WMSIC Electronic Components

RICHTEK RT9080-25GJ5 RT9080

ModelRT9080-25GJ5
PackageTSOT-23-5
BrandRICHTEK
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RICHTEK RT9080-25GJ5
Type
RICHTEK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
630mV@(600mA)
Electronic Component
RICHTEK
Electronic Component
RT9080-25GJ5
Electronic Component
1
Package
TSOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.026g
Electronic Component
1
Electronic Component
BM0264871447
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
2.5V
Output Current
600mA
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.

RT9080-25GJ5 产品概述

RT9080-25GJ5 是 RICHTEK(台湾立锜)推出的一款高性能、低功耗线性稳压器 (LDO),为固定输出 2.5V、最高 600mA 负载电流的正极性稳压需求提供紧凑且可靠的方案。器件采用 TSOT-23-5 小封装,针对便携、低功耗与对电源噪声敏感的应用优化,兼具优秀的电源纹波抑制能力与多重保护机制,适合为微控制器、射频前端、传感器模组等关键电源轨供电。

一、主要性能亮点

  • 输出电压:固定 2.5V,输出极性为正。
  • 最大工作电压:适用于最高输入电压 5.5V 的系统环境。
  • 最大输出电流:600 mA(连续)。
  • 压差(Dropout):630 mV @ 600 mA,适合中等电压差应用场景。
  • 静态电流 IQ:仅 2 μA(典型),非常适合电池供电与待机节能场景。
  • 电源纹波抑制比(PSRR):75 dB @ 1 kHz,能有效抑制 1 kHz 附近的电源干扰,提高系统噪声性能。

二、控制与保护功能

  • 使能控制(EN):外部使能引脚支持软开关和电源管理策略,便于系统电源序列控制与功耗管理。
  • 过流保护(OCP):限制输出电流,防止负载短路或异常负载损坏器件与系统。
  • 短路保护:在输出短路时触发保护,保障器件与供电源的安全。
  • 热关断(Thermal Shut-down):当结温异常升高时自动关断,防止热失效并在温度降低后自动恢复。

三、电气与热特性(系统设计相关)

  • 工作结温范围:-40°C 至 +125°C(Tj),适应工业级温度环境。
  • 低待机电流使该器件在深度睡眠或待机模式下对电池影响极小。
  • 在高负载或高环境温度下需关注封装功耗耗散,建议在 PCB 设计时提供足够的铜箔散热面积以提升热性能。

四、封装与物理特性

  • 封装类型:TSOT-23-5(小型、表面贴装),利于空间受限的便携式与消费类产品使用。
  • 单通道固定输出,简化外围组件与校准过程。
  • 小尺寸封装有利于高密度 PCB 布局,但需注意散热通道的设计(例如底层地铜或散热层)。

五、典型应用场景

  • 电池供电的便携式设备(可穿戴、手持终端、数据采集器等)。
  • 物联网终端(传感器节点、无线模块电源)。
  • 射频/模拟前端电源(需较高 PSRR 的应用)。
  • 工业控制或车载辅助电源(在满足温度与输入条件下)。
  • 作为 MCU、ADC/DAC、传感器等敏感电路的局部稳压电源。

六、设计与布局建议

  • 输入端建议靠近 VIN 引脚放置适当的去耦电容,以抑制源阻抗引起的瞬态电压跌落;常用低 ESR 陶瓷电容(例如 1 µF~10 µF)作为参考。
  • 输出端需配合合适输出电容保证稳压器稳定性与瞬态响应,选择符合器件稳定性要求的陶瓷电容并参考厂家评估板推荐值。
  • EN 引脚以逻辑电平控制,若不使用需按规格书建议上拉或下拉以防误触发。
  • 在高功耗工况下,尽量增加 GND 区域和散热铜量,减少热阻以获得更好热稳定性。
  • 布线尽量短且宽,电源与地走线分层处理,敏感信号远离大电流回路以降低干扰。

七、选型理由与竞争优势

  • 极低的静态电流(2 µA)使其在电池驱动应用中具备显著续航优势。
  • 高达 75 dB 的 PSRR(1 kHz)在对电源噪声敏感的射频或模拟前端应用中表现优异。
  • 完善的保护功能(过流、短路、热关断)提高系统可靠性,减少外部保护电路需求。
  • 小型 TSOT-23-5 封装兼顾体积与成本,适合大批量生产与空间受限产品。

八、获取与进一步资料

如需设计使用,请参考 RICHTEK 官方数据手册获取完整电气规范、典型特性曲线、参考电路与封装引脚定义。结合具体系统需求(输入范围、瞬态电流、散热预算)进行评估与实验验证,以确保在目标工况下达到稳定可靠的电源表现。

总结:RT9080-25GJ5 以其低静态电流、高 PSRR、内建多重保护和紧凑封装,为对噪声、功耗和可靠性有较高要求的中功率(≤600 mA)电源应用提供了成熟且经济的解决方案。

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