WMSIC Electronic Components

ST LD59030DTPU33R

ModelLD59030DTPU33R
PackageDFN-4(1x1)
BrandST
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+

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Technical data

Product details

19 specifications

Core information

Product name
ST(STMicroelectronics) LD59030DTPU33R
Type
ST
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
200mV@(300mA)
Electronic Component
ST(STMicroelectronics)
Electronic Component
70uVrms
Electronic Component
LD59030DTPU33R
Electronic Component
1
Package
DFN-4(1x1)
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.017g
Electronic Component
1
Features
Built-in; Output
Electronic Component
BM0058409358
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
3.3V

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

LD59030DTPU33R 3.3V固定输出LDO线性稳压器产品概述

一、产品定位与基本属性

LD59030DTPU33R是意法半导体(ST)推出的一款固定输出3.3V线性稳压器(LDO),属于小封装、低功耗、高可靠性的电源管理器件,专为空间受限、对电源稳定性要求较高的场景设计。该器件为单通道正极性输出,采用超小型DFN4(1×1mm)表贴封装,符合SMD(表面贴装)工艺要求,可直接集成于高密度PCB布局中。

二、核心电气参数详解

该LDO的核心参数覆盖电源性能关键维度,具体如下:

  • 输入输出特性:最大输入电压5.5V,固定输出电压3.3V,最大输出电流300mA;满载(300mA)条件下压差仅200mV(输入电压仅需比输出高200mV即可稳定输出),适配低电压输入场景。
  • 功耗与噪声:静态电流(Iq)低至28μA,显著降低待机功耗,适合电池供电设备;输出噪声70μVrms,对音频、射频等敏感电路干扰极小。
  • 纹波抑制:电源纹波抑制比(PSRR)达75dB@1kHz,可有效抑制输入电源的高频纹波,输出电压稳定性高。
  • 温度范围:工作结温覆盖-40℃~+125℃,符合工业级温度要求,可在极端环境下稳定运行。

三、关键功能特性

LD59030DTPU33R集成多项实用保护与控制功能,提升系统可靠性:

  1. 过热保护:结温超阈值时自动关断输出,防止器件过热损坏,延长使用寿命;
  2. 使能控制:支持外部信号开启/关闭输出,拉低使能引脚可进入低功耗模式,进一步降低待机电流;
  3. 软启动:上电时缓慢提升输出电压,避免浪涌电流冲击负载,保护敏感元器件;
  4. 固定输出精度:输出电压无额外漂移,适配稳定输入场景的精度需求。

四、封装与典型应用场景

4.1 封装特点

采用DFN4(1×1mm)封装,尺寸超小(比常规SOT-23封装小约70%),引脚间距紧凑,大幅节省PCB空间;封装散热性能良好,可支撑结温范围内的稳定工作。

4.2 典型应用

该器件性能适配多类场景:

  • 便携电子:智能手环、蓝牙耳机、智能手表等可穿戴设备(低功耗+小封装);
  • 工业控制:传感器模块、PLC辅助电源、工业IoT终端(宽温+高可靠性);
  • 汽车电子:车载小负载电源(如仪表盘传感器、胎压监测模块,-40℃~125℃宽温);
  • 消费电子:小型IoT设备、便携式医疗设备(低噪声+稳定输出)。

五、性能优势总结

LD59030DTPU33R的核心优势可归纳为:

  • 小封装高密度:1×1mm DFN封装,适配高密度PCB集成;
  • 低功耗长续航:28μA静态电流,提升电池供电设备续航;
  • 宽温高可靠:-40℃~125℃结温,满足工业/汽车级环境需求;
  • 低噪稳输出:70μVrms噪声+75dB@1kHz PSRR,适合敏感电路;
  • 集成保护功能:过热保护、软启动、使能控制,简化系统设计。

该器件凭借上述特性,成为小负载、低功耗、高可靠性电源设计的优选方案,可快速适配各类终端产品的电源管理需求。

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