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TWGMC LM2596S-ADJ Converter LM2596S
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TWGMC LM2596S-ADJ
- Type
- TWGMC
- Minimum package
- 500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TWGMC
- Electronic Component
- LM2596S-ADJ
- Electronic Component
- 1
- Package
- TO263-5
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 1.97g
- Electronic Component
- 1
- Features
- Electronic Component
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0225962756
- Operating Temperature
- 40℃~+125℃@(TA)
- Operating Voltage
- 40V
- Switching Frequency
- 150kHz
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LM2596S-ADJ 产品概述
一、产品定位与主要规格
LM2596S-ADJ（TWGMC / 台湾迪嘉封装）是一款高效率、低外部元件的可调降压开关稳压器，适用于需要从较高电压降至可调输出电压的电源设计。主要参数如下：
- 输出类型：可调（1.2V ~ 37V）
- 最大输出电流：3A（在适当散热条件下）
- 输入工作电压上限：40V
- 开关频率：约150kHz
- 静态电流：80μA
- 同步整流：否（外部肖特基二极管需并联）
- 工作温度范围：-40℃ ~ +125℃（TA）
- 封装：TO-263-5（D2PAK 风格）
二、核心特性
LM2596S-ADJ 内置开关晶体管，简化驱动电路并减少元件数目。非同步整流结构虽然需要外接肖特基二极管，但在中等功率点仍能保持较高转换效率（典型效率可达70%~90%，视输入/输出差及负载而定）。150kHz 的开关频率在磁性元件体积与效率之间取得平衡，便于使用较小的电感与电容实现紧凑设计。
三、典型应用场景
适合用于工业控制、通信设备、电池供电系统、车载电子（输入电压在器件范围内）以及各种需要大电流、可调输出的配电模块。尤其适合替代线性稳压器以减少功耗和发热。
四、封装与热管理
TO-263-5（D2PAK）封装便于散热，底部大铜箔及焊盘设计可有效将热量传导到PCB，实际可用输出电流受散热条件限制。建议在PCB上使用大面积散热铜箔、加装过孔导热到底层并在必要时配合散热器或风冷，保证在高环境温度下可靠工作。
五、设计与使用建议
- 外围器件：推荐使用低ESR电解或固态电容作为输出滤波，合适感量与饱和电流等级的电感，以及低正向压降肖特基二极管（用于续流）。
- 输出电压设定：通过标准电阻分压配置反馈引脚实现1.2V~37V可调，注意反馈网络的精度与温漂。
- 布线与布局：开关节点（SW）及续流二极管附近走线要短且宽，输入电容靠近器件输入端，输出电容靠近输出端，以降低环路噪声与EMI。
- 保护措施：建议在高噪声或存在瞬态的场合增加输入浪涌抑制与滤波，同时遵循厂商建议的启动与软启动电路，防止输出过冲。
六、注意事项与采购信息
在实际选型时，请确认器件型号与供应商（TWGMC）标识、批次及器件数据手册中的最大额定值；高输入与大电流工况下应充分考虑热设计与电磁兼容（EMC）处理。若需Synchronous方案或更高开关频率以减小电感体积，可考虑其他同步整流器件。
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