WMSIC Electronic Components

HOLTEK HT7580-1 HT7580

ModelHT7580-1
PackageSOT-89-3
BrandHOLTEK
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HOLTEK(Holtek / Holtek) HT7580-1
Type
HOLTEK
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
25mV@(1mA)
Electronic Component
HOLTEK(Holtek / Holtek)
Electronic Component
HT7580-1
Electronic Component
1
Package
SOT-89-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.041g
Electronic Component
1
Electronic Component
BM0258475924
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
30V
Output
Electronic Component
Output Voltage
8V
Output Current
150mA
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.

HT7580-1 产品概述

一、产品简介

HT7580-1 是合泰(HOLTEK)推出的一款固定输出线性稳压器(LDO),采用紧凑的 SOT-89-3 封装,面向对低静态电流与稳定输出有要求的便携与低功耗电路。该器件支持最高 30V 工作电压,提供稳定的 8.0V 正极固定输出,最大输出电流 150mA,适合做小功率电源调节与后级滤波稳压器。

二、主要规格

  • 输出类型:固定(8.0V)
  • 最大工作电压:30V
  • 最大输出电流:150mA
  • 压差(dropout):25mV @ 1mA(轻载时非常小)
  • 静态电流(Iq):约 2.5µA(极低静态功耗)
  • 工作温度范围:-40℃ ~ +85℃(Ta)
  • 输出极性:正极
  • 输出通道数:1
  • 封装形式:SOT-89-3
  • 品牌:HOLTEK(台湾合泰/盛群)
  • 型号:HT7580-1

三、核心特点与优势

  • 极低静态电流(2.5µA):非常适合电池供电或长待机场合,能显著降低待机耗电。
  • 轻载时超低压差:25mV(1mA)在小电流工况下有利于提升效率,尤其适合传感器与模拟前端的供电。
  • 宽输入电压范围(最高 30V):适配多种电源环境,能够直接工作于较高输入电压场合(注意功耗管理)。
  • 紧凑封装(SOT-89-3):体积小,便于空间受限的电路板布局。
  • 单通道固定输出:简化设计与布线,适合需要确定参考电压或固定供电轨的场景。

四、典型应用

  • 电池供电的便携设备与采集模块(传感器、数据记录器、遥测节点)
  • 低功耗物联网与无线节点的辅助稳压
  • 模拟电路的参考电压源与后端滤波稳压
  • 工业控制小功率模块、仪表与显示电路
  • 小功率 LED 驱动或外围电源(须满足功耗与热管理)

五、使用与设计注意事项

  • 功耗与热设计:线性稳压器的功耗等于 (Vin - Vout) × Iout。举例:若 Vin = 30V、Vout = 8V、Iout = 150mA,则损耗约 3.3W,此功耗远超 SOT-89-3 的散热能力,可能导致过热或进入热关断。建议:
    • 尽量将输入电压控制在接近输出电压的范围;或在高压差工况下使用前级开关降压器(DC-DC)以减小热耗。
    • 在 PCB 上使用足够的铜箔散热(热沉铜垫)并优化走线散热路径。
  • 输出与输入旁路电容:为保证稳定与瞬态响应,应在输入和输出侧放置去耦电容。常规做法是将低 ESR 的陶瓷电容靠近引脚放置(典型范围 1µF~10µF,视系统要求而定)。具体容值与 ESR 要求请参照器件完整数据手册。
  • 启动与瞬态响应:在负载突变时,HT7580-1 的瞬态恢复性能受外部电容与布局影响。对严格的瞬态要求,应合理选择输出电容并优化封装线路。
  • 封装与焊接:SOT-89-3 体积小,焊接时注意热应力;推荐按厂方焊接工艺与回流曲线处理。

六、选型建议与备注

HT7580-1 适合注重低静态电流、轻载高效率与体积受限的设计场景。在需要持续大电流输出或输入输出电压差较大时,应综合考虑热耗并优先选择具有更好散热能力的封装或采用开关稳压方案配合 LDO 作为后端滤波。如果需了解器件引脚定义、典型电路、详细电气特性与 PCB 布局建议,请参阅 HT7580-1 完整数据手册或联系供应商获取样片与评估资料。

如需针对具体工况的散热计算、外部元件建议或替代器件比较,可提供电源输入电压、最大负载与空间约束,我可以给出更详细的设计建议。

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