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XR4981 - SYNCHRONOUS BOOST CONTROLLER

General Description

XR4981 is a high efficiency synchronous boost controller that converts from 3V ~36V input range and up to 36V output voltage with an outside N-channel MOSFET for the synchronous switch.

Key Features

  • 3V~36V input voltage range.
  • Adjustable output voltage from 5V to 36V.
  • 1.21V VFB reference voltage.
  • Adjustable current limit.
  • Adjustable soft-start.
  • Adjustable compensation net.
  • Input under voltage lockout.
  • 400Khz fixed Switching Frequency.
  • Thermal Shutdown.
  • QFN3x3-16 Package.
  • Rohs Compliant and Halogen Free XySemi Inc Figure 1. Typical.

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Datasheet Details

Part number XR4981
Manufacturer XySemi
File Size 630.37 KB
Description SYNCHRONOUS BOOST CONTROLLER
Datasheet download datasheet XR4981 Datasheet

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Full PDF Text Transcription (Reference)

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XR4981 ___________________________________________________________________________________________________________________ __ SYNCHRONOUS BOOST CONTROLLER 3V~36V Input 5V~36V Output， Extended NMOS GENERAL DESCRIPTION XR4981 is a high efficiency synchronous boost controller that converts from 3V ~36V input range and up to 36V output voltage with an outside N-channel MOSFET for the synchronous switch. The XR4981 includes adjustable current limit, adjustable soft-start, adjustable compensation net and thermal shutdown preventing damage in the event of an output overload.