LT8415

FEATURES n High Voltage Switches Built in (Dual half-bridge) n Ultralow Quiescent Current 10.5μA in Active Mode 0μA in Shutdown Mode n Comparator Built into SHDN pin n Low Noise Control Scheme 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) n Integrated Schottky Diode n Integrated Output Disconnect n High Value (12.4M/0.4M) Feedback Resistor Integrated n Built in Soft Start (Optional Capacitor from VREF to GND) n Over Voltage Protection for CAP, VOUT, OUT1 and OUT2 Pins n 12-Pin 3mm × 2mm DFN package APPLICATIONS n Sensor Power n RF Mems Relay Power n Low Power Actuator Bias/Control n Liquid Lens Driver LT8415 Ultralow Power Boost Converter with Dual Half-Bridge Switches DESCRIPTION The LT®8415 is an ultralow power boost converter with two integrated complementary 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 ...