Generally, when customers look for switching power supply chips, we will ask customers how much input voltage do they need? What is the output voltage and current power? Do you want MOS or BJT? Where is the application scenario? ……So today, I will introduce a chip with 15W power supply scheme that customers often ask, U6203D and U6773S two models.
What are the similarities and differences between 15W switching power supply chips U6203D and U6773S? First of all, let’s take a look at the common points of these two power chips. The output power is 15W, and the three-winding transformer with built-in 4AMOS is also used. The standby power of these two switching power supply chips is <70mW, CC and CV accuracy is <+-4%, and they have excellent dynamic response capabilities. At the same time, they use integrated line loss compensation technology, integrated line voltage, inductance constant current compensation technology, Stable working performance, no abnormal noise. Finally, the application fields of 15W switching power supply chips U6203D and U6773S can be applied to chargers, adapters, control board systems, LED lighting drive power systems, etc.
What are the differences between 15W switching power supply chip U6203D and U6773S? The first is that the U6773S switching power supply chip is the primary side PSR chip, and the U6203D switching power supply chip is the secondary side SSR chip. Second, the packaging of these two switching power supplies is different. U6773S uses SOP-8 packaging, and U6203D uses DIP-7 packaging. Third, the specifications of these two switching power supply chips are different. U6773S has 5V3A and 12V1.25A specifications, and U6203D has 5V1.2A2A2.5A and 12V1A specifications.
The above are the common points and differences between 15W switching power supply chips U6203D and U6773S. When we provide customers with power solutions, we provide the best quality power solutions according to the performance requirements of the customer’s application products, from power, voltage and current, and packaging methods. Serve.