WMSIC Electronic Components

LOWPOWER(微源半导体) LP6252B6F

ModelLP6252B6F
PackageSOT-23-6
BrandLOWPOWER
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
LOWPOWER LP6252B6F
Type
LOWPOWER
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LP6252B6F
Electronic Component
1
Package
SOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.023g
Electronic Component
1
Features
Output; Load
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0229970641
Operating Temperature
40℃~+85℃@(TA)
Operating Voltage
2.5V~5.5V
Switching Frequency
1MHz
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.

LP6252B6F 升压型开关稳压器产品概述

一、产品简介

LP6252B6F 是微源半导体(LOWPOWER)推出的一款高集成度升压型开关稳压器,采用升压拓扑并内置功率开关和同步整流,工作电压范围宽(2.5V~5.5V),输出可调(2.5V~5.4V),最高持续输出电流可达3A,开关频率典型为1MHz,工作环境温度为-40℃~+85℃(TA)。器件采用 SOT-23-6 小封装,适合空间受限且要求高效率、高输出电流的便携式与嵌入式电源应用。

二、主要特性

  • 输入电压:2.5V ~ 5.5V
  • 输出电压可调:2.5V ~ 5.4V
  • 最大输出电流:3A(受外围元件与散热条件限制)
  • 内置高侧/低侧开关,支持同步整流,提高效率、降低发热
  • 固定开关频率:1MHz(利于减小外部电感和电容尺寸)
  • 小尺寸封装:SOT-23-6,便于贴片自动化生产
  • 工作温度:-40℃ ~ +85℃(TA)
  • 典型保护与功能:启动/关断控制(EN),软启动,过流保护,热关断,欠压锁定(具体参数请参见规格书)

三、典型应用场景

  • 移动电源与便携式充电器
  • 单节锂电池升压至5V供电(例如USB供电)
  • 车载小型电子设备、便携式通讯终端
  • 可穿戴设备、蓝牙音箱及便携式照明
  • 需要高密度、低成本升压解决方案的工业与消费类电子产品

四、外部元件建议与典型电路要点

  • 开关频率1MHz,建议选用低DCR、高饱和电流的功率电感,典型范围为1µH ~ 4.7µH(依据输入/输出电流与纹波要求调整)。
  • 输出电容建议使用多层陶瓷电容(X5R/X7R),Cout 常见取 22µF ~ 47µF,低ESR 有助于降低输出纹波并稳定环路;输入侧 Cin 建议至少 10µF。
  • 由于为同步整流结构,无须外接肖特基二极管,但需根据布局优化 SW 节点走线,减小寄生电感。
  • 典型引脚功能(以最终规格书为准):VIN(供电)、GND、EN(使能)、FB(反馈)、SW(开关节点)、BST(自举或其它功能)。请以官方引脚图为准设计 PCB。

五、布局与热管理建议

  • 将 VIN 与 GND 的大旁路电容靠近芯片引脚放置,最短走线连接。
  • SW 节点走线尽量短且远离敏感模拟信号,减少电磁干扰(EMI)。
  • 利用大面积铜箔局部散热,SOT-23-6 封装热阻较大,高输出电流时需评估温升并考虑外加散热面或将热流引至地平面。
  • 在布局阶段仿真或测量器件温度及效率,确保在最差工况下仍满足可靠性要求。

六、保护与可靠性

LP6252B6F 通常集成多项保护功能以提高系统可靠性:过流限制、短路保护、热关断、欠压锁定及软启动以限制启动浪涌。设计时应参考规格书提供的保护阈值和响应特性,配合合适外围元件实现可靠工作。

七、选型与封装

  • 品牌:LOWPOWER(微源半导体)
  • 封装:SOT-23-6,适合空间受限的高密度 PCB 设计
  • 选型提示:依据输入电压范围、所需输出功率与热条件确认器件是否能在目标工况下稳定输出 3A,如需更高输出或更佳散热,请考虑更大封装或并联方案。

总结:LP6252B6F 在体积、集成度与效率之间实现平衡,适合对体积与效率有较高要求的单节升压应用。在实际设计中,请严格参照官方数据手册中的典型电路、元件选择和热特性参数,以获得最佳性能。

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