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LM2647 - Dual Synchronous Buck Regulator Controller

General Description

The LM2647 is an adjustable 200-500kHz dual channel voltage-mode controlled high-speed synchronous buck regulator controller ideally suited for battery powered applications such as laptop and notebook computers.

Key Features

  • 1.
  • 2 Input Voltage Range from 5.5V to 28V.
  • Synchronous Dual-channel Interleaved Switching.
  • Forced-PWM or Pulse-skip Modes.
  • Lossless Bottom-side FET Current Sensing.
  • Adaptive Duty Cycle Clamping.
  • High Current N-channel FET Drivers.
  • Low Shutdown Supply Currents.
  • Reference Voltage Accurate to Within ±1.5%.
  • Output Voltage Adjustable down to 0.6V.
  • Power Good flag and Chip Enable.
  • Under-voltage Lockout.

📥 Download Datasheet

📁 Similar Datasheet

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Other Datasheets by Texas Instruments

Part Number Description
LM2640 Dual Adjustable Step-Down Switching Power Supply Controller
LM26400Y 500-kHz Wide Input Range Buck Regulator
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LM2642 Two-Phase Synchronous Step-Down Switching Controller
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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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LM2647 www.ti.com SNVS210F – JUNE 2003 – REVISED APRIL 2013 LM2647 Dual Synchronous Buck Regulator Controller Check for Samples: LM2647 FEATURES 1 •2 Input Voltage Range from 5.5V to 28V • Synchronous Dual-channel Interleaved Switching • Forced-PWM or Pulse-skip Modes • Lossless Bottom-side FET Current Sensing • Adaptive Duty Cycle Clamping • High Current N-channel FET Drivers • Low Shutdown Supply Currents • Reference Voltage Accurate to Within ±1.5% • Output Voltage Adjustable down to 0.