MAX17528

单相、Quick-PWM控制器,用于Intel IMVP-6.5/GMCH

1相IMVP-6.5/GMCH控制器


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说明

MAX17528为单相、Quick-PWM™降压型VID电源控制器,用于笔记本电脑的Intel® CPU供电。Quick-PWM控制能够瞬时响应负载电流的快速阶跃变化。有源电压定位功能降低了功耗以及对大容量输出电容的要求,并可对钽电容、聚合物电容或陶瓷电容等大容量输出电容进行理想的电压定位补偿。

MAX17528设计用于两种不同的笔记本CPU/GPU核应用:对电池电压直接降压产生核电压或对+5V系统电源进行降压。单级转换方案允许该器件直接对较高的电池电压进行降压,实现最高的效率。在较高开关频率下采用2级转换方案(对+5V系统电源进行降压,而不是对电池降压)可实现最小的器件物理尺寸。

摆率控制器能够实现VID码之间的受控转换。基于热敏电阻的温度传感器提供可编程的热故障保护。电流监测器提供与处理器负载电流成正比的模拟输出电流。

MAX17528符合Intel IMVP-6.5 CPU核电压规范(/CLKEN上拉至3.3V)以及Intel GMCH图像处理器核电压规范(/CLKEN = GND)。MAX17528采用32引脚、5mm x 5mm、TQFN封装。
MAX17528:功能框图 MAX17528:功能框图 放大+

关键特性

  • 单相Quick-PWM控制器
  • 在整个输入电压、负载、工作温度范围内保持±0.5%的VOUT精度
  • 7位IMVP-6.5 DAC
  • 符合IMVP-6.5和GMCH规范
  • 增益可调的有源电压定位功能
  • 精确的压降和电流限制
  • 远端输出和对地检测
  • 可调节输出电压摆率
  • 电源就绪窗比较器
  • 电流监测器
  • 温度比较器
  • 驱动大功率同步整流FET
  • 2V至26V电池电压输入范围
  • 可调节开关频率(600kHz,最大值)
  • 欠压保护和热故障保护
  • 软启动和软关断
  • 内置自举二极管

应用

  • 1至4节锂离子(Li+)电池至CPU核电压转换
  • 图形核供电电源
  • IMVP-6.5核电源
  • Intel Calpella平台
  • Intel GMCH 2009
  • 笔记本/台式机/服务器
  • 电源转换器
  • 电压定位降压型转换器
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
MAX17528 22601.51.1Digital/VID25ExternalYesYes1600
TQFN/32
$2.30 @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。

质量和环境数据

产品可靠性报告: MAX17528.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:
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Temperature:

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