WMSIC Electronic Components

XTX XTP2038-330AS2CT XTP2038

ModelXTP2038-330AS2CT
PackageSOT-23-5
BrandXTX
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
XTX XTP2038-330AS2CT
Type
XTX
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
180mV@(300mA)
Electronic Component
XTX
Electronic Component
XTP2038-330AS2CT
Electronic Component
1
Package
SOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.051g
Electronic Component
1
Features
Output
Electronic Component
BM0264753708
Operating Temperature
40℃~+85℃
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
3.3V
Output Current
500mA

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

XTP2038-330AS2CT 产品概述

XTP2038-330AS2CT 是芯天下(XTX)推出的一款高性能、低功耗线性稳压器(LDO),为固定输出 3.3V、最大输出电流 500mA 的单通道稳压器。器件采用 SOT-23-5 小型封装,集成多种保护与控制功能,适合便携式、低功耗与空间受限的电源方案。

一、主要特性(概览)

  • 输出极性:正极(正输出)
  • 输入电压:最高 5.5V(实际最低输入需高于输出电压加压差,详见下文)
  • 输出电压:固定 3.3V
  • 最大输出电流:500mA
  • 典型压差(Dropout):180mV @ 300mA
  • 静态电流(Iq):15μA(低静态电流,有利于电池供电系统延长待机时间)
  • 功能特性:热关断(thermal shutdown)、使能控制(EN)、短路/限流保护、输出放电(Output Discharge)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 输出类型:固定输出,单通道
  • 封装:SOT-23-5

二、功能与保护机制

  • 热关断:内置过温保护,当芯片结温超过安全值时自动关断输出,待温度下降后自动恢复,保护器件及系统安全。
  • 短路与限流保护:内部限流或折返式限流策略在输出短路或过载时限制电流,减少器件与外部负载损伤。
  • 使能控制(EN):外部使能引脚可实现软开关、节电或由上级控制器统一管理电源状态;EN 为高电平使能,低电平禁能(具体阈值请参见产品数据手册)。
  • 输出放电:禁能状态下输出端有放电通路,可将输出快速拉低至接地,避免输出悬空导致系统误动作或上电毛刺。

三、电气与性能要点

  • 低压差特性:在中等负载(如 300mA)下,本器件典型压差仅 180mV,有利于降低功耗并在有限的 Vin- Vout 差值下仍能提供稳定 3.3V 输出。需注意在更高电流(接近 500mA)时压差会上升,实际应用应以数据手册为准。
  • 低静态电流:典型 15μA 的静态电流适合对待机功耗敏感的电池供电设备。
  • 输出稳定性:LDO 对输入与输出电容类型和容值敏感,建议使用低 ESR 的陶瓷电容(如 X5R/X7R)作为输入与输出滤波电容,并将电容紧贴引脚布局以保证稳态与瞬态性能。

四、应用注意事项与布局建议

  • 输入与输出电容:为保证稳定性和瞬态响应,推荐在输入端使用 1μF ~ 10μF 的陶瓷去耦电容,输出端同样建议 1μF ~ 10μF 的 X5R/X7R 陶瓷电容。精确值和 ESR 要求请参考详细数据手册。
  • PCB 布局:VIN、VOUT 与 GND 之间布线要尽可能短且粗,输入去耦电容与芯片 VIN 引脚距离尽量靠近;输出电容靠近 VOUT 引脚放置以减小环路面积。GND 采用完整的地平面或加大焊盘以利散热。
  • 热管理:线性稳压器的功耗等于 (Vin - Vout) × Iout。在最大输入 5.5V、输出 3.3V、全负载 500mA 时,器件功耗约为 (5.5 - 3.3) × 0.5 = 1.1W。SOT-23-5 封装的散热能力有限,长时间高功耗工况下需采取 PCB 大铜箔散热、减少环境温升或降低负载电流,以免触发热关断或过热降额。
  • 启动与 EN 控制:EN 引脚可用于上电时序管理或系统节电。若需将 EN 与 MCU 或其他逻辑直接相连,请确认电平阈值及上拉/下拉需求。

五、典型应用场景

  • 电池供电设备:便携式仪器、可穿戴设备、传感器节点(IoT)。
  • USB/5V 供电的子系统:将 5V 或 4.xV 电源稳压为 3.3V 为 MCU、射频模块、传感器供电。
  • 工业与消费类电子:低功耗控制器、电源管理模块、外设供电。
  • 通信与无线模块:为射频前端、收发芯片等提供稳定的 3.3V 参考电源(注意热耗与噪声需求)。

六、封装与订购信息

  • 封装:SOT-23-5,适合 SMT 小型化 PCB 布局。
  • 品牌:XTX(芯天下)——面向通用与便携电源管理需求的线性稳压器产品线。
  • 合规与可靠性:通常可提供符合常见环保与可靠性要求(如无铅/RoHS 等)的版本,具体认证与封装形式及订购编码请咨询芯天下或代理商并参阅产品数据手册。

总结:XTP2038-330AS2CT 以其低静态电流、低压差以及集成保护与控制功能,适合对功耗与尺寸敏感的 3.3V 供电设计。在应用中关注输入输出电容选择、PCB 散热设计与 EN 管理,可充分发挥器件的性能与可靠性。欲获得完整电气特性曲线、引脚定义和典型应用电路,请参考官方数据手册或联系芯天下技术支持。

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