MAX17509

4.5V–16V、双路3A输出、高效、同步降压型DC-DC转换器,带电阻编程功能

高度可定制Buck调节器可配置为两路独立3A输出或两相6A单路输出


点击查看特定型号的库存状况。

说明

MAX17509集成两个3A内部开关降压型调节器,具有可编程特性。器件可配置为独立两路单相3A电源或单路两相输出6A电源。器件采用4.5V至16V输入工作,产生可独立调节的输出电压,范围为0.904V至3.782V和4.756V至5.048V,系统精度为±2%。

器件允许通过将电阻连接至配置引脚来选择多个可编程选项,从而为最终用户提供最大灵活性。器件的两项主要亮点是用于任意输出电压的自配置补偿和设置LX开关节点摆率来降低噪声的能力。在对噪声敏感的应用中,例如FPGA、RF和音频中的高速吉比特收发器都得益于这种独特的摆率控制。提供SYNC输入,用于多片器件与系统时钟同步操作。

MAX17509提供输出过压(OV)和欠压(UV)保护,以及过流(OC)和欠流(UC)保护,具有可选的打嗝/闭锁选项。器件工作在-40°C至+125°C温度范围,带有温度检测和关断功能,用于过热(OT)保护。器件采用32引脚5mm x 5mm TQFN封装。
MAX17509: Functional Diagram MAX17509: Functional Diagram 放大+

关键特性

  • 缩减DC-DC稳压器库存清单
    • 输出电压(0.904V至3.782V和4.756V至5.048V,分辨率为20mV)
    • 可配置为两路独立输出(3A/3A)或两相单路输出(6A)
  • 降低噪声和EMI
    • 可调节开关频率,可选择0/180°相移
    • 外部频率同步
    • 可调节开关摆率
    • 符合EN55022 (CISPR22) B类辐射和传导性EMI标准
  • 便于系统设计
    • 全陶瓷电容方案
    • 自动配置内部补偿
    • 可选择打嗝或砖墙模式
    • 可调节软启动上升/下降时间,具有软停止模式和预偏置启动
    • -40°C至+125°C工作温度范围
  • 工作可靠
    • 可靠的故障保护(VIN_UVLO、UV/OV、UC/OC、OT)
    • 电源就绪

应用

  • 基站负载点稳压器
  • FPGA和DSP核心电源
  • 工控设备
  • 多负载点(POL)电源
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17509 4.5160.9520mV stepsResistor3InternalYesYes2
500
1000
1500
2000
EE-Sim
TQFN-CU/32
$2.44 @1k
查看所有Step-Down Switching Regulators (367)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX17509EVKIT: MAX17509评估板

工具和模型

  • EE-Sim: MAX17509 设计和仿真
  • MAX17509 SIMPLIS Schematic
  • CAD Symbols and Footprints

  • MAX17509ATJ+
  • MAX17509ATJ+T
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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