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LX1911 - 1.5A - 1.1MHZ PWM Step-Down Regulator

Description

KEY

Features

  • Internal Reference 800mv ±2% Accuracy (Line and Temp. ).
  • 4.0V to 6.0V Input Range.
  • Internal Soft Start.
  • Adj. Output From 0.8V to VIN.
  • Output Current (I >1.5A).
  • Quiescent Current < 550μA, typical @ 23°C.
  • 1.1MHz PWM Frequency.
  • Micro Lead-frame, Thin MO229, 6-Pin Package.

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www.DataSheet4U.com TM ® LX1911 1.5A, 1.1MHZ PWM Step-Down Regulator P RODUCTION D ATA S HEET DESCRIPTION KEY FEATURES ƒ Internal Reference 800mv ±2% Accuracy (Line and Temp.) ƒ 4.0V to 6.0V Input Range ƒ Internal Soft Start ƒ Adj. Output From 0.8V to VIN ƒ Output Current (I >1.5A) ƒ Quiescent Current < 550μA, typical @ 23°C ƒ 1.1MHz PWM Frequency ƒ Micro Lead-frame, Thin MO229, 6-Pin Package APPLICATIONS/BENEFITS ƒ Portable Microprocessor Core Voltage Supplies ƒ 5V to 3V The LX1911 operates as a Current Mode PWM Buck regulator that switches to PFM mode with light loads. The entire regulator function is implemented with minimal external components. The LX1911 responds quickly to dynamic load changes using a high bandwidth error amplifier and internal compensation.
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