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DK503 - Adjustable BUCK switching power supply

Datasheet Summary

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

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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Datasheet preview – DK503

Datasheet Details

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

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Full PDF Text Transcription

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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.
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