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NCP5030 - Buck Boost Converter

Description

Feedback: Reference voltage is 200 mV.

LED current should be connected at this point.

for best output accuracy.

Features

  • Efficiency: 87% at 500 mA and 3.3 V VIN.
  • Internal Synchronous Rectifier, No Schottky Diodes.
  • Adjustable Switching Limit Current to Optimize inductor size.
  • 0.3 mA Shut.
  • down Control with “True.
  • Cut off”.
  • Input Voltage Range from 2.7 V to 5.5 V.
  • 200 mV Feedback Voltage.
  • Output Over.
  • voltage and Thermal Shut Down Protection Typical.

📥 Download Datasheet

Datasheet preview – NCP5030

Datasheet Details

Part number NCP5030
Manufacturer onsemi
File Size 186.77 KB
Description Buck Boost Converter
Datasheet download datasheet NCP5030 Datasheet
Additional preview pages of the NCP5030 datasheet.

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Full PDF Text Transcription

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NCP5030 Buck-Boost Converter to Drive a Single LED from 1 Li-Ion or 3 Alkaline Batteries The NCP5030 is a fixed frequency PWM buck−boost converter optimized for constant current applications such as driving high−powered white LED. The buck−boost is implemented in an H−bridge topology and has an adaptive architecture where it operates in one of three modes: boost, buck−boost, or buck depending on the input and output voltage condition. This device has been designed with high−efficiency for use in portable applications and is capable of driving in DC up to 900 mA into a high power LED for flashlight / torch applications. To protect the device cycle−by−cycle current limiting and a thermal shutdown circuit have been incorporated as well as output over−voltage protection.
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