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MICROCHIP MIC5504-2.8YM5-TR MIC5504
Configuration
1 options
Configuration
23+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MICROCHIP MIC5504-2.8YM5-TR
- Type
- MICROCHIP
- Minimum package
- 3000 个
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 160mV@(300mA)
- Electronic Component
- MICROCHIP
- Electronic Component
- 175uVrms
- Electronic Component
- MIC5504-2.8YM5-TR
- Electronic Component
- 1
- Package
- SOT-23-5
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.043g
- Electronic Component
- 1
- Features
- Output
- Electronic Component
- BM0247661654
- Operating Temperature
- 40℃~+125℃@(Tj)
- Operating Voltage
- 5.5V
- Output
- Electronic Component
- Output Voltage
- 2.8V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MIC5504-2.8YM5-TR 产品概述
一、产品简介
MIC5504-2.8YM5-TR 为美国微芯（Microchip）推出的一款高性能固定输出线性稳压器（LDO）。该器件在小体积 SOT-23-5 封装内提供单路正向 2.8V 稳压输出，适合对噪声、纹波抑制和低静态电流有要求的便携与嵌入式系统。器件支持使能控制，并具备过热与过流保护，可靠性高，易于系统集成。
二、主要性能参数
- 输出类型：固定（2.8V）
- 最大工作电压（输入）：5.5V
- 最大输出电流：300mA
- 压差（Dropout）：160mV @ 300mA
- 静态电流（Iq）：38µA（典型，低功耗）
- 电源纹波抑制比（PSRR）：60dB @ 1kHz
- 输出噪声：175µVrms
- 工作温度范围：-40°C ～ +125°C（Tj）
- 输出极性：正极，单通道
- 封装：SOT-23-5
三、关键特性与保护
- 带使能（EN）引脚：可实现电源输出的快速启停控制，降低待机功耗，便于电源域管理。
- 过热保护（Thermal Shutdown）：在过温条件下自动关断，防止器件和系统损毁。
- 过流保护（Current Limit）：在输出短路或大负载冲击时限制电流，增强系统安全性。
- 低压差特性与高 PSRR：160mV 的低压差在高负载下仍能保持稳定输出，60dB@1kHz 的 PSRR 有利于抑制外部电源纹波，适合对敏感模拟或 RF 前端供电。
四、封装与引脚信息
MIC5504-2.8YM5-TR 提供 SOT-23-5 小尺寸封装，便于空间受限的移动设备与消费类电子产品布局。实际设计中，应参考器件数据手册确认引脚排列与接地/热流路径，确保良好的散热与稳定工作。
五、典型应用与设计注意事项
- 典型应用：便携式设备、手持终端、微控制器供电、传感器前端、模/数混合电路的后级整流或去耦、低噪声模拟电源。
- 输入/输出电容：为保证稳定性和瞬态响应，建议在输入与输出端使用低 ESR 陶瓷电容并靠近器件封装放置（请参照官方数据手册确认最小与推荐容值范围）。
- 热量管理：在高 Vin–Vout 差和大电流条件下，LDO 损耗显著（P = (Vin−Vout)×Iout），SOT-23-5 封装热阻较大，设计时需评估功耗与散热（可通过降低压差、分担负载或改进 PCB 热铜分布来缓解）。
- 使能与软启动：利用 EN 引脚实现电源排序与省电模式；若系统对上电浪涌敏感，可在 EN 或输出端配合软启动电路以限制启动电流。
六、选型建议与订购信息
MIC5504-2.8YM5-TR 适用于要求低静态电流、良好纹波抑制和中等输出电流（≤300mA）的应用场景。当系统需在窄压差下工作且空间受限时，本器件为优选方案。采购与替代时请参照 Microchip 官方数据手册确认完整电气特性、引脚定义与推荐外围元件以保证系统性能与可靠性。
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