具有完整故障保护功能的高性能同步降压控制器
The is a DC-DC voltage mode PWM buck controller featuring synchronous rectification at 300 kHz or 1 MHz. It can deliver current as high as 20A and step down from an input voltage between 3V and 5.5V down to a minimum output voltage of 0.8V, with a ±1.75% internal reference accuracy. The LM3743 provides a set of comprehensive fault protection features such as high-side current limit, output under-voltage protection, and low-side current limit. When any of these fault protection features are engaged, it enters a hiccup protection mode which is suitable for high reliability systems such as rack mounted servers and telecom base station subsystems. The LM3743 also employs a proprietary monolithic glitch free pre-bias start-up method suited for FPGA and ASIC logic devices. An external programmable soft-start allows for tracking and timing flexibility. The driver features 1.6Ω of pull-up resistance and 1Ω of pull-down drive resistance for high power density and very efficient power processing.
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型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM3743 TI 德州仪器 | 当前型号 | 当前型号 |
LM2747 德州仪器 | 功能相似 | LM3743和LM2747的区别 |
LM2743 德州仪器 | 功能相似 | LM3743和LM2743的区别 |
LM2745 德州仪器 | 功能相似 | LM3743和LM2745的区别 |