The LT3431 is a 500kHz monolithic buck switching regulator that accepts input voltages up to 60V. A high efficiency 3A, 0.1Ω switch is included on the die along with all the necessary oscillator, control and logic circuitry. A current mode architecture provides fast transient response and good loop stability. Special design techniques and a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch. Patented circuitry maintains peak switch current over the full duty cycle range. A shutdown pin reduces supply current to 30µA and the device can be externally synchronized from 580kHz to 700kHz with logic level inputs. The LT3431 is available in a thermally enhanced 16-pin TSSOP package. Applications * Industrial and Automotive Power Supplies * Portable Computers * Battery Chargers * Distributed Power Systems * Wide Input Range: 5.5V to 60V * 3A Peak Switch Current * Small Thermally Enhanced 16-Pin TSSOP Package * Constant 500kHz Switching Frequency * Saturating Switch Design: 0.1Ω * Peak Switch Current Maintained Over Full Duty Cycle Range * Effective Supply Current: 2.5mA * Shutdown Current: 30µA * 1.2V Feedback Reference Voltage * Easily Synchronizable * Cycle-by-Cycle Current Limiting https://elecena.pl/product/246532/high-voltage-3a-500khz-step-down-switching-regulator 2007-03-01 https://elecena.pl/product/246532/high-voltage-3a-500khz-step-down-switching-regulator 2017-10-10 https://elecena.pl/product/246532/high-voltage-3a-500khz-step-down-switching-regulator 2025-01-17