Datasheet4U Logo Datasheet4U.com

DK503 - Adjustable BUCK switching power supply

General 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 dissipati

Key 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
DK51 NPN Silicon High Power Switching Transistor Qunli Electric
DK52 NPN Transistors JDsemi
DK52D Bipolar Junction Transistor Jingdao
DK53 NPN Transistor PENGAI SEMICONDUCTOR
DK53TD Bipolar Junction Transistor Jingdao

Other Datasheets by Dongke Semiconductor

Part Number Description
DK5030 Non-isolated inductor-free AC linear regulator
DK501 Adjustable BUCK switching power supply
DK5320 step-down AC-DC constant voltage conversion chip
DK5710 High performance non-isolated AC to DC conversion chip
DK5V100R05VL High-performance synchronous rectifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DK503 Small household appliances adjustable BUCK switching power supply PRODUCT OVERVIEW DK503 is a wide output voltage non-isolated low-power AC/DC converter chip. The chip is designed in high integrated CMOS circuit, and has the protection functions of output short circuit, over temperature, over voltage and so on. Built-in high-voltage start-up and self-power module, can real-time monitoring and response to load conditions.