WMSIC Electronic Components

WILLSEMI WL2815D18-4/TR WL2815D18

ModelWL2815D18-4/TR
PackageX2-DFN1010-4-EP
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WL2815D18-4 / TR
Type
WILLSEMI
Minimum package
10000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
50uVrms
Electronic Component
WL2815D18-4/TR
Electronic Component
1
Package
X2-DFN1010-4-EP
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.011g
Electronic Component
1
Features
Output
Electronic Component
BM0231116230
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
1.8V
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.

WL2815D18-4/TR — 1.8V 固定线性稳压器 产品概述

一、产品简介

WL2815D18-4/TR 是 WILLSEMI(韦尔)推出的一款小尺寸、低功耗、正输出的固定 1.8V 线性稳压器。器件封装为 X2-DFN1010-4-EP,适合对体积和成本敏感的便携与嵌入式系统。典型工作条件下,器件在工作电压 5.5V 下提供稳定的 1.8V 输出,工作温度范围为 -40℃ 至 +85℃(Ta)。

二、主要性能指标

  • 输出类型:固定(1.8V)
  • 工作电压:5.5V(器件规定工作电压下)
  • 静态电流 Iq:1.5 µA(低静态电流,利于电池供电)
  • 噪声:50 µVrms(低输出噪声)
  • 电源纹波抑制比 PSRR:65 dB @ 100 Hz(优秀的低频纹波抑制)
  • 特性:带使能(EN)引脚、短路保护
  • 输出极性:正极,单路输出

三、关键特性与优势

  • 低静态电流:1.5 µA 的静态电流适合待机或功耗敏感设计,可显著延长电池寿命。
  • 优良的噪声与 PSRR:50 µVrms 噪声与 65 dB(100 Hz)PSRR 能有效净化来自开关电源或数字电路的干扰,适合模拟前端与射频敏感电路的后端供电。
  • 带使能与短路保护:EN 控制方便系统级电源管理;短路保护提升系统可靠性,避免异常电流损坏器件或负载。
  • 紧凑封装:X2-DFN1010-4-EP 体积小,适合空间受限的移动设备与 IoT 节点。

四、典型应用场景

  • 电池供电的便携终端与可穿戴设备
  • MCU 与数字逻辑的低压供电轨(1.8V)
  • 模拟/传感器前端及射频模块的后端滤波稳压
  • 物联网节点、智能家居与工业控制子模块

五、设计与布局建议

  • 输入/输出去耦:建议在 VIN 与 VOUT 近旁放置低 ESR 陶瓷去耦电容(常见选型范围 1 µF–10 µF),以保证瞬态响应与稳定性,具体容量应参考系统负载与器件数据手册。
  • EN 控制:EN 引脚用于系统电源管理,务必遵循上/下降沿时序及电平要求以避免误动作。
  • 散热与板形:尽管封装小巧,长时间大电流工况下仍需注意热量集中,合理布置散热铜箔并连接底部热焊盘(EP)。
  • 保护与测试:在系统验证阶段检查短路保护行为与恢复特性,确保与负载、上电序列兼容。

六、封装与可靠性

X2-DFN1010-4-EP 封装提供小尺寸与可焊接的热垫,便于高速自动贴装与回流焊工艺。器件在工业级温度范围内(-40℃~+85℃)可靠工作,适合大多数消费与工业应用。

七、选型建议

WL2815D18-4/TR 适用于对低静态电流、低噪声与良好纹波抑制有要求的 1.8V 供电场合。选型时请参考厂方数据手册以获取完整电气特性、引脚定义、典型应用电路及去耦要求,确保满足系统电流、热耗与启动时序等具体约束。

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