WMSIC Electronic Components

ADI/LINEAR LT1933ES6#TRPBF LT1933ES6

ModelLT1933ES6#TRPBF
PackageTSOT-23-6
BrandADI/LINEAR
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
ADI(Analog Devices) / LINEAR LT1933ES6#TRPBF
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
LT1933ES6#TRPBF
Electronic Component
1
Package
TSOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.021g
Electronic Component
1
Features
Load
Type
Electronic Component
Electronic Component
BM0258859730
Operating Temperature
40℃~+85℃
Operating Voltage
3.6V~36V
Switching Frequency
500kHz
Electronic Component
Electronic Component
Output Voltage
1.245V~33.84V

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

LT1933ES6#TRPBF 产品概述

一、产品简介

LT1933ES6#TRPBF(ADI/Linear)是一款高集成度降压型(Buck)DC-DC开关稳压器,采用小型TSOT-23-6封装,适用于空间受限的便携与工业电子系统。器件集成开关管,工作开关频率约500kHz,输入电压范围宽(3.6V~36V),输出电压可调(1.245V~33.84V),最大输出电流可达600mA,工作温度范围-40℃~+85℃,是一款面向中小功率降压转换的通用方案器件。

二、主要特性

  • 输入电压:3.6V ~ 36V,适配单节锂电至车载和工业电源
  • 输出电压:可调,1.245V ~ 33.84V
  • 最大输出电流:600mA(受散热、外部元件与工作条件影响)
  • 开关频率:典型值 500kHz,便于使用小型电感与电容
  • 拓扑结构:非隔离降压(Buck),开关管内置
  • 封装:TSOT-23-6,单输出通道
  • 工作温度:-40℃ ~ +85℃
  • 高效率(视输入/输出差与负载而定,通常可达到80% 以上)
  • 可通过外部反馈电阻设定输出电压,具有软启动、过流/过温保护(视版本与实现)

三、典型应用场景

  • 便携式/手持设备电源(从单节或多节电池降压)
  • 工业与仪器仪表供电(12V/24V母线降压)
  • 通信设备、嵌入式系统和单板计算平台
  • 车载电子(应注意符合车规级要求与瞬态抑制)
  • 点亮传感器、ADC/DAC及低压逻辑电路的局部稳压源

四、器件优势与设计要点

  • 小尺寸:TSOT-23-6封装适合PCB空间受限的应用,降低系统体积
  • 宽输入:高输入耐压使器件能直接连接至常见车载或工业电源
  • 可调输出:通过外部反馈网络灵活设定输出电压,方便设计多种电压轨
  • 设计要点(建议):
    • 输入侧使用低ESR陶瓷电容(如10µF,X5R/X7R)以抑制输入纹波与瞬态
    • 输出侧采用低ESR陶瓷/固态电容组合(10µF~47µF,视负载与稳定性需求)
    • 电感根据开关频率与输出电流选型,常见范围从2.2µH到10µH(负载与纹波决定最佳值)
    • 若并非同步拓扑,需选用低VF、快速恢复的肖特基二极管;若是同步实现,则外部器件不同
    • 合理布板:将高电流回路(输入电容、开关节点、电感、输出电容)最小化环路面积,确保散热良好
    • 热管理:TSOT-23-6尺寸小,需充分利用PCB铜箔散热并避免持续满载下工作在高温区域

五、外部元件与示意(参考)

  • 输入电容:10µF 陶瓷(X7R/X5R),并视需求并联更大容量的去耦电容
  • 输出电容:10~47µF 陶瓷(低ESR),必要时并联低漏电或固态电容以稳定
  • 电感:根据输出电流与纹波目标选择 2.2µH~10µH
  • 整流/续流:若器件非同步拓扑,采用1A 低VF肖特基二极管
  • 反馈阻值:以器件参考电压(约1.245V)计算分压网络以设定所需输出电压

(注:具体外部元件取值应参照器件数据手册与目标效率、纹波要求,并结合仿真与样机测试)

六、封装与热性能

TSOT-23-6为小型表贴封装,适合自动化贴装。由于开关元件与控制电路高度集成,器件在高功率输出场景下对PCB散热依赖较大。建议在器件下方或周围布局足够的散热铜箔,并采用多层板或热过孔引导热量至内部平面,必要时降低器件工作温度或降低平均输出电流以保证可靠性。

七、使用建议与注意事项

  • 在高输入电压(接近36V)与高负载时,关注器件功耗与发热,必要时使用更大电感或分流热量
  • 开发时务必在评估板或参考设计上验证稳定性、瞬态响应与温升
  • 若用于车载或工业强干扰环境,增加输入滤波与浪涌抑制元件(如TVS)以提高可靠性
  • 按照规范选型反馈电阻与补偿元件,避免因外部网络导致振荡或失稳

八、订购信息与支持

器件型号:LT1933ES6#TRPBF(ADI/Linear,TSOT-23-6 封装)。采购前请核对完整型号、包装(卷带/卷盘)与器件版本,并参考官方数据手册获取详细电气特性、引脚定义和布局图。对于高可靠性应用,建议联系代理商或厂商获取应用指导与评估板支持。

如需针对具体输入/输出电压、负载条件的参考电路、元件选型表或PCB布局建议,可提供目标工况(Vin、Vout、Iout、工作环境),以便给出更精确的设计建议。

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