WMSIC Electronic Components

TI TLV77033PDBVR

ModelTLV77033PDBVR
PackageSOT-23(DBV)|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 24+

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Technical data

Product details

19 specifications

Core information

Product name
TI(Texas Instruments) TLV77033PDBVR
Type
TI
Minimum package
3000

Technical parameters

Electronic Component
CUT TAPE
Electronic Component
45mV@(50mA)
Electronic Component
TI(Texas Instruments)
Electronic Component
50uVrms
Electronic Component
TLV77033PDBVR
Electronic Component
1
Package
SOT-23(DBV)|5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.033g
Electronic Component
1
Features
Output; Built-in
Electronic Component
BM0263519272
Operating Temperature
40℃~+125℃
Operating Voltage
5.5V
Output Voltage
3.3V
Output Current
50mA

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

TLV77033PDBVR 50mA高PSRR低压差线性稳压器产品概述

一、核心电气参数概览

TLV77033PDBVR是德州仪器(TI)推出的固定输出型低压差线性稳压器(LDO),核心参数精准匹配低功耗、噪声敏感场景的供电需求:

  • 输出特性:固定输出电压3.3V,持续输出电流能力50mA;
  • 输入范围:最大工作电压5.5V(适配5V电源或电池供电);
  • 纹波抑制:1MHz频段下PSRR达55dB,有效过滤高频噪声;
  • 压差性能:满负载(50mA)时仅45mV,输入电压接近输出时仍稳定;
  • 功耗控制:典型静态电流80μA,低功耗设计适配电池设备;
  • 噪声水平:输出噪声50μVrms,满足精密模拟电路要求。

二、关键特性与应用优势

1. 高PSRR抑制高频噪声

1MHz下55dB的电源纹波抑制比,可有效过滤电源中的高频干扰(如开关电源纹波、射频噪声),尤其适合射频前端、音频电路、传感器调理等对电源纯净度要求高的场景,避免噪声影响信号质量。

2. 低压差扩展输入范围

满负载下仅45mV的压差,当输入电压仅比输出高0.1V左右时仍能稳定稳压——比如电池电量衰减至3.4V时,仍可输出3.3V,适配电池供电设备的电压波动场景。

3. 低静态电流延长续航

80μA的典型静态电流远低于普通LDO,在智能手环、蓝牙耳机、IoT节点等电池供电设备中,可显著延长待机时间(相比传统LDO,待机电流降低约50%)。

4. 内置保护提升可靠性

  • 软启动:上电时缓慢提升输出电压,抑制浪涌电流(最大浪涌电流降低60%),避免冲击前级电源或后级电路;
  • 热关断:芯片温度超过150℃时自动切断输出,温度回落至安全范围后恢复,防止过温损坏。

5. 低噪声适配精密电路

50μVrms的输出噪声水平,可满足医疗传感器、音频前置放大、精密测量仪器等场景的供电需求,避免噪声干扰信号采集精度。

三、典型应用场景

TLV77033PDBVR的参数特性使其适配多种低功耗、高密度场景:

  1. 便携式消费电子:智能手环、蓝牙耳机、智能手表的辅助供电(如传感器、蓝牙模块供电);
  2. 精密模拟电路:温度/压力传感器的信号调理、音频耳机放大器的前置供电;
  3. 射频前端:蓝牙5.0、WiFi 6E的低噪声放大器(LNA)供电;
  4. 工业物联网:工业传感器节点、小型PLC的辅助供电(宽温适配-40℃~+125℃);
  5. 电池供电系统:低功耗IoT节点、可穿戴设备的核心供电(低静态电流延长电池寿命)。

四、封装与尺寸设计

采用SOT-23(DBV)5引脚封装,尺寸紧凑(2.9mm×1.6mm×1.0mm),适合空间受限的PCB布局——比如智能手环的高密度主板、IoT节点的小型化设计,可降低系统整体体积。

五、环境适应性与可靠性

  1. 宽温范围:工作温度覆盖-40℃至+125℃,符合工业级温度要求,可在极端环境(如户外传感器、车载电子)下稳定工作;
  2. 抗干扰性:高PSRR配合低噪声,可在电磁干扰较强的场景(如工业现场、射频环境)中保持输出稳定。

TLV77033PDBVR以“高PSRR、低压差、低静态电流”为核心优势,精准覆盖低功耗、噪声敏感的供电场景,是便携式设备、精密电路、工业IoT的理想稳压方案。

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