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LOWPOWER LP6220ASPF
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
15
specifications
Core information
- Product name
- LOWPOWER LP6220ASPF
- Type
- LOWPOWER
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LOWPOWER
- Electronic Component
- LP6220ASPF
- Electronic Component
- 1
- Package
- ESOP-8
- Electronic Component
- Specialized Power Management(PMIC)
- Electronic Component
- 0.144g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0230633633
- Electronic Component
- Electronic Component
- Electronic Component
- 4000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LP6220ASPF 产品概述
一、概述
LP6220ASPF 是 LOWPOWER（微源半导体）面向卫星接收器与卫星电视天线系统的可调电压稳压器解决方案。器件集成了一个带内置功率MOS的升压转换器和一个低压差线性稳压器（LDO），可为低噪声块（LNB）或多路开关提供 14V / 19V 电源，并能叠加干净的 22kHz 音调信号以支持天线切换功能。
二、主要功能特性
- 支持 14V/19V 可调输出，适配 LNB 驱动需求；
- 内置升压转换器，开关频率 1MHz，提升效率与尺寸优化；
- LDO 采用推挽输出级设计，能在零负载下输出稳定且低噪声的 22kHz 音调；
- EXTM 引脚用于接收 DiSEqC 数字控制并对称传输输出，符合 DiSEqC 1.x 协议要求；
- 内置过流保护（OCP），增强系统可靠性和短路防护能力；
- 封装：ESOP-8，利于空间受限的卫星天线模块设计。
三、典型应用场景
适用于模拟/数字卫星接收器、卫星电视 LNB 电源模块、多路开关盒（multiswitch）、天线供电与信号控制等需要 14/19V 电源与 22kHz 切换信号的应用。
四、关键技术说明
- 升压转换器：内部功率 MOSFET 提供高集成度，1MHz 开关频率有利于使用更小电感与电容，降低外部元件尺寸。
- LDO 稳压器：推挽输出在空载或轻载时仍能保持对 22kHz 音调的低失真叠加，保证切换信号清晰传输。
- DiSEqC 支持：EXTM 引脚实现对 DiSEqC 命令的对称传输，便于上位机控制天线切换与多路管理。
- 保护功能：集成过流保护，防止负载或短路造成器件与外部模块损坏，提高系统安全性。
五、设计与布局建议
- 升压侧输入与输出电容应尽量靠近芯片引脚布置以减少寄生与环路噪声；
- 选择适配的电感与肖特基/同步整流器以匹配目标输出电流与效率；
- 22kHz 音调路径应考虑滤波与阻抗匹配，避免被开关噪声淹没；
- 在高温或连续大电流工况下注意散热与热保护设计，ESOP‑8 封装需良好散热铺铜。
六、总结
LP6220ASPF 为卫星天线系统提供了一款集成度高、支持 DiSEqC 控制且具备过流保护的电源管理器件。其 1MHz 升压设计与 LDO 推挽输出在尺寸、噪声与功能上进行了平衡，是 LNB 驱动与多路开关电源设计的实用选择。若需原理图参考或外部元件选型建议，可根据具体输入电压与负载要求进一步细化设计方案。
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