voltage Mode PWM Controller Datasheet SDC2921 Pin Configuration Package: DIP-16 T1 V33 VIN+ 16 N2 V5 VIN- 15 E3 V12 OPOUT 14 M4 PT VCC 13 U5 G [ … ]
Please refer to the file for details.