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LA5759 Scheda tecnica(PDF) 1 Page - ON Semiconductor |
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LA5759 Scheda tecnica(HTML) 1 Page - ON Semiconductor |
1 / 4 page 51210 SY 20100308-S00001 No.A1683-1/4 http://onsemi.com Semiconductor Components Industries, LLC, 2013 August, 2013 LA5759 Overview The LA5759 is a separately-excited step-down switching regulator (variable type). Features • Output smoothing condenser can use a Low ESR condenser for the reliability improvement • High efficiency • Four external parts • Time-base generator (80kHz) 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 max 34 V SW pin application reverse VSW -1 V Pd max1 Infinite heat sink. 7.5 W Allowable power dissipation Pd max2 No heat sink. 1.75 W Operating temperature Topr -30 to +125 °C Storage temperature Tstg -40 to +150 °C Recommended Operating Conditions at Ta = 25 °C Parameter Symbol Conditions Ratings Unit Input voltage range VIN 4.5 to 32 V Ordering number : ENA1683 Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type) 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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