LT1956IGN#PBF

LINEAR TECHNOLOGY  LT1956IGN#PBF  直流-直流开关降压逐步递减稳压器, 可调, 5.5V-60V输入, 1.2V-45V输出, 1.5A输出, SSOP-16

The is a monolithic buck Switching Regulator with an input voltage capability up to 60V. A high efficiency 1.5A, 0.2R 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 25µA and the device can be externally synchronized from 580 to 700kHz with a logic level input.

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Peak switch current maintained over full duty cycle range

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Easily synchronizable

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Cycle-by-cycle current limiting

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0.2R Saturating switch design

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2.5mA Effective supply current

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25µA Shutdown current