LT8415 Datasheet | Linear Technology

Features nn High Voltage Switches Built In (Dual Half-Bridge) nn Ultralow Quiescent Current nn 10.5μA in Active Mode nn 0μA in Shutdown Mode nn parator Built into SHDN Pin nn Low Noise Control Scheme nn Adjustable FB Reference Voltage nn Wide Input Range: 2.5V to 16V nn Wide Output Range: Up to 40V nn Integrated Power NPN Switch (25m A Current Limit) nn Integrated Schottky Diode nn Integrated Output Disconnect nn High Value (12.4M/0.4M) Feedback Resistor Integrated nn Built in Soft Start (Optional Capacitor from VREF to GND) nn Over Voltage Protection for CAP, VOUT, OUT1 and OUT2 Pins nn 12-Pin 3mm × 2mm DFN package APPLICATIONS nn Sensor Power nn RF Mems Relay Power nn Low Power Actuator Bias/Control nn Liquid Lens Driver Ultralow Power Boost Converter with Dual Half-Bridge Switches DESCRIPTION The LT®8415 is an ultralow power boost converter with two integrated plementary MOSFET half-bridges (N- and P-channel), integrated power switch, Schottky diode and output disconnect circuitry. The N-channel and P-channel MOSFETs in each half-bridge are synchronously controlled by a single input pin, and never turn on at the same time in typical applications. The boost regulator controls power delivery by varying both the peak inductor current and switch off-time. 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 10.5μA, 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 LT8415 also Features a parator built into the SHDN pin, overvoltage protection for the CAP, VOUT, OUT1 and OUT2 pins, built in soft start and es in a tiny 12-pin 3mm × 2mm DFN package. L, LT, LTC and LTM are registered trademarks of Linear Technology...