LT3430-1

High Voltage, 3A, 200kHz Step-Down Switching Regulator; ·Wide Input Range: 5.5V to 60V\n·3A Peak Switch Current over All Duty Cycles\n·Constant 200kHz Switching Frequency200kHz(LT3430)100kHz(LT3430-1)\n·0.1 Ω Switch Resistance\n·Current Mode\n·Effective Supply Current: 2.5mA\n·Shutdown Current: 30µA\n·1.2V Feedback Reference Voltage\n·Easily Synchronizable\n·Cycle-by-Cycle Current Limiting\n·Small, 16-Pin Thermally Enhanced TSSOP Package\n;

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 circuity and by utilizing a supply boost capacitor to saturate the power switch. Patented circuity* 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.\nThe LT3430/LT3430-1 are available in a thermally enhanced 16-pin TSSOP package.\n

LT3430-1

High Voltage, 3A,200kHz/100kHz Step-Down Switching Regulators

LT3430-1_15

High Voltage, 3A, 200kHz/100kHz Step-Down Switching Regulators