The LT3500 is a current mode PWM step-down DC/DC converter with an internal 2.3A switch. The wide input range of 3V to 40V makes the LT3500 suitable for regulating power from a wide variety of sources, including automotive batteries, 24V industrial supplies and unregulated wall adapters. Resistor-programmable 250kHz to 2.2MHz frequency range and synchronization capability enable optimization between efficiency and external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown provide protection against a shorted output. The soft-start feature controls the ramp rate of the output voltage, eliminating input current surge during start-up, and also provides output tracking. The LT3500 contains an internal NPN transistor with feedback control which can be configured as a linear regulator or as a linear regulator controller. The LT3500’s low current shutdown mode (<12μA) enables easy power management in battery-powered systems. Applications * Automotive Battery Regulation * Industrial Control * Wall Transformer Regulation * Distributed Power Regulation * Wide Input Range: 3V to 36V Operating, 40V Maximum * Short-Circuit Protected Over Full Input Range * 2A Output Current Capability * Adjustable/Synchronizable Fixed Frequency Operation from 250kHz to 2.2MHz * Soft-Start/Tracking Capability * Output Adjustable Down to 0.8V * Adjustable Linear Regulator/Driver with 13mA Output Capability * Power Good Comparator with Complimentary Outputs * Low Shutdown Current: 12μA * Thermally Enhanced 3mm × 3mm DFN or 16-Pin MSOP Package https://elecena.pl/product/539418/monolithic-2a-step-down-regulator-plus-linear-regulator-controller 2007-10-16 https://elecena.pl/product/539418/monolithic-2a-step-down-regulator-plus-linear-regulator-controller 2017-10-09 https://elecena.pl/product/539418/monolithic-2a-step-down-regulator-plus-linear-regulator-controller 2025-01-22