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LX1734 - 1.0MHz Inverting DC/DC Converter

General Description

The LX1734 is an inverting DC/DC current-mode controller.

With a 750mA integrated switch, the LX1734 can generate large output currents in a small footprint.

The LX1734 minimizes external component size and cost by implementing a high switching frequency of 1.0MHz, while generating -5V at 250mA.

Key Features

  • Fixed Frequency 1.0MHz Operation.
  • Very Low Noise: 1mVP-P Output Ripple Possible With Cuk Topology.
  • Stable Operation With Ceramic or Tantalum Capacitors.
  • -5V at 250mA from 5V Input.
  • Uses Small Surface Mount L/C Components.
  • Wide Input Range: 4.2V to 8V.
  • Low VCESAT Switch: 600mV at 600mA.
  • 6-Lead 3x3mm JEDEC MLPM Package.
  • Functionally Compatible with LT1611 or LT1931.

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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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www.DataSheet4U.com TM ® LX1734 1.0MHz Inverting DC/DC Converter KEY FEATURES ƒ Fixed Frequency 1.0MHz Operation ƒ Very Low Noise: 1mVP-P Output Ripple Possible With Cuk Topology ƒ Stable Operation With Ceramic or Tantalum Capacitors ƒ -5V at 250mA from 5V Input ƒ Uses Small Surface Mount L/C Components ƒ Wide Input Range: 4.2V to 8V ƒ Low VCESAT Switch: 600mV at 600mA ƒ 6-Lead 3x3mm JEDEC MLPM Package ƒ Functionally Compatible with LT1611 or LT1931 APPLICATIONS/BENEFITS ƒ ƒ ƒ ƒ ƒ Disk Drive MR Head Bias Digital Camera CCD Bias LCD Bias GaAs FET Bias Local -5V or -12V Supplies DESCRIPTION The LX1734 is an inverting DC/DC current-mode controller. With a 750mA integrated switch, the LX1734 can generate large output currents in a small footprint.