WMSIC Electronic Components

LOWPOWER LP3310B6F

ModelLP3310B6F
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LOWPOWER LP3310B6F
Type
LOWPOWER
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LP3310B6F
Electronic Component
1
Package
SOT-23-6
Electronic Component
LEDDriver
Electronic Component
PWM; Analog
Electronic Component
0.024g
Electronic Component
1
Channel Count
1
Features
(OVP); Built-in; (OTP)
Electronic Component
BM0227545500
Operating Temperature
40℃~+85℃
Switching Frequency
1MHz
Electronic Component
Electronic Component
Output Voltage
0V~28V

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

LP3310B6F 产品概述

LP3310B6F 是 LOWPOWER(微源半导体)推出的一款高集成升压型 DC-DC 转换器,采用 SOT-23-6 小封装,集成开关管,支持宽输入电压范围并具备多重保护功能,适用于电池供电与车载等受限空间的升压场合。

一、主要特性

  • 拓扑:升压(Boost)类型,内置开关管,简化外部器件数量。
  • 工作电压(DC):2.7V ~ 24V,适配单节至多节电池或车载点烟器等电源。
  • 输出电压:可调 0V ~ 28V,灵活驱动多种负载。
  • 开关频率:约 1MHz,便于选用小体积电感与陶瓷电容,减小 PCB 面积。
  • 调光支持:PWM 调光与模拟调光,适合 LED 驱动和亮度控制应用。
  • 保护功能:过压保护(OVP)、欠压保护(UVP)、过温保护(OTP),提高系统可靠性。
  • 工作温度:-40℃ ~ +85℃,满足工业级温度要求。
  • 封装:SOT-23-6,便于小型化产品设计。

二、典型应用场景

  • 手持设备、便携式仪表的升压电源。
  • LED 背光、照明驱动(需配合外部恒流电路或LED电流检测)。
  • 汽车电子(12V 升压至更高电压)与车载附件。
  • 供电需要从单节电池升压到较高电压的传感器与模块。

三、设计要点与外部器件建议

  • 电感:由于 fSW ≈ 1MHz,可选小体积电感(几百 nH 到几 μH)。按连续导通模式估算:L ≈ (Vin*(Vout−Vin))/(ΔIL * fSW * Vout),推荐电流纹波 ΔIL 取占峰值电流的 20%~40%。
  • 二极管:若为非同步拓扑,建议选用低正向压降、高速肖特基二极管以降低损耗。
  • 输出电容:优先使用低 ESR 陶瓷电容(X5R/X7R),以保证稳定性与输出纹波。
  • 布局:开关节点(SW)回路应尽量短且走宽铜,输入电容靠近 VIN 和 GND 引脚;地回路集中,避免把敏感信号线穿过开关回路。SOT-23-6 散热能力有限,需考虑铜箔面积以帮助散热。
  • 调光接口:PWM 调光时应保证 PWM 频率远高于可见闪烁阈值,并考虑滤波以避免在负载端产生干扰;模拟调光通常通过调整参考电压或反馈环路实现。

四、保护与可靠性

LP3310B6F 集成 OVP、UVP 与 OTP,可在输入欠压、输出短路或芯片过热时自动保护系统。为保证长期可靠性,设计时应考虑热沉与良好通风,并在器件允许的最大功率范围内工作。

五、选型建议与注意事项

  • 输入电压边界(2.7V–24V)内工作,超过此范围会引起功能异常或损坏。
  • 输出电压最高可达 28V,但受外部组件(电感、二极管、输出电容)和热管理限制,应按照系统仿真与实际测量确认效率与温升。
  • SOT-23-6 封装利于小型化,但散热与可持续输出功率受封装限制,功率较大应用需注意降额设计。

六、总结

LP3310B6F 是一款面向小型升压应用的高集成方案,宽输入电压、可达 28V 的输出与 PWM/模拟调光能力,使其适合便携、汽车与照明类产品。良好的开关频率和多重保护功能,结合合理的外部器件选择与 PCB 布局,可在尺寸受限环境下实现高效、可靠的升压设计。若需详细原理图或典型应用电路,请提供目标输入/输出条件与负载规格以便给出更具体的参考设计。

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