LA5756

Ordering number : ENA1438B LA5756 Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type) http://onsemi.com Overview The LA5756 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 Input voltage Output current SW pin application reverse Allowable power dissipation Operating temperature Storage temperature Symbol VIN max IO max VSW Pd max1 Pd max2 Topr Tstg Conditions Infinite heat sink. No heat sink. Ratings 34 3.5 -1 7.5 1.75 -30 to +125 -40 to +150 Unit V A V W W °C °C 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. Recommended Operating Conditions at Ta = 25°C Parameter Input voltage range Symbol VIN Conditions Ratings 4.5 to 32 Unit V Semiconductor Components Industries, LLC, 2013 August, 2013 62409 SY 20090611-S00001 / 41509 MS / 40809 MS 20090326-S00003 No.A1438-1/4 LA5756 Electrical Characteristics at Ta = 25°C, VO = 3.3V Parameter Sym...