LM3743 - 具有完整故障保护功能的高性能同步降压控制器

LM3743是TI德州仪器公司的一款控制器（外部开关）产品，LM3743是具有完整故障保护功能的高性能同步降压控制器，本站介绍了LM3743的封装应用图解、特点和优点、功能等，并给出了与LM3743相关的TI元器件型号供参考。

LM3743 - 具有完整故障保护功能的高性能同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LM3743 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 1.6? of pull-up resistance and 1? of pull-down drive resistance for high power density and very efficient power processing.

产品特性

Input Voltage From 3.0V to 5.5V
Output Voltage Adjustable Down to 0.8V
Reference Accuracy: ±1.75%, over Full Temperature and Input Voltage Range
High-Side and Low-Side N-Channel MOSFETs
Switching Frequency Options of 1 MHz or 300 kHz
Comprehensive Fault Protection Features:
- High-Side Current Limit
- Low-Side Current Limit
- Output Under-Voltage Protection
Hiccup Mode Protection Eliminates Thermal Runaway During Fault Conditions
Externally Programmable Soft-Start with Tracking Capability
Pre-Bias Start-Up Capability
VSSOP-10 Package

下面可能是您感兴趣的TI德州仪器公司控制器（外部开关）元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购