WMSIC Electronic Components

TI TLV77333PDBVR

ModelTLV77333PDBVR
PackageSOT-23-5
BrandTI
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
TI(Texas Instruments) TLV77333PDBVR
Type
TI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
180mV@(300mA)
Electronic Component
TI(Texas Instruments)
Electronic Component
TLV77333PDBVR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.033g
Electronic Component
1
Features
Output;;;; Built-in
Electronic Component
BM0227644982
Operating Temperature
40℃~+125℃
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
3.3V
Output Current
300mA

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

TLV77333PDBVR 产品概述

TLV77333PDBVR 是德州仪器(TI)推出的一款高PSRR、低静态电流、低压差线性稳压器,面向对噪声、效率和封装面积有较高要求的便携与工业应用。该器件在最大工作电压 5.5V 输入下输出稳定的 +3.3V,连续输出电流可达 300mA,结合丰富的保护与控制功能,适合单通道电源管理。

一、主要特点

  • 输出极性:正极,固定输出 3.3V
  • 最大输出电流:300mA
  • 低压差(LDO):典型压差 180mV @ 300mA
  • 高电源纹波抑制:PSRR = 72dB @ 1kHz
  • 低静态电流(Low-IQ),适合电池供电系统
  • 封装:SOT-23-5,单通道设计,体积小

二、关键保护与控制功能

  • 输出放电(Output discharge):关闭时能快速放电输出,保证系统确定的复位行为
  • 过流保护与短路保护:自动限制输出电流,增强系统可靠性
  • 使能控制(EN):通过外部逻辑控制器件开关,便于电源管理
  • 内置软启动:限制启动浪涌,减少输入侧冲击
  • 热关断与输入欠压保护(UVLO):防止高温与欠压工况损坏器件

三、热与电气设计要点

  • 热管理:在 VIN = 5.5V、VOUT = 3.3V、IOUT = 300mA 时,功耗约为 (5.5-3.3)×0.3 ≈ 0.66W,SOT-23-5 封装需注意 PCB 走铜与散热设计以控制结温,避免触发热关断
  • 输出电容:器件支持陶瓷输出电容以保证稳态与瞬态性能,具体最小容量与 ESR 要求请参见 TI 数据手册
  • 布局建议:输入电容靠近 VIN 引脚放置,GND 回流良好以保持 PSRR 与稳定性

四、典型应用场景

  • 电池供电的便携设备与可穿戴终端
  • 无线通信与射频前端,受益于高 PSRR 的噪声抑制
  • 精密模拟电路与传感器供电(ADC、放大器等)
  • 工业控制与嵌入式系统的 3.3V 子系统

五、封装与选型提示

  • 封装型号:SOT-23-5(PDB 封装)
  • 适用于空间受限、需要低功耗与良好噪声抑制的设计
  • 选型时关注工作温度范围(-40℃ ~ +125℃)、输入电压裕量与系统最大功耗,必要时考虑更大封装或外部散热措施

总结:TLV77333PDBVR 以其低压差、高 PSRR、全面的保护功能以及小尺寸封装,适合对噪声、效率与可靠性有要求的 3.3V 电源设计。最终电路选型与电容、版图及散热设计建议参照 TI 官方数据手册与评估板资料以获得最佳性能。

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