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TMI TMI32561
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TMI TMI32561
- Type
- TMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TMI
- Electronic Component
- TMI32561
- Electronic Component
- 1
- Package
- ESOP-8
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.19g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0264971638
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 4.5V~18V
- Switching Frequency
- 600kHz
- Electronic Component
- Electronic Component
- Output Current
- 6A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TMI32561 产品概述
一、简介
TMI32561 是拓尔微推出的一款高效率同步降压 DC-DC 转换器，采用恒定导通时间（COT）控制，适用于宽输入电压系统。芯片集成低导通电阻的主开关与同步开关，内部高集成度设计使其在高转换效率与快速瞬态响应之间取得良好平衡，支持可调输出，可为点对点、板级电源及各类嵌入式系统提供稳健的动力解决方案。
二、主要特点
- 输入电压范围：4.5V ～ 18V，适配多种电源总线
- 最大输出电流：6A，适合中大功率负载
- 开关频率：600kHz，利于小型电感和滤波器设计
- 同步整流：内置同步 MOSFET，降低导通损耗
- 控制模式：恒定导通时间（COT），快速瞬态响应
- 轻载高效模式，提升空载与轻载效率
- 保护功能：逐波限流（cycle-by-cycle）、打嗝限流（hiccup）等过流保护
- 静态电流（Iq）：340µA，适合低功耗待机场景
- 工作温度范围：-40℃ ～ +125℃，满足工业级要求
三、关键参数
- 拓扑结构：降压式（Buck）
- 输出通道数：1 通道，输出类型可调
- 开关管：内置高性能开关管，降低外部元件复杂度
- 封装形式：ESOP-8，便于散热与焊接工艺
四、性能与应用场景
TMI32561 在中高压差和高动态负载变化场合表现优越，COT 控制带来迅速的输出响应，适合电源管理模块、工业控制、通信设备、车载辅助电源、消费类电子及电池供电系统。内置同步整流和低静态电流设计，使其在追求高效率与低待机功耗的产品中具有明显优势。
五、封装与设计要点
- 封装：ESOP-8，推荐合理布线以保证热量散发和输入输出滤波效果
- 外围器件：选择低 DCR 电感与低 ESR 输出电容可进一步提升效率与瞬态性能
- 保护与调试：建议在 PCB 布局中考虑过流检测、热源隔离与良好散热路径以确保长期可靠性
TMI32561 综合了高集成度与多重保护特性，是面向工业与消费类应用的稳健降压选择。
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