菜单

关闭

LT8361

配备 2A 100V 开关的低 I_Q 升压/SEPIC/反相转换器

英文数据手册

Rev. 0

量产

顶部

概览

优势和特点
产品详情

优势和特点

宽输入电压范围：2.8V 至 60V
超低静态电源和低纹波 Burst Mode^® 操作：I_Q = 9μA
2A 100V 电源开关
通过单一反馈引脚进行正或负输出电压编程
可编程频率（300kHz 至 2MHz）
可与外部时钟同步
适用于低 EMI 的扩频调频
可通过 BIAS 引脚提高效率
可编程欠压锁定 (UVLO)
热法增强的 16 引脚 MSOP 封装

产品详情

LT8361 是一款配备 100V 2A 开关的电流模式直流/直流转换器，工作输入电压范围为 2.8V 至 60V。凭借独特的单一反馈引脚架构，它能够实现升压、SEPIC 或反相配置。Burst Mode 操作消耗低至 9μA 的静态电流，可在极低的输出电流下保持高效率，同时使典型输出纹波保持在 15mV 以下。

通过外部补偿引脚，可以在宽的输入和输出电压范围以及在介于 300kHz 和 2MHz 之间的可编程开关频率范围内优化环路带宽。通过 SYNC/MODE 引脚可与外部时钟同步。它还可用于在有或没有适用于低 EMI 的扩频调频功能的突发操作模式和脉冲跳跃操作模式之间进行选择。为了提高效率，BIAS 引脚可以接受第二个输入以便为 INTV_CC 稳压器供电。其他功能包括频率折返和可编程软启动，可在启动过程中控制电感器电流。

LT8361 采用热法增强的 16 引脚 MSOP 封装，拆除了四个引脚以增加高电压引脚间距。

应用

工业和汽车
电信
医疗诊断设备
便携式电子设备

产品分类

电源管理

领域

Automotive
- Automotive LIDAR

类似器件点击在参数搜索中查看所有

产品生命周期量产

该产品系列中至少有一个型号已量产并可供采购。该产品适合用于新设计，但也可能有更新的替代产品。

评估套件 (1)

DC2599A

LT8361 Demo Board | SEPIC, VIN = 4.5V to 48, VOUT= 24V @ up to 600mA

DC2599A

查看此评估套件详细信息

Demonstration circuit 2599A features the LT8361 in a SEPIC configuration. It operates with a switching frequency of 400kHz and is designed to convert a 4.5V to 48V source to 24V, with up to 600mA output current (depending on input voltage).

The LT8361 can operate with inputs as high as 60V. However, in this demo circuit, the input is limited by the voltage rating of the input capacitors.

The demo board contains a selectable jumper, JP1, to aid in the selection of the desired Sync pin mode of operation. The default setting is Burst Mode^® operation.

This layout is optimized for good EMI performance and small solution size. Input and output filters and an optimized power switching loop, comprised of C20 and C21 are necessary to pass CISPR 25 Class 5 emissions, and are added by default. These components can be excluded in applications not requiring noise immunity.

The data sheet gives a complete description of the device, operation and application information. The data sheet must be read in conjunction with this demo manual.

文档

数据手册 (1)

PDF

1.75 M

LT8361: Low IQ Boost/SEPIC/Inverting Converter with 2A, 100V Switch Data Sheet (Rev. 0)

评估板套件使用手册 (1)

PDF

400.85 K

DC2599A Demo Board Manual (Rev. 0)

工具及仿真模型

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.