MAX17643

量产

4.5V–60V、2A、高效、同步降压DC-DC转换器，带内部补偿

60V同步降压转换器集成内部FET，可实现高效率和低温升

数据手册 (Rev. 1) 产品选型表

产品模型: 2

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产品详情

减少外部元件数量并降低总成本
- 无肖特基同步操作
- 提供内部补偿，以实现任何输出电压
- 全陶瓷电容设计，布局紧凑
减少DC-DC稳压器库存数量
- 宽输入范围：4.5V至60V
- 可调0.9V至(0.9 × V_IN)输出
- 峰值负载电流高达2A
- 400kHz至2.2MHz可调开关频率，具有外部同步功能
降低功耗
- 峰值效率：91.6%
- 辅助自举LDO，提高效率
- 关断电流：4.65μA
在恶劣工业环境中可靠运行
- 打嗝模式过载保护
- 可调软启动
- 内置通过低电平有效RESET监控输出电压的功能
- 可编程EN/UVLO阈值
- 单调启动进入预偏置负载状态
- 过温保护
- 较宽的工业级-40°C至+125°C工作温度范围/ -40°C至+150°C结温范围
- 符合CISPR32(EN55032)B类传导和电磁辐射骚扰相关要求

参考资料

数据手册 1

MAX17643: 4.5V–60V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation Data Sheet (Rev.1) 01/24/2022

ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。

产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
MAX17643ATC+	Thin Dual Flatpack No Leads	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX17643ATC+T	Thin Dual Flatpack No Leads	Material Declaration Reliablity Data	Ultra Librarian SamacSys

产品型号	产品生命周期	PCN
未找到匹配项目
4月 27, 2024 - 2400 ASSEMBLY
		pcn_2400
MAX17643ATC+	量产
MAX17643ATC+T	量产

这是最新版本的数据手册

工具及仿真模型

EE-Sim Power®工具 1

EE-Sim DC-DC转换器工具可根据您的要求快速创建完整的电源设计，包括原理图、BOM（采用市售部件）、时域和频域仿真。您可以下载自定义原理图，在独立EE-Sim OASIS仿真器中进一步分析，其中采用SIMPLIS和SIMetrix SPICE引擎。

立即开始EE-Sim

评估套件

RF Front-end GaN Power Amplifier Biasing, Protection, and Control Reference Design

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特性和优点

Designed to cover full Tx signal chains with integrated MCU and user-friendly GUI for faster and easier integration
Supports fault event protection - overvoltage (OV), overcurrent (OC), and overtemperature (OT)
Supports ultrafast sub-µs GaN gate voltage switching ~ (<1 µs)
Supports ultrafast (<10 µs) fault event protection from detection up to GaN gate pinch-off
Wide range of gate bias voltages from -10 V to +10 V
Configurable power-up and power-down sequence

产品详情

The AD-PAARRAY3552R-SL reference design provides control, protection, and proper biasing sequence for GaN power amplifier (PA) arrays. The design incorporates the AD3553R high-speed, dual-channel, 16-bit DAC to support the ultrafast sub-µs voltage settling time of GaN gates.

Key fault events, including overvoltage, overcurrent, and overtemperature, are effectively managed by the LTC7000, a static switch driver responsible for system fault protection.

The on-board MAX32666 ultralow-power ARM^® Cortex^®-M4 microprocessor provides essential debug and programming features for a comprehensive software development experience with the system. The system's firmware is built on ADI's open-source no-OS framework and includes a user-friendly graphical interface (GUI) for evaluation. Updates are easily applied through an SWD UART bootloader, streamlining prototyping.

The system can be powered by an external +48 V supply, requiring high current capabilities.

APPLICATIONS

5G massive MIMOs
Macro base stations

Specifications
Fault Events
Fault	Default Limit
Overvoltage	+55 V
Overcurrent	3.5 A
Overtemperature	75°C
Output Ports
Port Name	No. of ports
GaN gate ports	6
+48 V Gan drain ports	4
+5 V ports	5
Enable ports	2
Power Supply
External	+48 V DC at 5 A
Operating Conditions
Temperature Range	45°C to +75°C