LA5779

Ordering number : ENA0476A Monolithic Linear IC LA5779 www.DataSheet4U.com Separately-excited Step-down Switching Regulator (Variable Type) 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 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 Junction temperature Topr Tstg Tj max Infinitely large heat sink. Independent IC. Conditions Ratings 30 3 -1 7.5 1.75 -30 to +125 -40 to +150 150 Unit V A V W W °C °C °C Maximum Output current SW pin application reverse voltage Allowable power dissipation Recommended Operating Conditions at Ta = 25°C Parameter Input voltage range Symbol VIN Conditions Ratings 4.5 to 28 Unit V Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic sig...