Ordering number : ENA0795
Monolithic Linear IC
LA5779N
com
Separately-excited Step-down
Switching
Regulator (Variable Type)
Overview
The LA5779N 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
Parameter Maximum Input voltage
Absolute Maximum Ratings at Ta = 25°C
Symbol VIN max IO max VSW Pd max1 Pd max2 Operating temperature Storage temperature Topr Tstg Infinitely large heat sink.
No heat sink.
Conditions Ratings 30 3 -1 7.
5 1.
75 -30 to +125 -40...