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LA5756 - Switching Regulator

Description

1.

Calculation equation to set the output voltage This IC controls the switching output so that the VOS pin voltage becomes 1.26V (typ).

The VOS pin has the inrush current of 1μA (typ).

Features

  • Output smoothing condenser can use a Low ESR condenser for the reliability improvement.
  • High efficiency.
  • Four external parts.
  • Time-base generator (80kHz) incorporated.
  • Current limiter incorporated.
  • Thermal shutdown circuit incorporated.
  • Soft start circuit incorporated Specifications Maximum Ratings at Ta = 25°C Parameter Input voltage Output current SW pin.

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Full PDF Text Transcription

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Ordering number : ENA1438B LA5756 Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type) Overview The LA5756 is a separately-excited step-down switching regulator (variable type). Features • Output smoothing condenser can use a Low ESR condenser for the reliability improvement • High efficiency • Four external parts • Time-base generator (80kHz) incorporated • Current limiter incorporated • Thermal shutdown circuit incorporated • Soft start circuit incorporated Specifications Maximum Ratings at Ta = 25°C Parameter Input voltage Output current SW pin application reverse Allowable power dissipation Operating temperature Storage temperature Symbol VIN max IO max VSW Pd max1 Pd max2 Topr Tstg Conditions Infinite heat sink. No heat sink. Ratings 34 3.
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