The LT3431 utilizes a high efficiency 3A, 0.1Ω switch, with the necessary oscillator, control, and logic circuitry integrated into a single die. Special design techniques and a new high voltage process enable high efficiency over a wide input voltage range while its current mode topology enables fast transient response and excellent loop stability. Patented circuitry maintains peak switch current over the entire duty cycle range. Supply current is only 2.5mA during normal operation, while shutdown current is reduced to 30uA.
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