WMSIC Electronic Components

RENESAS ISL80102IRAJZ-T ISL80102IRAJZ

ModelISL80102IRAJZ-T
PackageDFN-10(3x3)
BrandRENESAS
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
RENESAS ISL80102IRAJZ-T
Type
RENESAS
Minimum package
6000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
49uVrms
Electronic Component
ISL80102IRAJZ-T
Electronic Component
1
Package
DFN-10(3x3)
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.125g
Electronic Component
1
Electronic Component
BM0257437681
Operating Temperature
40℃~+125℃
Operating Voltage
6V
Output
Electronic Component
Output Voltage
800mV~5.5V
Output Current
2A
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.

ISL80102IRAJZ-T 产品概述

一、产品简介

ISL80102IRAJZ-T 是瑞萨(Renesas)推出的一款高性能线性稳压器(LDO),为单通道可调输出的低压差、大电流应用提供稳定可靠的电源管理方案。该器件输出电流高达 2A,输出电压可调范围 800mV 至 5.5V,工作环境温度覆盖 -40℃ 到 +125℃,集成多重保护措施,适合对噪声、纹波抑制和动态性能有要求的模拟及混合信号系统。

二、关键规格

  • 输出类型:可调(单输出)
  • 最大输出电流:2A
  • 输出电压范围:0.8V ~ 5.5V(可通过外部电阻调整)
  • 工作电压(输入):6V(器件在此电压下工作,设计时应考虑输入电压裕量及功耗)
  • 电源纹波抑制比(PSRR):62 dB @ 120 Hz
  • 输出噪声:49 µVrms(典型)
  • 输出极性:正极
  • 工作温度范围:-40℃ ~ +125℃
  • 封装:DFN-10 (3 mm × 3 mm)
  • 主要保护:过流保护(OCP)、过热保护(OTP)

三、主要特性与保护功能

  • 低噪声:49 µVrms 的低输出噪声,适合对噪声敏感的模拟前端、ADC、RF 前端等场合。
  • 优秀的纹波抑制:在 120 Hz 下 PSRR 达到 62 dB,可有效抑制电源纹波对后端电路的影响。
  • 大输出电流能力:最高 2A 输出,能够直接驱动中等功率负载,如传感器供电、收发器、低压数字负载等。
  • 可调输出:0.8V 起可调到 5.5V,方便在单一器件上实现多种电压轨设计,节约板级空间与库存。
  • 保护机制:器件内置过流保护和过热保护,发生异常时自动限制或关断输出以保护自身和负载,提高系统可靠性。
  • 宽温度工作范围:-40℃ ~ +125℃,适应工业级和车规级相关应用环境(请依据实际认证和测试结果确认车规使用)。

四、封装与热管理建议

ISL80102IRAJZ-T 采用 DFN-10 3×3 小型封装,适合空间受限的 PCB 布局。由于器件能提供高达 2A 的输出电流,散热和功耗管理至关重要:

  • 留足散热铜箔:在 PCB 顶层和内层使用较大面积的散热铜箔,并连接至底部热焊盘(thermal pad)以降低结到环境的热阻。
  • 多孔过孔(vias):在热焊盘处打阵列过孔并通到内层或底层铜箔,提升热量传导能力。
  • 限定功耗范围:在高压差工况(Vin - Vout 大)或持续满载时器件功耗高,需评估结温并保证不超过最高工作温度。
  • 布局靠近负载:将 LDO 靠近被供电的敏感电路,以减少寄生阻抗和噪声耦合。

五、典型应用场景

  • 模拟电路和数据采集系统:为 ADC、DAC、放大器等提供低噪声电源。
  • 无线与射频前端:需低噪声、良好纹波抑制的供电场合。
  • 工业控制与嵌入式系统:为微控制器或传感器模块提供稳定电压轨。
  • 摄像头模块与传感器供电:对噪声敏感的图像传感器电源。
  • 通用电源管理:作为主电源或本地 LDO,为系统中不同电压轨提供可调输出。

六、设计注意事项

  • 输入与输出旁路电容:严格遵循器件数据手册建议的输入/输出电容类型与最小值,保证稳定性与瞬态响应。通常输入侧需有低 ESR 的去耦电容,输出侧按推荐选型以获得良好负载瞬态性能。
  • 设置输出电压:按规格书推荐的分压器网络选择阻值,注意分压器的容差和温漂对输出精度的影响。
  • 保护与启动行为:了解器件的上电启动特性、软启动(如有)和在保护动作后的恢复方式,以便系统整体行为可控。
  • EMI/EMC 考虑:在高频数字系统内使用时注意走线布局和滤波,避免噪声耦合到敏感电路。
  • 热循环与可靠性:在高功耗应用中进行热循环测试,确保长期可靠。

七、订购与替代建议

  • 品牌:RENESAS(瑞萨)
  • 封装:DFN-10 (3×3)
  • 型号:ISL80102IRAJZ-T(请以供应商或经销商最新数据与库存为准)
  • 替代方案:在设计时如需对比,可考虑同类规格的低噪声高 PSRR 线性稳压器,但替代器件应在输出电流、噪声、PSRR、可调范围与封装高度上逐项匹配与验证。

总结:ISL80102IRAJZ-T 以其低噪声、高 PSRR、大电流输出和工业级工作温度,适合需要稳定、干净电源的各类嵌入式与模拟系统。在 PCB 布局和热设计上给予充分考虑,能在空间受限的系统中提供可靠的电源解决方案。

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