LT3581

推荐新设计使用

具故障保护功能的 3.3A、升压 / 负输出 DC/DC 转换器

数据手册 产品选型表
产品模型
10
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
Viewing:

产品详情

  • 3.3A、42V 组合式电源开关
  • 主 / 从 (1.9A / 1.4A) 开关设计
  • 输出短路保护
  • 宽输入范围：工作时为 2.5V 至 22V，最大瞬态电压为 40V
  • 开关频率高达 2.5MHz
  • 可容易地配置成一个升压、SEPIC、负输出或反激式转换器
  • 可由用户进行配置的欠压闭锁
  • 低 VCESAT 开关：在 2.75A 时为 250mV (典型值)
  • 可同步至外部时钟
  • 可同步至其他开关稳压器
  • 高增益 SHDN 引脚可接受缓慢变化的输入信号
  • 14 引脚 4mm x 3mm DFN 和 16 引脚 MSE 封装
LT3581
具故障保护功能的 3.3A、升压 / 负输出 DC/DC 转换器
Output Short Protected, 5V to 12V Boost Converter Operating at 2MHz Efficiency and Power Loss vs Load Current Product Package 1 Product Package 2
添加至 myAnalog

将产品添加到myAnalog 的现有项目或新项目中（接收通知）。

创建新项目
提问

参考资料

数据手册 1

可靠性数据 1

用户手册 1

应用笔记 2

技术文章 3

了解更多
添加至 myAnalog

将产品添加到myAnalog 的现有项目或新项目中（接收通知）。

创建新项目

硬件生态系统

部分模型 产品周期 描述
浪涌抑制器、过压和过流保护 1
LTC4365
推荐新设计使用 欠压、过压和电源反向保护控制器
Modal heading
添加至 myAnalog

将产品添加到myAnalog 的现有项目或新项目中（接收通知）。

创建新项目

工具及仿真模型

LTspice 2

LTspice中提供以下器件型号：

  • LT3581
LTspice

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

评估套件

eval board
schematic 1
DC1424A-A

LT3581EMSE Demo Board | VIN = 5V to 10V, VOUT1 = 12V @ 900mA

立即购买 更多内容

产品详情

Demonstration circuits 1424A-A and 1424A-B feature the LT3581 in Boost and Inverting Regulator configurations, respectively. The Boost is designed to convert a 5V to 10V input source to 12V at 900mA, and the Inverter a 5V to 12V to -12V at 750mA. DC1424A-A is designed to survive output short circuit events with the external MOSFET installed at the output as default. The demo board includes an option to install the MOSFET at the input side. Install Q1 and R1 on the back of the board and refer to Figure 4 for other instructions. DC1424A-B can easily be converted into a SEPIC Converter by swapping L2 and D2 from their respective locations as shown in Figure 5. The LT3581 includes a 42V Master and Slave switch combination with 3.3A total current and can be used in many configurations such as Boost, SEPIC, CUK and Flyback.

eval board
schematic 2
DC1424A-B

LT3581EMSE Demo Board | VIN = 5V to 12V, VOUT1 = –12V @ 750mA

立即购买 更多内容

产品详情

Demonstration circuits 1424A-A and 1424A-B feature the LT3581 in Boost and Inverting Regulator configurations, respectively. The Boost is designed to convert a 5V to 10V input source to 12V at 900mA, and the Inverter a 5V to 12V to -12V at 750mA. DC1424A-A is designed to survive output short circuit events with the external MOSFET installed at the output as default. The demo board includes an option to install the MOSFET at the input side. Install Q1 and R1 on the back of the board and refer to Figure 4 for other instructions. DC1424A-B can easily be converted into a SEPIC Converter by swapping L2 and D2 from their respective locations as shown in Figure 5. The LT3581 includes a 42V Master and Slave switch combination with 3.3A total current and can be used in many configurations such as Boost, SEPIC, CUK and Flyback. It has a 2.5V to 22V operating input range, UVLO, soft-start, programmable switching frequency and many other popular features.
DC1424A-A
LT3581EMSE Demo Board | VIN = 5V to 10V, VOUT1 = 12V @ 900mA
DC1424A-A - Schematic
DC1424A-B
LT3581EMSE Demo Board | VIN = 5V to 12V, VOUT1 = –12V @ 750mA
DC1424A-A - Schematic

最新评论

3 年前
RE: lt8580
查看EngineerZone®的相关讨论

近期浏览