WMSIC Electronic Components

WILLSEMI WL2817DA33-8/TR WL2817DA33

ModelWL2817DA33-8/TR
PackageDFN1612-8
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 WL2817DA33-8 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
70mV@(0.5A)
Electronic Component
WILLSEMI
Electronic Component
50uVrms
Electronic Component
WL2817DA33-8/TR
Electronic Component
1
Package
DFN1612-8
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.02g
Electronic Component
1
Features
Current
Electronic Component
BM0227559849
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
3.3V

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

WL2817DA33-8/TR 产品概述

一、概述

WL2817DA33-8/TR 是 WILLSEMI(韦尔)推出的一款低压差线性稳压器,固定输出 3.3V,面向空间受限且对噪声和纹波敏感的电源场合。器件提供高达 500mA / 1A 等级的输出能力(视具体型号),输入最高工作电压 5.5V。封装为紧凑的 DFN1612-8,适合便携和嵌入式系统使用。

二、主要特性

  • 固定输出:3.3V 正极单输出,输出通道数:1
  • 输出电流:支持 500mA 和 1A 等级(型号区分)
  • 低压差:70mV @ 0.5A(低压差特性,适合低压差供电)
  • 低静态电流:Iq = 160µA(有利于电池供电应用)
  • 低噪声:典型噪声 50µVrms
  • PSRR:60dB @ 1kHz(良好纹波抑制能力)
  • 保护功能:过热保护(OTP)、过流保护(OCP)、使能(EN)引脚支持开/关控制
  • 工作温度范围:-40℃ 至 +85℃(Ta)

三、性能优势

WL2817DA33-8/TR 在关键指标上表现出色:极低的压差在电源电压不足时仍能维持稳定输出;较低的静态电流配合使能控制,便于实现省电策略;高 PSRR 与低输出噪声使其成为对模拟与射频前端敏感的系统(如传感器采集、电台/射频模块、ADC 参考电源等)的理想后级稳压器。

四、典型应用场景

  • 电池供电设备与便携式终端(智能穿戴、手持仪器)
  • 传感器节点、物联网终端(对噪声和静态功耗有要求)
  • 模拟前端、ADC/DAC 参考电源和低噪声供电轨
  • 工业控制与通信设备的本地稳压与后级净化

五、设计与布局建议

  • 严格遵循器件数据手册中推荐的输入/输出旁路电容类型与数值,通常建议使用低 ESR 陶瓷电容并靠近引脚布局以提高稳定性与瞬态响应。
  • 使能(EN)引脚应与控制器逻辑直接相连或通过上拉/下拉电阻处理,确保上电/掉电顺序符合系统要求。
  • DFN1612-8 封装需良好铺铜散热,建议在 PCB 底层做散热通孔或大面积铜箔以提升热性能,降低热关断触发概率。
  • 输入、输出走线尽量短且粗,避免噪声耦合到敏感模拟电路。

六、封装与可靠性

DFN1612-8 小尺寸封装占板面积小、热阻低,适合高密度设计。WL2817DA33-8/TR 集成过流与过热保护,提高系统可靠性。实际设计时应参考厂方完整规格书以确认各项极限值、外部元件要求及温度漂移特性。

总结:WL2817DA33-8/TR 以其低压差、低噪声、低静态电流和完整的保护功能,适用于对噪声和效率有较高要求的嵌入式与便携式应用,是实现稳定 3.3V 电源的可靠选择。若需器件脚位图、典型应用电路或 PCB 参考设计,请参考官方数据手册或提供进一步的系统参数以便给出针对性建议。

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