LM3754 - 具有集成 FET 驱动器和线性稳压器控制器的可扩展 2 相同步降压控制器

LM3754是TI德州仪器公司的一款控制器（外部开关）产品，LM3754是具有集成 FET 驱动器和线性稳压器控制器的可扩展 2 相同步降压控制器，本站介绍了LM3754的封装应用图解、特点和优点、功能等，并给出了与LM3754相关的TI元器件型号供参考。

LM3754 - 具有集成 FET 驱动器和线性稳压器控制器的可扩展 2 相同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LM3754 is a full featured single-output dual-phase voltage-mode synchronous PWM buck controller. It can be configured to control from 2 to 12 interleaved power stages creating a single high power output. This controller utilizes voltage-mode control with input voltage feed-forward for high noise immunity. An internal average current loop forces real time current sharing between phases during load transients.

The LM3754 supports adjustable Soft-Start. The Soft-Start function can only drive the output upwards – it will not pull it down, therefore, pre-biased loads will not be discharged. Available in the 5 mm x 5 mm thermally enhanced 32-lead WQFN package with a thermal pad.

产品特性

Wide Input Voltage Range of 4.5V to 18V
Up to 12 Channels for 300A Load
System Accuracy Better Than 1%
0.6V to 3.6V Output Voltage Range
Switching Frequency From 200 kHz to 1 MHz
Phase Current Sharing ±12% Max Over Temperature
Integrated 4.35V ±2.3% LDO
Inductor DCR or Sense Resistor Current Sensing
Interleaved Switching for Low I/O Ripple Current
Integrated Synchronous NFET Drivers
Programmable Soft-Start
Pre-Biased Startup
Output Voltage Differential Remote Sensing
Minimum Controllable On-Time of Only 50 ns
Programmable Enable and Input UVLO
Power Good flag
OVP, UVP and Hiccup Over-Current Protection

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