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XLSEMI XL1509A-12E1 XL1509A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- XLSEMI XL1509A-12E1
- Type
- XLSEMI
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- XLSEMI
- Electronic Component
- XL1509A-12E1
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.131g
- Electronic Component
- 1
- Features
- Electronic Component
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0264549858
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 4.5V~50V
- Switching Frequency
- 150kHz
- 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.
XL1509A-12E1 产品概述
XL1509A-12E1 是芯龙（XLSEMI）推出的一款高压降压型 DC-DC 开关稳压器，面向工业级与车载及通信等需宽输入、高效率、紧凑布局的供电场合。芯片集成了功率开关管与环路补偿模块，恒定开关频率 150kHz，固定输出 12V，最大输出电流 2A，输入电压范围 4.5V～50V，支持最大占空比 100%，工作温度范围 -40℃～+125℃，封装为 SOP-8。
一 主要特性
- 宽输入电压：4.5V ～ 50V，适应多种电源场景（汽车、工业电源、变电电源等）。
- 固定输出：12V，输出通道数：1，适合标准 12V 负载。
- 输出能力：最大 2A 连续输出。
- 开关频率：恒定 150kHz，便于电感与滤波器选型。
- 内置开关管：降低外部器件数量与布局复杂度。
- 环路补偿：芯片内置补偿网络，简化外部元件；支持 100% 占空比输出以满足低压差需求。
- 保护功能：具备过流保护 (OCP)，提高系统可靠性。
- 低静态电流：Iq ≈ 1.3mA，有利于待机功耗控制（非同步整流，需外部整流二极管）。
二 应用场景
- 汽车车载电子（经稳压后驱动 12V 外设）
- 工业控制电源、通信设备电源模块
- 电池供电系统及宽压输入的嵌入式系统
- 各类需要紧凑 PCB 布局的开关电源解决方案
三 外围元件建议（典型）
- 输入电容：建议 10µF～47µF 低 ESR 电解/固态电容 + 0.1µF 陶瓷并联，耐压 ≥ 输入最大电压。
- 输出电容：建议 47µF～220µF 低 ESR 铝电解或固态电容 + 1µF～4.7µF 陶瓷并联，用以降低输出纹波与瞬态响应。
- 电感：建议 33µH～100µH，饱和电流 >2.5A（根据输入电压与允许电流纹波选择）。高输入电压场合需适当增大电感以控制电流纹波。
- 整流二极管（非同步）：选用低正向压降、耐压 ≥ 60V 的肖特基二极管（例如 3A 级别器件），以降低整流损耗。
- PCB 与走线：开关节点（SW）与二极管、输出电感间走线尽量短，输入电容靠近 VIN 引脚布局，增强散热与电磁兼容性能。
四 设计与热管理要点
- 由于为非同步整流方案，整流二极管功耗会影响整体效率，高电流工作时选用低 Vf 的肖特基器件尤为重要。
- 在高输入电压或接近最大输出电流工况下，芯片功耗升高需良好散热；建议在 SOP-8 四周留足铜面积或追加散热铜箔，必要时在底层铺大地铜并加通孔增强散热。
- 布局要点：SW 节点旁放置肖特基二极管与电感，输入电容靠近 VIN/GND，反馈与补偿网络走短而稳定的回路，避免噪声耦合到敏感信号。
五 性能与可靠性说明
- XL1509A-12E1 提供高效率设计基础（具体效率受输入电压、输出电流及外部器件影响），在典型工况下效率可达较高水平，适合空间受限且对能效要求较高的应用。
- 器件具备过流保护提高系统安全性；工作温度 -40℃～+125℃ 满足严苛环境要求。
XL1509A-12E1 以其宽输入、高电压耐受、内置开关与内补偿特性，为需要简化外部元件、节省 PCB 面积并保持可靠性与效率的 12V 降压方案提供了实用选择。若需进一步的电气参数表、典型波形或参考电路图，请提供具体的输入/输出与布局限制，以便给出更精确的元件选型与设计建议。
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