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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 Details

Part number NCP5030
Manufacturer onsemi
File Size 186.77 KB
Description Buck Boost Converter
Datasheet download datasheet NCP5030 Datasheet

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.

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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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