Ordering number : ENA0476A
LA5779
Monolithic Linear IC
Separately-excited Step-down Switching
Regulator (Variable Type)
http://onsemi.
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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
...