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EL7556B - Integrated Adjustable 6 Amp Synchronous Switcher

General Description

VDD Supply Current VDD Standby Current VIN No Load Current Output Initial Accuracy Output Initial Accuracy Output line Regulation Output Load Regulation Short Circuit Load Resistance Current Limit Output Tempco Over Temperature Threshold Over Temperature Hysteresis Power Good Threshold Relative to

Key Features

  • EL7556/EL7556A Pin-compatible.
  • Improved temperature and voltage ranges.
  • 6A continuous load current.
  • Precision internal 1% reference.
  • 1.0V to 3.8V output voltage.
  • Internal power MOSFETs.
  • >90% efficiency.
  • Synchronous switching.
  • Adjustable slope compensation.
  • Over-temperature indicator.
  • Pulse-by-pulse current limiting.
  • Operates up to 1MHz.
  • 1.5% typical output accuracy.
  • Adju.

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Full PDF Text Transcription (Reference)

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® F T RM A NF O I D ATE Sheet 56D Data PD EL75 OR U I EE ON S EL7556B October 5, 2001 FN7292 Integrated Adjustable 6 Amp Synchronous Switcher The EL7556B is an adjustable synchronous DC:DC switching regulator optimized for a 5V input and 1.0V-3.8V output. By combining integrated NMOS power FETs with a fused-lead package, the EL7556B can supply up to 6A continuous output current without the use of external power devices or discrete heat sinks, thereby minimizing design effort and overall system cost. On-chip resistorless current sensing is used to achieve stable, highly efficient, current-mode control. The EL7556B also incorporates the VCC2DET function to directly interface with the Intel P54 and P55 microprocessors.