DK503 - Adjustable BUCK switching power supply

DongKe Semicondutor

The DK503 by DongKe Semicondutor is a Adjustable BUCK switching power supply. Below is the official datasheet preview.

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DK503 Adjustable BUCK switching power supply by DongKe Semicondutor - Datasheet Preview — Official preview page of the **DK503** Adjustable BUCK switching power supply datasheet (DongKe Semicondutor).

Datasheet Details

Part number	DK503
Manufacturer	DongKe Semicondutor
File Size	629.86 KB
Description	Adjustable BUCK switching power supply
Datasheet	DK503-DongKeSemicondutor.pdf
Additional preview pages of the DK503 datasheet.

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 |