WMSIC Electronic Components

UTC LR1801G-33-SH2-R LR1801G

ModelLR1801G-33-SH2-R
PackageHSOP-8-EP
BrandUTC
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UTC LR1801G-33-SH2-R
Type
UTC
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
230mV@(1000mA)
Electronic Component
UTC
Electronic Component
LR1801G-33-SH2-R
Electronic Component
1
Package
HSOP-8-EP
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.225g
Electronic Component
1
Electronic Component
BM69419662
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
6V
Output
Electronic Component
Output Voltage
3.3V
Output Current
1A
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.

LR1801G-33-SH2-R 产品概述

一、产品简介

LR1801G-33-SH2-R 是 UTC(友顺)推出的一款固定输出线性稳压器(LDO),输出电压为 3.3V,面向对噪声、稳定性和效率有较高要求的嵌入式与工业级应用。器件采用 HSOP-8-EP 封装,集成过流保护,额定输出电流 1A,适用于工作温度范围 -40℃ 到 +125℃(Tj)。

二、核心特性

  • 固定输出:3.3V 正极输出
  • 额定输出电流:1A
  • 过流保护:内置过流保护机制,提升系统可靠性
  • 低静态电流:静态电流(Iq)仅 60µA,适合对待机功耗敏感的设备
  • 低压差(Dropout):230mV @ 1000mA,支持在较低输入-输出压差下工作
  • 抑制电源纹波(PSRR):60dB @ 1kHz,有利于降低输入噪声对敏感负载的影响
  • 封装:HSOP-8-EP,带散热焊盘,便于 PCB 热管理

三、电气性能要点

LR1801G-33-SH2-R 在满载 1A 时压差仅约 230mV,意味着在输入电压略高于 3.53V 时仍能维持稳定 3.3V 输出。60µA 的低静态电流有助于降低空载或待机功耗;60dB 的 PSRR 在 1kHz 下能显著抑制来自开关电源或其他干扰源的纹波。

四、封装与散热建议

HSOP-8-EP 封装自带外露焊盘(EP),有利于热量从芯片导出。建议在 PCB 上布置大面积接地/散热铜箔并可靠焊接外露焊盘,以降低结壳温升并提升长时间大电流工作时的稳定性。

五、典型应用

  • 工业控制与传感器模块
  • 嵌入式主控与微处理器供电(3.3V 轨)
  • 通讯与网络设备的模拟/数字供电
  • 电池供电或便携式电子设备(对低静态电流有要求的场合)

六、设计注意事项

  • 输入侧应采用适当旁路电容以抑制输入源阻抗与瞬态,输出侧则需依据数据手册推荐选择稳定的输出电容以保证环路稳定性。
  • 在高负载场景下注意散热设计,合理布置散热铜箔并考虑空气对流条件。
  • 系统设计应预留足够的保护与滤波措施,充分利用器件内置过流保护提升可靠性。

如需具体电气特性曲线、典型应用电路或 PCB 布局范例,请提供是否需要我根据 LR1801G-33-SH2-R 的完整数据手册整理更详尽的设计指南。

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