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LA5779MP Arkusz danych(PDF) 1 Page - ON Semiconductor |
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LA5779MP Arkusz danych(HTML) 1 Page - ON Semiconductor |
1 / 4 page N1306 MS PC 20060411-S00008 No.A0498-1/4 http://onsemi.com Semiconductor Components Industries, LLC, 2013 August, 2013 LA5779MP Overview The LA5779MP 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 Symbol Conditions Ratings Unit Maximum Input voltage VIN max 30 V Maximum Output current IO max 3 A SW pin application reverse voltage VSW -1 V Allowable power dissipation Pd max Mounted on a substrate.* 3.9 W Operating temperature Topr -30 to +125 °C Storage temperature Tstg -40 to +150 °C * Specified substrate : 76.1×114.3×1.6mm 3 : Copper foil ratio 60 % FR4 Recommended Operating Conditions at Ta = 25 °C Parameter Symbol Conditions Ratings Unit Input voltage range VIN 4.5 to 28 V Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type) Ordering number : ENA0498 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. |
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