MAX15002

双输出buck控制器,提供跟踪/排序功能

设计灵活的双通道控制器,每路输出可提供15A并具有排序、跟踪控制


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说明

MAX15002是一款两通道输出、脉宽调制(PWM)、降压型DC-DC控制器,具有跟踪/排序功能。该器件工作在5.5V至23V或5V ±10%的输入电压范围。每个PWM控制器可提供低至0.6V的可调输出电压和高达15A的负载电流,并具有优异的负载和电源调整率。MAX15002非常适合用于高性能、小尺寸电源管理方案。

器件提供同步跟踪、比例跟踪以及输出排序多种选择,可以根据系统要求改变上电/断电顺序。MAX15002的各个PWM模块采用电压模式控制方案,具有外部补偿,可实现优异的噪声抑制能力,并可选用多种电感值和电容类型,提供了极大的设计灵活性。各个PWM模块工作在相同的固定开关频率,可在200kHz至2.2MHz之间调节,并可通过SYNC输入与外部时钟信号同步。180°错相工作时,各个转换器的工作频率高达2.2MHz,将输入电容纹波频率提高至4.4MHz,从而大大降低了RMS输入纹波电流和对输入旁路电容尺寸的要求。

MAX15002内置输入欠压锁定,带有滞回、数字软启动/软停止功能,保证每个转换器无干扰地上电和断电。上电复位(/RESET)电路具有可调节超时周期,可监测所有两路输出,当输出都达到稳定电压时,向处理器输出/RESET信号。MAX15002的保护功能包括无损耗谷电流限制模式以及"打嗝式"输出短路保护。

MAX15002采用节省空间的6mm x 6mm、40引脚TQFN-EP封装,工作在-40°C至+125°C汽车级温度范围。有关MAX15002三路输出版本的详细信息,请参考MAX15003的数据资料。
MAX15002:功能框图 MAX15002:功能框图 放大+

关键特性

  • 5.5V至23V或5V ±10%输入电压范围
  • 两路输出同步buck控制器
  • 可选择的同相或180°错相工作模式
  • 输出电压可调范围为0.6V至0.85VIN
  • 无损谷电流限流模式或采用RSENSE实现精确的谷电流检测
  • 外部补偿提供最大的灵活性
  • 数字软启动或软停止
  • 排序或同步/比例VOUT跟踪
  • 独立的PGOOD输出
  • /RESET,具有可编程超时周期
  • 200kHz至2.2MHz可调开关频率
  • 外部频率同步
  • "打嗝式"输出短路保护
  • 节省空间的6mm x 6mm、40引脚TQFN封装

应用

  • 网络/服务器电源
  • PCI Express®主机总线适配器电源
  • 负载点DC-DC转换器
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX15002 4.5230.618Resistor20ExternalYes22200
TQFN/40
$4.45 @1k
查看所有Step-Down Switching Regulators (388)
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。

技术资料

设计指南 5133 Power-Supply Solutions for Altera FPGAs
设计指南 5132 Power-Supply Solutions for Xilinx FPGAs

质量和环境数据

申请可靠性报告: MAX15002 
无铅封装的锡(Sn)晶须报告
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。

质量管理体系 >
环境管理体系 >

 
Status:
Package:
Temperature:

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