WMSIC Electronic Components

BELLING BL8531CB5TR50

ModelBL8531CB5TR50
PackageSOT-23-5
BrandBELLING
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BELLING BL8531CB5TR50
Type
BELLING
Minimum package
3000 卷

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BELLING
Electronic Component
BL8531CB5TR50
Electronic Component
1
Package
SOT-23-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.05g
Electronic Component
1
Features
Dynamic Voltage
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264534360
Operating Temperature
40℃~+85℃@(TA)
Operating Voltage
800mV~5V
Switching Frequency
350kHz
Electronic Component
Electronic Component

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

BL8531CB5TR50 产品概述

一、产品简介

BL8531CB5TR50 是贝岭(BELLING)推出的一款升压型 DC-DC 转换器,采用 SOT-23-5 小封装,专为低电压电源系统提供稳定的 5V 输出而设计。器件集成了开关管,支持从极低输入电压(800mV)启动并工作,开关频率为 350kHz,最大输出电流可达 200mA,静态电流仅 4µA,适合体积受限、对待机功耗要求高的便携和电池供电场景。

二、主要规格

  • 功能类型:升压型(Boost)
  • 输入电压范围:0.8V ~ 5V
  • 输出电压:5V(器件为可调输出类型,可通过外部电阻分压配置)
  • 输出电流:最大 200mA
  • 开关频率:350kHz
  • 同步整流:否(采用非同步整流方案)
  • 开关管:内置开关管
  • 输出通道数:1 路
  • 静态电流(Iq):4µA(典型)
  • 工作温度范围:-40℃ ~ +85℃(TA)
  • 封装:SOT-23-5

三、主要特点与优势

  • 低起始电压:最小 0.8V 启动,便于从单一低电压电源(如弱电池、单节电池组)启动系统。
  • 低静态电流:4µA 的低静态电流非常适合待机或长期供电的便携设备,延长电池寿命。
  • 集成功率开关:内置开关管简化外围器件布局与设计,减少 PCB 面积。
  • 适度频率:350kHz 的开关频率在效率与外部元件尺寸之间取得平衡,便于使用常规电感与电容。
  • 可调输出:通过外部反馈电阻可对输出电压进行精确设定,支持多种设计需求。

四、典型应用场景

  • 便携式电子设备:如蓝牙音箱、手持测量仪器、便携式传感器节点。
  • 低功耗传感与 IoT 节点:适合需长时间待机又偶发发送的无线传感器。
  • 小型充电与电源辅助模块:为 MCU、传感器或外围电路提供稳定 5V 电压。
  • 工业与消费类电子的小功率升压场合。

五、应用设计要点

  • 非同步整流:器件为非同步整流方案,需要在输出端配置低压降肖特基二极管以降低整流损耗并提升效率。
  • 外围元件选择:建议使用低 ESR 的陶瓷电容作输入/输出电容;电感选择应考虑 350kHz 的工作频率与输出纹波要求,常见取值可在几 µH 到几十 µH 区间,根据实际电流与效率权衡。
  • 功率与热设计:最大输出 200mA 时器件会产生一定损耗,应关注 PCB 散热、焊盘铜厚和布局,保证工作温度在 -40℃~+85℃ 范围内。
  • 布线与布局:将输入电容、开关结点电感与肖特基二极管尽量靠近器件,减少环路面积以降低 EMI 与开关噪声。
  • 动态电压调节:若需快速响应负载变化,注意反馈网络与补偿设计,确保系统稳定并满足瞬态响应要求。

六、封装与采购信息

  • 品牌:BELLING(贝岭)
  • 封装:SOT-23-5,适合小尺寸 PCB 设计与自动贴装生产。
  • 型号:BL8531CB5TR50(标准管脚定义与封装资料请参考厂商数据手册)
  • 注意事项:在批量设计前建议获取并参照完整数据手册与典型参考电路,进行样机验证以确认效率、温升与稳态/瞬态性能满足产品要求。

总结:BL8531CB5TR50 以其低启动电压、极低静态电流和集成开关管的特点,适合对体积、功耗敏感的小功率升压应用。良好的外部元件选择与 PCB 布局将直接影响系统效率与稳定性,设计时应结合厂商典型电路进行优化。

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