DK503 - Adjustable BUCK switching power supply

DongKe Semicondutor

DK503 Datasheet Preview — Preview of DK503 PDF

Datasheet Details

Part number	DK503
Manufacturer	DongKe Semicondutor
File Size	629.86 KB
Description	Adjustable BUCK switching power supply
Datasheet	DK503-DongKeSemicondutor.pdf

DK503 Product details

Description

Chip power pin Chip power pin Feedback foot Power supply pin Input Pin, external rectified DC input voltage http://www.dkpower.cn 2 EXTREME WORKING RANGE Project Symbols Min Supply voltage VDD US -0.3 PIN voltage UPV -0.3 Breakdown Voltage UPP -0.3 Peak current IPEAK Total dissipation power PTOT Operating temperature -25 TR range Storage temperature -55 TSTG range Welding temperature TW DK503 Typ 800 280/5S Max 7 VDD+0.3 700 700 125 150 Unit V V V mA mW ℃ ℃ ℃ ELE

Features

Full voltage input 85V-265V.
Built-in 700V high voltage power tube.
High voltage constant current starting circuit is integrated inside, no external starting resistance is needed.
Patented self-powered technology, no external auxiliary winding power supply.
Built-in peak current adjustment function, according to the load real-time adjustment peak current, stable working frequency.
The output voltage can be adjusted by FB resistance.
Over-temperature, over-vol.

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Published: May 26, 2024 |