WMSIC Electronic Components

XTX XTP2201-330AS1CT XTP2201

ModelXTP2201-330AS1CT
PackageSOT-23-3
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XTX XTP2201-330AS1CT
Type
XTX
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
135mV@(100mA)
Electronic Component
XTX
Electronic Component
XTP2201-330AS1CT
Electronic Component
1
Package
SOT-23-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.212g
Electronic Component
1
Features
Output
Electronic Component
BM0264754551
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
18V
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.

XTP2201-330AS1CT 产品概述

XTP2201-330AS1CT 是芯天下(XTX)推出的一款超低功耗线性稳压器(LDO),固定输出 3.3V,最大输出电流 500mA,工作输入电压最高可达 18V,封装为常见的 SOT-23-3。器件以极低静态电流和优秀的电源抑制比为特色,适用于对待机功耗敏感且需稳定 3.3V 电源的小型嵌入式与便携式系统。

一、主要特性

  • 输出电压:3.3V(固定型)
  • 最大输出电流:500mA
  • 工作电压范围:最高支持 18V 输入
  • 压差(Dropout):典型 135mV @ 100mA(在更高电流下压差将升高,详见规格表)
  • 静态电流(Iq):典型 1.8μA(超低静耗,适合低功耗待机)
  • PSRR:76dB @ 100Hz(良好低频纹波抑制)
  • 保护功能:过流保护(OCP)、热关断(TSD)、输出放电(shutdown discharge)
  • 控制:使能(EN)控制,可外部开关关断输出以进一步降低功耗
  • 输出通道:单路
  • 工作温度:-40℃ 至 +85℃(Ta)

二、性能及设计注意事项

  • 低静态电流和高 PSRR 使器件适合对噪声与待机功耗敏感的应用,但在高输入差(Vin - Vout)且高负载电流下,功耗将迅速上升,导致器件温升。举例:当 Vin = 18V、Vout = 3.3V、Iout = 500mA 时,器件需消耗约 7.35W 功耗,此功耗远超 SOT-23-3 的散热能力,不能在无额外散热的条件下持续工作。建议在高 Vin 应用中采用前置降压、限制输入电压或减小负载电流以避免热关断触发。
  • 压差参数以 100mA 条件下给出;若需在 500mA 输出下获得低压差,请参考完整数据手册中的典型曲线与最大值。
  • 输出电容对稳定性和瞬态响应至关重要。建议使用低 ESR 陶瓷电容(X5R/X7R)作为输出旁路,典型建议值为 2.2μF~10μF;输入侧建议并联 0.1μF~1μF 陶瓷电容以抑制输入瞬态。具体数值以器件数据手册中稳定性推荐为准。

三、封装与引脚

  • 封装:SOT-23-3(小型表贴,适合空间受限应用)
  • 典型功能引脚:输入(VIN)、地(GND)、输出(OUT);具有使能控制的版本在封装中可通过专用 EN 引脚或通过内部引脚复用实现,具体引脚排列请参见官方器件引脚图与封装说明。

四、应用场景

  • 电池供电便携设备(对待机功耗要求高)
  • 便携式传感器与测量仪器
  • 工业控制与通信模块中的 3.3V 本地线性稳压
  • 需要高 PSRR 的模拟前端电源(滤除低频纹波)

五、可靠性与使用建议

  • 在系统设计时优先保证器件的结温(Tj)在安全范围内,必要时通过 PCB 增加散热铜箔或使用降压预处理降低热耗。
  • 在高输入电压场合,优先考虑降压转换器与 LDO 结合使用,以平衡效率与输出噪声要求。
  • 使能控制(EN)可用于快速断电与减少待机耗电;输出放电功能在断电瞬间可以迅速释放输出电容残压,有利于系统复位。

XTP2201-330AS1CT 以其超低静耗、良好 PSRR 和完整保护功能,适合追求低功耗与稳健性的 3.3V 电源设计。选型与最终电路实施请结合完整数据手册中的热特性、压降曲线与元件稳定性说明。

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