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Slkor SY8120B
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Slkor SY8120B
- Type
- SLKOR
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SLKOR
- Electronic Component
- SY8120B
- Electronic Component
- 1
- Package
- SOT-23-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.043g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0228146959
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4V~16V
- Switching Frequency
- 600kHz
- Electronic Component
- Electronic Component
- Output Current
- 2A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SY8120B 产品概述
一、产品简介
SY8120B 是一款降压型同步整流 DC-DC 开关稳压器，适用于需要高效率、小尺寸和中等功率输出的嵌入式系统。器件内置开关管，工作开关频率 600kHz，单路输出、可调电压、最大输出电流 2A，工作温度范围 -40℃ ~ +85℃，封装为 SOT-23-6，适合空间受限的应用场景。品牌：Slkor（萨科微）。
（备注：基础参数标注工作电压为 4V~16V，市场或资料中有时会见到 18V 的描述，选型时请以器件规格书和供应商确认值为准。）
二、主要规格与特性
- 拓扑：降压（同步整流）
- 输入电压：典型范围 4V ~ 16V（请参考数据手册）
- 输出电流：最大 2A
- 开关频率：600kHz（固定）
- 静态电流 Iq：约 200µA（待机低功耗特性）
- 开关管：内置（简化外部元件）
- 输出类型：可调（通过外部分压电阻设置）
- 工作温度：-40℃ ~ +85℃
- 封装：SOT-23-6
- 同步整流：支持，提高效率、降低散热
三、典型应用
- 汽车与工业供电子模块（12V 或 24V 系统降压需注意输入规格）
- 通讯设备、单板计算机与嵌入式控制器的 5V / 3.3V 电源
- 便携式仪器、消费电子中要求中等电流的点对点电源
四、设计与选型建议
- 电感：根据输出电压/电流及允许电流纹波选择，典型值在 2.2µH ~ 10µH 区间（实例：VIN=12V，VOUT=5V，取电流纹波约 30% 时 L≈4.7µH~6µH）。电感需有足够的饱和电流裕量（> 2A）。
- 输入/输出电容：建议使用低 ESR 陶瓷电容（X5R/X7R），输入至少 10µF，输出 22µF~47µF 以保证负载瞬态性能。
- 反馈网络：通过外部分压电阻设定输出电压，注意反馈引脚与地的走线短且稳定。
- PCB 布局：VIN 与 GND 电容靠近器件 VIN/GND 引脚放置，开关节点（SW）走线短且避开敏感模拟节点；增大铜箔面积作为散热路径，必要时加散热过孔。
五、封装与热管理
SOT-23-6 小封装适合紧凑系统，但在 2A 等级下热耗较大。建议在 PCB 设计中增大 GND 和 VIN 区域的铜箔面积，使用热过孔连接到内部/底层铜层，保证器件在高负载时温升可控。
六、注意事项与资料获取
- 选型前务必查看完整数据手册，确认绝对最大额定值（尤其是输入电压和焊接温度）。
- 验证保护特性（过流保护、热关断、欠压锁定等）是否满足系统需求；若资料未明确，应向供应商咨询。
- 推荐在样板上进行热测试与负载瞬态测试，校准电感与电容选型以获得最佳效率与稳定性。
总结：SY8120B 以其 600kHz 高频率、同步整流和低静态电流特点，适合要求紧凑尺寸与较高效率的降压电源设计。具体设计细节请参考器件数据手册并结合实际应用进行验证。
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