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LA5744 - Separately-Excited Step-Down Switching Regulator

General Description

1.

Overcurrent protection function The overcurrent protection function detects, on a cycle-by-cycle basis, the output transistor current and turns off that output transistor current if it exceeds 3.1A.

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Datasheet Details

Part number LA5744
Manufacturer onsemi
File Size 65.53 KB
Description Separately-Excited Step-Down Switching Regulator
Datasheet download datasheet LA5744 Datasheet

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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Ordering number : ENA0717C LA5744 Monolithic Linear IC Separately-Excited Step-Down Switching Regulator (Variable Type) http://onsemi.com Overview The LA5744 is a separately-excited step-down switching regulator (variable type). Functions • High efficiency. • Time-base generator (300kHz) incorporated. • Current limiter incorporated. • Thermal shutdown circuit incorporated. • Soft start circuit incorporated. Specifications Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Input voltage Maximum output current SW pin application reverse voltage Allowable power dissipation VIN IO max VSW Pd max1 No heat sink Pd max2 Infinite heat sink Operating temperature Topr Storage temperature Tstg Junction temperature Tj max * Specified circuit board : 76.1×114.3×1.