WMSIC Electronic Components

TA48L033F(TE12L,F) TA48L033F

ModelTA48L033F(TE12L,F)
PackageSOT-89
BrandTOSHIBA
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 23+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TOSHIBA TA48L033F(TE12L, F)
Type
TOSHIBA
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
500mV@(100mA)
Electronic Component
TOSHIBA
Electronic Component
85uVrms
Electronic Component
TA48L033F(TE12L,F)
Electronic Component
1
Package
SOT-89
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.147g
Electronic Component
1
Electronic Component
BM0257712419
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
12V
Output
Electronic Component
Output Voltage
3.3V
Output Current
150mA

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

TA48L033F(TE12L,F) 产品概述

一、产品简介

TA48L033F(TE12L,F) 是东芝(TOSHIBA)推出的一款低压差线性稳压器(LDO),为固定输出型号,输出电压为 3.3V,单通道正向输出,适用于对噪声和纹波抑制有一定要求的中低功率供电场景。封装采用 SOT-89(PW-MINI),小体积便于空间受限的电路板设计。

二、主要电气参数

  • 输出类型:固定(3.3V)
  • 输入工作电压:12V(典型应用时的最大输入示例)
  • 最大输出电流:150mA
  • 压差(Dropout):500mV @ 100mA(低压差特性,有利于降低输入电压头部要求)
  • 静态电流(Iq):800µA(待机功耗适中)
  • 电源纹波抑制比(PSRR):68dB @ 120Hz(对工频及整流后残留纹波有良好抑制)
  • 输出噪声:85µVrms(低噪声,适合 ADC、传感器等敏感模块)
  • 工作温度范围:-40℃ ~ +85℃(Ta)
  • 保护功能:热关断、过流保护
  • 输出极性:正极,单输出通道

三、关键特性与保护功能

TA48L033F 兼顾性能与可靠性:68dB 的 PSRR 在 120Hz 下能显著抑制来自电源的低频纹波,85µVrms 的输出噪声保证了对模拟前端与数模混合电路的友好性。内部集成热关断与过流保护,能在异常工况(过载、短路或散热不足)时限制输出并保护器件与负载。静态电流 800µA 在便携和待机场景属于中等水平,设计时应结合系统功耗预算评估。

四、热管理与功耗计算

当输入为 12V,输出 3.3V、负载 150mA 时,器件功耗 Pd = (Vin - Vout) × Iout = (12V - 3.3V) × 0.15A = 1.305W。SOT-89 封装空间小,器件自身散热能力有限,因此在此功耗下需要注意热管理:

  • 计算并满足结温条件:Tj = Ta + Pd × θJA,应确保不超过器件最大结温(请参考器件详细数据手册中的 Tjmax);
  • 在 PCB 上增大铜箔面积(特别是 GND 与散热焊盘),必要时增加过孔以传导热量到内层或底层铜;
  • 若系统环境温度较高或长期满载工作,建议降低输入电压或采用并联/替代散热能力更强的器件。

五、典型应用场景

  • 工业控制与传感器供电(需在 -40℃ 到 +85℃ 环境范围内稳定工作)
  • 单片机、数字逻辑与接口电源(3.3V 数字域)
  • 模拟前端、ADC/DAC 供电(利用低噪声、良好 PSRR 优势)
  • 通信模块、小型嵌入式设备的局部线性稳压

六、封装与引脚注意

TA48L033F 提供 SOT-89 小型封装,三引脚设计(输入、输出、地)。由于不同厂商/版本的封装引脚朝向可能存在差异,实际设计时请以官方数据手册为准,尤其关注外形尺寸和焊盘布局,以保证良好焊接和热传导。

七、设计建议与参考

  • 输入端:使用 0.1µF 陶瓷去耦电容紧邻 IN 引脚,抑制高频干扰;若输入源阻抗较高或有较大瞬态,建议并联更大容量电解或钽电容。
  • 输出端:为保证稳压器稳定并优化瞬态响应,建议在 OUT 端放置低 ESR 的电容(典型 1µF~10µF,具体容量与 ESR 范围请参照器件手册)。
  • 布局:电容尽可能靠近器件引脚放置,走线短而粗,地回路短小,避免将噪声敏感信号与电源回路交叉。
  • 输入电压裕量:虽然器件呈现 500mV@100mA 的低压差,但在更高负载电流或输入下降条件下压差会增加,设计时请留足头部电压以维持稳定输出。
  • 保护与测试:在批量设计前进行热仿真与实际负载测试,确认在最高环境温度和最大负载下仍有安全裕度。

总结:TA48L033F(TE12L,F) 是一款性能均衡的 3.3V 固定 LDO,适合对噪声和纹波有需求、但功率不大的嵌入式与工业应用。合理的 PCB 散热设计与输入电压安排是发挥其稳定性与可靠性的关键。

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