WMSIC Electronic Components

TWGMC HT7533 LDO Regulator HT7533

ModelHT7533
PackageSOT-23
BrandTWGMC
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TWGMC HT7533
Type
SOT-23
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
100mV@(1mA)
Electronic Component
TWGMC
Electronic Component
HT7533
Electronic Component
1
Package
SOT-23
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0225962259
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
24V
Output
Electronic Component
Output Voltage
3.3V
Output Current
100mA
Output Type
Electronic Component

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

HT7533(SOT-23-3)产品概述

一、概述

HT7533 是一款固定输出、正极性低压差线性稳压器(LDO),由 TWGMC(台湾迪嘉)供应,封装为常用的 SOT-23-3。该器件针对低功耗系统设计,静态电流极低,适合电池供电与便携式设备。输出电压为固定 3.3V,单通道输出,最高可提供 100mA 的输出电流。

二、主要参数(基准)

  • 输出类型:固定(3.3V)
  • 输出极性:正极
  • 工作电压(最大输入参考):24V
  • 输出电流:100mA(典型稳态负载能力)
  • 静态电流(Iq):2.5μA(静态/待机条件下)
  • 压差:100mV @ 1mA(在 1mA 负载下典型压差)
  • 工作温度范围:-40℃ ~ +85℃(Ta)
  • 输出通道数:1
  • 封装:SOT-23-3

三、特点与优势

  • 超低静态电流(≈2.5μA),非常适合对待机功耗敏感的电池供电与物联网终端;
  • 低压差特性,在轻载时压差仅约 100mV,有利于提升电源效率并延长电池寿命;
  • 小封装(SOT-23)便于空间受限的产品应用与自动化贴片生产;
  • 固定 3.3V 输出,方便为 MCU、传感器、射频模块等常见子系统供电。

四、典型应用场景

  • 便携式及电池供电设备(手持仪器、遥控器、传感器节点);
  • 物联网与无线模块(低功耗 MCU、BLE/LoRa 节点);
  • 工业控制与测量采集模块(3.3V 为常见数字电压域);
  • 电源管理与备用参考源(当负载在 100mA 以内且需低待机耗电时)。

五、使用建议与注意事项

  • 输入/输出旁路电容:为确保稳压器稳定与抑制瞬态,建议在输入端和输出端放置低 ESR 陶瓷电容(常见 1µF ~ 10µF),并将电容器尽量靠近器件引脚布局。具体电容值与 ESR 要求请参考完整数据手册。
  • 散热与功耗评估:线性稳压器的功耗等于 (Vin - Vout) × Iout。当 Vin 接近最大 24V 且输出接近 100mA 时,功耗和结温上升会很显著(例如 Vin=24V,Iout=100mA 时 Pd ≈ 2.07W),SOT-23 封装散热能力有限,需评估环境温度并采用必要的降压或散热措施以防过温关断或热失效。
  • 压差随负载增加而上升:已知压差 100mV 是在 1mA 条件下的典型值,高电流工况下压差会显著增加,请用数据手册的压差-电流曲线确认在目标工作电流下的 Vin 最小要求。
  • 保护与可靠性:若设计需强制的短路保护、热关断或高精度的负载/线性调整率指标,请查阅器件数据手册确认是否内置保护功能,或在系统中增加必要的保护电路。

六、选型与资料获取

选择 HT7533 时,应结合系统的输入电压范围、最大负载电流、热环境与输出精度要求。如需最终设计验证,请下载并阅读 TWGMC(台湾迪嘉)提供的完整数据手册与典型应用电路,以获取压差随电流变化、纹波抑制(PSRR)、输出噪声、启动特性、保护功能和推荐外部元件规范等详细参数。

总结:HT7533 是面向低功耗、空间受限应用的单通道 3.3V LDO,凭借超低静态电流与小封装,适用于多种便携与嵌入式场景;但在高差压大电流情况下需注意功耗与散热。

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