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LA5744 データシート(PDF) 1 Page - ON Semiconductor |
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LA5744 データシート(HTML) 1 Page - ON Semiconductor |
1 / 5 page 52307 MS PC 20070522-S00004 / 42507 MS PC / 31407 MS PC / 30707 MS PC No.A0717-1/5 http://onsemi.com Semiconductor Components Industries, LLC, 2013 August, 2013 LA5744 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 Ratings Unit Input voltage VIN 30 V Maximum output current IO max 3A SW pin application reverse voltage VSW -1 V Pd max1 No heat sink 1.75 W Allowable power dissipation Pd max2 Infinite heat sink 7.5 W Operating temperature Topr -30 to +125 °C Storage temperature Tstg -40 to +150 °C Junction temperature Tj max 150 °C * Specified circuit board : 76.1 ×114.3×1.6mm3 : 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 : ENA0717C 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. |
同様の部品番号 - LA5744 |
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同様の説明 - LA5744 |
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