LT1956EGN-5#PBF

降压（Buck）稳压器，内部电源开关，Linear Technology**Linear Technology** 提供一系列的步降（降压）切换调节器，带同步和非同步内部开关。 它们可提供 2.25V 到 30V 输入电压和多种切换频率。 它们可用于分布式供电系统、电池供电仪器和负载点电源等多种应用。### 开关电压调节器，Linear Technology**Linear Technology** 的同步型和非同步型内部开关调节器 IC 产品系列效率高、输入电压范围广、且开关频率高达 4 MHz。 该系列控制器包括多种配置：从降压（下降），升压（上压）、降压-升压、正向、隔离、反相和反激控制器。 反激、正向和隔离控制器（一次侧和二次侧）提供解决方案，帮助更换背板型电源转换中使用的直流/直流砖型转换器。

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