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LA5779 - Separately-excited Step-down Switching Regulator

Description

This IC controls the switching output so that the VOS pin voltage becomes 1.23V (typ).

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

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Datasheet Details

Part number LA5779
Manufacturer onsemi
File Size 52.50 KB
Description Separately-excited Step-down Switching Regulator
Datasheet download datasheet LA5779 Datasheet

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Full PDF Text Transcription

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Ordering number : ENA0476A LA5779 Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type) http://onsemi.com Overview The LA5779 is a Separately-excited step-down switching regulator (variable type). Functions • High efficiency. • Six external parts. • Time-base generator (160kHz) incorporated. • Current limiter incorporated. • Thermal shutdown circuit incorporated. • ON/OFF function. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum Input voltage Maximum Output current SW pin application reverse voltage Allowable power dissipation Operating temperature Storage temperature Junction temperature Symbol VIN max IO max VSW Pd max1 Pd max2 Topr Tstg Tj max Conditions Infinitely large heat sink. Independent IC. Ratings 30 3 -1 7.5 1.
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