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WILLSEMI WL2848D12-4/TR WL2848D12
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- WILLSEMI WL2848D12-4 / TR
- Type
- WILLSEMI
- Minimum package
- 10000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- WILLSEMI
- Electronic Component
- 18uVrms
- Electronic Component
- WL2848D12-4/TR
- Electronic Component
- 1
- Package
- DFN1x1-4L
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.017g
- Electronic Component
- 1
- Features
- Built-in;;; Output
- Electronic Component
- BM0091195603
- Operating Temperature
- 40℃~+85℃@(Ta)
- Operating Voltage
- 5.5V
- Output
- Electronic Component
- Output Voltage
- 1.2V
- Output Current
- 300mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WL2848D12-4/TR 产品概述
一、产品简介
WL2848D12-4/TR 是 WILLSEMI（韦尔）推出的一款低噪声、低静态电流的固定输出线性稳压器（LDO），输出电压为 1.2V，面向空间受限且对噪声和可靠性有要求的便携与嵌入式应用。该器件集成了使能（EN）控制、短路保护和过热保护，便于系统电源管理与安全设计。
二、主要特性
- 固定输出：1.2V。
- 最大工作电压（Vin）：5.5V。
- 最大输出电流：300mA。
- 静态电流（Iq）：典型 58µA，适合低功耗待机应用。
- 输出极性：正极。
- 噪声：18µVrms（典型），适合低噪声模拟前端与射频电路。
- 保护功能：内置短路保护与过热保护，支持器件自恢复。
- 控制接口：带使能（EN）引脚，便于功耗管理与电源 sequencing。
- 工作环境温度：-40℃ 至 +85℃（Ta）。
三、电气与环境指标
WL2848D12-4/TR 为固定型 LDO，强调低噪声与低静态电流，适合电池供电与能量敏感系统。器件在典型工况下能提供稳定的 1.2V 输出并能在瞬态负载变化中保持良好抑制。内部保护电路提升系统可靠性，但在系统设计时仍需考虑热耗散与最大输出限制。
四、封装与热管理
封装为 DFN1x1-4L，尺寸非常紧凑，利于高密度 PCB 布局。由于封装面积小，热阻相对较高，建议在 PCB 设计中对散热做优化：增设顶层与底层散热铺铜、在器件下方或附近布置热过孔（thermal vias）并连接到内层或背板散热层，以提高散热能力并保证在 300mA 输出时的稳定工作。
五、典型应用场景
- 移动/便携终端、可穿戴设备电源管理；
- 低噪声模拟电路、ADC/DAC 供电；
- 传感器前端与射频收发器本振供电；
- 工业控制与物联网节点的局部稳压电源。
六、使用建议与注意事项
- 输出与输入端应使用合适的去耦电容（参考厂商数据表），保证稳压器稳定工作并优化瞬态响应。
- EN 引脚用于开关输出，设计时注意其电平门槛与上拉/下拉配置以实现可靠使能/禁能。
- 在高电流或高温工况下，关注器件温度并做好 PCB 散热设计，避免触发过热保护导致输出中断。
- 虽然器件具备短路保护，但 PCB 布局与走线应尽量降低电流集中与热集中风险。
七、封装与订购信息
该型号封装为 DFN1x1-4L，规格代号 WL2848D12-4/TR（TR 表示卷带包装，适合自动贴片生产）。欲获取更详尽的电气特性曲线、典型应用电路与推荐外部电容信息，请参阅 WILLSEMI 官方数据手册或联系供应商技术支持。
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