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FAN5250QSC PDF预览

FAN5250QSC

更新时间： 2024-11-10 22:50:59
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 稳压器开关式稳压器或控制器调节器电源电路开关式控制器光电二极管
页数 文件大小 规格书
17页 470K
描述
Mobile Processor Core-Voltage Regulator

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中文翻译

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FAN5250QSC 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SSOP包装说明：0.150 INCH, MO-137, QSOP-24
针数：24Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.21Is Samacsys：N
其他特性：CAN ALSO OPERATE IN HYSTERETIC MODE模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.25 V最小输入电压：4.75 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G24
JESD-609代码：e3长度：8.65 mm
湿度敏感等级：1功能数量：1
端子数量：24最高工作温度：85 °C
最低工作温度：-10 °C封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装等效代码：SSOP24,.24
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：690 kHz温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

FAN5250QSC 数据手册

 浏览型号FAN5250QSC的Datasheet PDF文件第2页浏览型号FAN5250QSC的Datasheet PDF文件第3页浏览型号FAN5250QSC的Datasheet PDF文件第4页浏览型号FAN5250QSC的Datasheet PDF文件第5页浏览型号FAN5250QSC的Datasheet PDF文件第6页浏览型号FAN5250QSC的Datasheet PDF文件第7页 
www.fairchildsemi.com  
FAN5250  
Mobile Processor Core-Voltage Regulator  
Features  
Description  
• High efficiency over wide load range  
• Non dissipative current-sense; uses MOSFET RDS(ON) or  
can use optional Current-Sense resistor for greater  
precision  
• Overcurrent protection  
• Powerful drivers for N-Channel MOSFETs with adaptive  
dead time  
The FAN5250 is a single output power controller to power  
mobile CPU cores. The FAN5250 includes a 5-bit digital-to-  
analog converter (DAC) that adjusts the core PWM output  
voltage from 0.6VDC to 1.75VDC, and may be changed  
during operation. Special measures are taken to allow the  
output to transition with controlled slew rate to comply with  
Transmeta’s LongRun™ and Intel’s P3-M Speed-Step™  
requirements. The FAN5250 includes a precision reference,  
and a proprietary architecture with integrated compensation  
providing excellent static and dynamic core voltage regula-  
tion.  
• Precision core voltage control  
• Remote “Kelvin” sensing  
• Summing current-mode control with programmable  
Active Droop for Optimum Transient Response and  
Lower Processor Power Dissipation  
• 5-Bit Digital Output Voltage Selection  
• Wide Range output voltage: 0.6 VDC to 1.0 VDC in  
25mV Steps, and from 1.0 VDC to 1.75 VDC in 50mV  
Steps  
With nominal currents, the controller operates at a selectable  
frequency of 300kHz or 600kHz. At light loads, when the  
filter inductor current becomes discontinuous, the controller  
operates in a hysteretic mode dramatically improving system  
efficiency. The hysteretic mode of operation can be inhibited  
by the FPWM control pin.  
• “On-the-Fly” VID code change with programmable slew  
rate  
The FAN5250 monitors the output voltage and issues a  
PGOOD (Power-Good) when soft start is completed and the  
output is in regulation. A built-in over-voltage protection  
(OVP) forces the lower MOSFET on to prevent output volt-  
ages from exceeding 1.9V. Undervoltage protection latches  
the chip off when the output drops below 75% of the set  
value. The PWM controller's overcurrent circuitry monitors  
the converter load by sensing the voltage drop across the  
lower MOSFET. The overcurrent threshold is set by an  
external resistor. If precision overcurrent protection is  
required, an optional external current-sense resistor may  
be used.  
• Alternative input to set output voltage during start-up or  
power saving modes  
• Forced continuous conduction mode of operation  
• Output voltage (Power-Good) monitor  
• No negative core voltage on turn-off  
• Over-Voltage, Under-Voltage and Over-Current fault  
monitors  
• Selectable 300/600kHz Switching Frequency  
Applications  
• Transmeta’s Crusoe™ CPU core power  
• Intel P3-M™ processor (IMVP-2)  
LongRun is a trademark of Transmeta Corporation.  
REV. 1.1.6 3/12/03  
1234567...17

中文翻译

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FAN5250QSC 替代型号

型号 品牌 替代类型 描述 数据表
FAN5250QSCX FAIRCHILD

完全替代

 Mobile Processor Core-Voltage Regulator

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