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LM3477 - High Efficiency High-Side N-Channel Controller

General Description

The LM3477/A is a high-side N-channel MOSFET switching regulator controller.

It can be used in topologies requiring a high side MOSFET such as buck, inverting (buck-boost) and zeta regulators.

The LM3477/A's internal push pull driver allows compatibility with a wide range of MOSFETs.

Key Features

  • 1.
  • 2 500kHz Switching Frequency.
  • Adjustable Current Limit.
  • 1.5% Reference.
  • Thermal Shutdown.
  • Frequency Compensation Optimized with a Single Capacitor and Resistor.
  • Internal Softstart.
  • Current Mode Operation.
  • Undervoltage Lockout with Hysteresis.
  • 8-lead (VSSOP-8) Package.

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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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LM3477 www.ti.com SNVS141K – OCTOBER 2000 – REVISED MARCH 2013 LM3477 High Efficiency High-Side N-Channel Controller for Switching Regulator Check for Samples: LM3477 FEATURES 1 •2 500kHz Switching Frequency • Adjustable Current Limit • 1.5% Reference • Thermal Shutdown • Frequency Compensation Optimized with a Single Capacitor and Resistor • Internal Softstart • Current Mode Operation • Undervoltage Lockout with Hysteresis • 8-lead (VSSOP-8) Package APPLICATIONS • Local Voltage Regulation • Distributed Power • Notebook and Palmtop Computers • Internet Appliances • Printers and Office Automation • Battery operated Devices • Cable Modems • Battery Chargers DESCRIPTION The LM3477/A is a high-side N-channel MOSFET switching regulator controller.