The LT3430/LT3430-1 are monolithic buck switching regulators that accept 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 excellent 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 a SYNC pin can be externally synchronized with a logic level input from 228kHz to 700kHz for the LT3430 or from 125kHz to 250kHz for the LT3430-1. The LT3430/LT3430-1 are 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 over All Duty Cycles * Constant Switching Frequency: * 200kHz (LT3430) * 100kHz (LT3430-1) * 0.1Ω Switch Resistance * Current Mode * Effective Supply Current: 2.5mA * Shutdown Current: 30µA * 1.2V Feedback Reference Voltage * Easily Synchronizable * Cycle-by-Cycle Current Limiting * Small, 16-Pin Thermally Enhanced TSSOP Package https://elecena.pl/product/246527/high-voltage-3a-200khz-step-down-switching-regulator 2007-03-01 https://elecena.pl/product/246527/high-voltage-3a-200khz-step-down-switching-regulator 2017-10-10 https://elecena.pl/product/246527/high-voltage-3a-200khz-step-down-switching-regulator 2025-01-20