WMSIC Electronic Components

WILLSEMI WL2815D30-4/TR WL2815D30

ModelWL2815D30-4/TR
PackageUDFN-4-EP(1x1)
BrandWILLSEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WL2815D30-4 / TR
Type
WILLSEMI
Minimum package
10000

Technical parameters

Electronic Component
75mV@(100mA)
Electronic Component
WILLSEMI
Electronic Component
50uVrms
Electronic Component
WL2815D30-4/TR
Electronic Component
1
Package
UDFN-4-EP(1x1)
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.009g
Electronic Component
1
Features
Output
Electronic Component
BM0227089749
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
3V
Output Type
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

WL2815D30-4/TR 产品概述

一、器件简介

WL2815D30-4/TR 是韦尔(WILLSEMI)推出的一款超低静态电流线性稳压器(LDO),固定输出 3.0V,支持最高工作电压 5.5V。器件面向低功耗、对噪声和电源纹波有要求的便携与物联网类应用,集成使能与短路保护功能,封装为紧凑型 UDFN-4-EP (1×1mm)。

二、主要参数(关键指标)

  • 输出类型:固定输出
  • 输出电压:3.0V
  • 允许工作电压:最高 5.5V
  • 压差(Dropout):75mV @ 100mA
  • 静态电流(Iq):1.5µA(典型,静态待机极低)
  • 噪声:50µVrms
  • 电源纹波抑制(PSRR):65dB @ 1kHz
  • 特性:带使能(EN);短路保护
  • 输出极性:正极输出
  • 输出通道数:1 通道
  • 工作温度:-40℃ ~ +85℃(Ta)
  • 封装:UDFN-4-EP (1×1)
  • 品牌:WILLSEMI(韦尔)
    型号:WL2815D30-4/TR

三、性能亮点与应用价值

WL2815D30-4/TR 以超低静态电流与高 PSRR 为主要卖点:1.5µA 的静态电流非常适合长期待机或电池供电的终端,可有效延长电池寿命;65dB @1kHz 的 PSRR 与 50µVrms 低输出噪声,适合对模拟前端、ADC、射频前端或敏感传感器电源的净化。75mV 的低压差(在 100mA 负载时)允许在电池电压接近输出电压时仍能稳定供电,适用于 3V 轨道紧凑设计。

四、典型应用场景

  • 电池供电的物联网终端、传感器节点、可穿戴设备
  • 对电源噪声敏感的模拟电路与采样系统(ADC、音频前端)
  • MCU/数字芯片的本地稳压供电
  • 便携消费电子与低功耗仪器仪表

五、设计注意事项

  • 电容器:为保证稳定与瞬态响应,建议在输入端和输出端靠近器件引脚放置低 ESR 陶瓷电容(典型建议 1µF~10µF,根据系统要求选择)。
  • 使能控制:EN 引脚用于外部开关控制,在不使用时可拉低关闭以实现更低功耗。
  • 布局与散热:尽管封装极小,但在高负载或连续工作时需注意加大底板铜箔和良好接地,为 UDFN 底部散热垫(EP)提供焊盘以改善热流散。
  • 保护功能:器件内置短路保护,可在异常条件下限制输出,但仍需在系统层面对故障情形进行保护设计(如限流或熔断器)。
  • 输入电压要求:保证输入电压高于输出电压加上压差(在大电流时考虑压差上升),以免进入掉压工作状态。

六、封装与可靠性

UDFN-4-EP (1×1mm) 小封装适合空间受限的移动与便携设备。工作温度范围 -40℃ ~ +85℃ 满足一般工业级和商业级环境要求。建议在产品开发中遵循厂家推荐的焊接和回流规范以确保封装可靠性。

总结:WL2815D30-4/TR 以低静态电流、低噪声、高 PSRR 和低压差的综合表现,适合对功耗与电源品质有双重要求的紧凑型系统,且带有使能与短路保护,便于系统电源管理与可靠性设计。

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