LT8410

FEATURES Ultralow Quiescent Current 8.5μA in Active Mode 0μA in Shutdown Mode n Comparator Built into SHDN pin n Low Noise Control Scheme www.DataSheet4U.com n Adjustable FB reference voltage n Wide Input Range: 2.5V to 16V n Wide Output Range : Up to 40V n Integrated Power NPN Switch 25mA Current Limit (LT8410) 8mA Current Limit (LT8410-1) n Integrated Schottky Diode n Integrated Output Disconnect n High Value (12.4M/0.4M) Feedback Resistors Integrated n Built in Soft-Start (Optional Capacitor from V REF to GND) n Overvoltage Protection for CAP and V OUT pins n Tiny 8-Pin 2mm × 2mm DFN package n LT8410/LT8410-1 Ultralow Power Boost Converter with Output Disconnect DESCRIPTION The LT®8410/LT8410-1 are ultralow power boost converters with integrated power switch, Schottky diode and output disconnect circuitry. The parts control power delivery by varying both the peak inductor current and switch offtime. This control scheme results in low output voltage ripple as well as high efficiency over a wide load range. The quiescent current is a low 8.5μA, which is further reduced to 0μA in shutdown. The internal disconnect circuitry allows the output voltage to be blocked from the input during shutdown. High value (12.4M/0.4M) resistors are integrated on chip for output voltage detection, significantly reducing input referred quiescent current. The LT8410/-1 also features a comparator built into the SHDN pin, over voltage protection for the CAP and VOUT pins, built in soft-start and com...