LV5771QA

Ordering number : ENA2178 LV5771QA Bi-CMOS IC Step-down Voltage Switching Regulator http://onsemi.com Overview LV5771QA is a step-down voltage switching regulator. Features and Functions Wide Input dynamic range: 8V to 42V Current mode type Built-in pulse-by-pulse OCP cicuit: detects over current by using ON resistance of an external of an external MOS external resistance for over current detection. Over current protection: HICCUP MODE Built-in output voltage correction circuit Droops when frequency FOLD BACK is negative Teermal shutdown Fixed frewuency: 1MHz Load-independent soft start circuit Over voltage protection Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Supply voltage VIN, SW HDRV, CBOOT Symbol VIN max Conditions Ratings Unit 45 V 45 V 52 V LDRV 6V Allowable pin voltage Between CBOOT and SW, Between CBOOT and HDRV EN, ILIM Between VIN and ILIM VDD SS, COMP, FB, SDIN SNS_OCP, SNS_COM, SNS_CS Allowable Power dissipation Pd max Mounted on a specified board. * 6 VIN+0.3 1 6 VDD+0.3 7 0.65 V V V V V V W Operating temperature Storage temperature Junction temperature Topr Tstg Tj max -40 to +85 -55 to +150 150 °C °C °C * Specified board: 24.0mm × 15.0mm × 1.6mm, glass epoxy 2-layer board. Caution 1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under...