MAX17017

用于低功率架构的四输出控制器

高度集成的电压控制器,提供四路稳压输出,采用6mm x 6mm封装


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说明

MAX17017四输出控制器用于基于低功耗架构的超级移动便携式计算机(UMPC)。MAX17017紧凑的低成本控制器具有4路独立的调节器—主调节器、3AP-P内部降压调节器、5AP-P内部降压调节器以及2A源出/吸入电流线性稳压器。

主调节器可配置成降压转换器(对于2至4节Li+电池的应用)或配置成升压转换器(对于单节Li+电池的应用)。内部开关调节器包括5V同步MOSFET,可直接由单节Li+电池或从3.3V/5V主电源供电。最后,线性稳压器可源出、吸入2A电流,支持DDR终端供电或产生固定输出电压。

降压转换器采用峰值电流模式、固定频率控制方案,该架构易于实现,无需牺牲快速瞬态响应性能。该架构还支持峰值限流保护和跳脉冲工作,以保持轻载下高效工作。

独立的使能输入和独立的漏极开路电源就绪指示输出可支持灵活的电源排序。软启动功能确保输出电压缓慢增加至标称值,以降低浪涌电流。禁止状态下调节器进入高阻状态,避免通过低边MOSFET快速放电时产生负的输出电压。MAX17017还包括输出欠压保护、输出过压保护以及热故障保护。

MAX17017采用48引脚、6mm x 6mm、薄型QFN封装。
MAX17017:标准应用电路 MAX17017:标准应用电路 放大+

关键特性

  • 固定频率、电流模式控制器
  • 5.5V至28V输入范围(降压)或3V至5V输入范围(升压)
  • 1路升压或降压控制器
  • 1路内部5AP-P降压调节器
  • 1路内部3AP-P降压调节器
  • 1路可源出/吸入2A电流的线性稳压器,具有动态REFIN
  • 内部BST二极管
  • 内部5V、50mA线性稳压器
  • 故障保护—欠压、过压、热过载以及峰值限流
  • 独立的使能输入和电源就绪输出
  • 电压受控的软启动
  • 高阻关断
  • 10µA (典型值)关断电流

应用

  • 1至4节Li+电池供电设备
  • 低功率架构
  • 笔记本电脑和亚笔记本电脑
  • PDA和移动通信
  • 便携式游戏机
  • 超级移动PC (UMPC)
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)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17017 5.5280.756.35
Dyn. REF In
Preset
Resistor
5
External
Internal
YesYes31000
TQFN/48
$3.85 @1k
查看所有Step-Down Switching Regulators (404)
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

产品可靠性报告: MAX17017.pdf 
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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类型 编号 PDF 标题
设计指南 5133 Power-Supply Solutions for Altera FPGAs
设计指南 5132 Power-Supply Solutions for Xilinx FPGAs