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SGMICRO SGM2051-ADJXG/TR SGM2051
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- SGMICRO SGM2051-ADJXG / TR
- Type
- SGMICRO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 104mV@(1.2A)
- Electronic Component
- SGMICRO
- Electronic Component
- 29uVrms
- Electronic Component
- SGM2051-ADJXG/TR
- Electronic Component
- 1
- Package
- WLCSP-0.8×1.2-6B-A
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.038g
- Electronic Component
- 1
- Features
- Current; Output
- Electronic Component
- BM0226916768
- Operating Temperature
- 40℃~+125℃@(Tj)
- Operating Voltage
- 5.5V
- Output
- Electronic Component
- Output Voltage
- 500mV~3.3V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SGM2051-ADJXG/TR 产品概述
一、概述
SGM2051-ADJXG/TR 是圣邦微（SGMICRO）推出的一款高性能可调线性稳压器(LDO)，针对移动与便携类系统、射频前端和高精度模数电路等场景优化。器件支持正极输出、最大工作电压5.5V，输出电压可调范围为0.5V~3.3V，最大输出电流1.2A，适合为常见低压数字/模拟核供电或外设供电。
二、主要性能亮点
- 宽输入电压：最高5.5V，兼容常见电源轨与锂电池方案。
- 可调输出：0.5V~3.3V 范围内任意设定，满足多种电压需求。
- 低压差：在满载1.2A时仅约104mV压差，有利于低差分供电，提升效率与续航。
- 低噪声与高PSRR：29 μVrms 噪声与70dB@1kHz 的电源纹波抑制比，能有效抑制电源和开关噪声，对 ADC、射频与传感器等敏感模块尤为重要。
三、功能保护与控制
SGM2051 集成了多项实用保护与控制功能，提升系统可靠性与电源管理灵活性：
- 短路保护与热关断（thermal shutdown）：在异常或过载条件下自动限制或关断输出，防止器件损坏。
- 反极性电流保护：防止电源关闭时因输出回流而影响上游电路。
- 输出放电：关断时快速将输出电容放电，缩短下电恢复时间并利于系统复位。
- 使能控制（EN）：支持片上逻辑控制或电源序列管理。
- 输入欠压保护（UVLO）：保证在输入电压不足时不发生不稳定输出。
四、封装与温度范围
- 封装：WLCSP-0.8×1.2-6B-A，超小封装适合空间受限的便携设备。
- 工作温度：-40℃ 至 +125℃ (Tj)，覆盖工业级温度需求。
五、典型应用场景
- 手机、平板与可穿戴终端的核心或外设电源。
- 无线通信与射频模块的低噪声电源（VCO/PA 偏置、射频前端）。
- 精密模数/数模电路供电（ADC、DAC、传感放大器）。
- 电池供电系统与多轨电源管理、I/O/外设电源轨。
六、设计注意事项与建议
- 稳定性与去耦：请参考器件手册选用合适输出/输入电容（通常低ESR陶瓷），并将电容靠近输入/输出引脚布局，走线尽量短且铜箔充足。
- 热管理：尽管器件为低压差设计，但在接近或满载1.2A时仍需要良好PCB散热（扩大GND与散热铜箔、增加过孔）。
- 输出设定：采用外部电阻分压器设定输出电压，建议选用高精度、低温漂电阻并将反馈节点布线最短；具体参考参考电压与推荐阻值请参阅数据手册。
- 电源序列与使能：合理利用使能脚与输出放电功能实现可靠的上电/断电序列。
- 保护与系统级考虑：在并联或多轨系统中注意反向电流路径与保护元件配合。
七、总结与获取资料
SGM2051-ADJXG/TR 以其低压差、低噪声、高PSRR 与多项保护功能，适用于对噪声和空间有较高要求的移动与精密电源应用。欲获取完整电气特性图、典型应用电路和版图建议，请下载并参阅圣邦微官方数据手册和评估资料，以便完成可靠的电源设计与验证。
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