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ISL95712HRZ

更新时间： 2024-11-14 02:52:31
品牌 Logo 应用领域
瑞萨 - RENESAS 开关
页数 文件大小 规格书
35页 1616K
描述
Multiphase PWM Regulator for AMD Fusion™ Desktop CPUs Using SVI 2.0

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中文翻译

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ISL95712HRZ 技术参数

生命周期：Unknown零件包装代码：QFN
包装说明：,针数：52
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：16 weeks
风险等级：5.71模拟集成电路 - 其他类型：SWITCHING REGULATOR
峰值回流温度（摄氏度）：NOT SPECIFIED处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

ISL95712HRZ 数据手册

 浏览型号ISL95712HRZ的Datasheet PDF文件第2页浏览型号ISL95712HRZ的Datasheet PDF文件第3页浏览型号ISL95712HRZ的Datasheet PDF文件第4页浏览型号ISL95712HRZ的Datasheet PDF文件第5页浏览型号ISL95712HRZ的Datasheet PDF文件第6页浏览型号ISL95712HRZ的Datasheet PDF文件第7页 
DATASHEET  
ISL95712  
FN8566  
Rev 1.00  
November 2, 2015  
Multiphase PWM Regulator for AMD Fusion™ Desktop CPUs Using SVI 2.0  
The ISL95712 is fully compliant with AMD Fusion™ SVI 2.0 and  
Features  
provides a complete solution for microprocessor and graphics  
• Supports AMD SVI 2.0 serial data bus interface and PMBus  
- Serial VID clock frequency range 100kHz to 25MHz  
• Dual output controller with 12V integrated core gate drivers  
• Precision voltage regulation  
processor core power. The ISL95712 controller supports two  
Voltage Regulators (VRs) for Core and Northbridge outputs. The  
Core VR can be configured for 4-, 3-, 2-, or 1-phase operation while  
the Northbridge VR supports 3-, 2- or 1-phase configurations for  
maximum flexibility. The two VRs share a serial control bus to  
communicate with the AMD CPU and achieve lower cost and  
smaller board area compared with two-chip solutions.  
- 0.5% system accuracy over-temperature  
- 0.5V to 1.55V in 6.25mV steps  
- Enhanced load line accuracy  
The PWM modulator is based on Intersil’s Robust Ripple  
Regulator R3™ Technology. Compared to traditional modulators,  
the R3™ modulator can automatically change switching  
frequency for faster transient settling time during load transients  
and improved light load efficiency.  
• Supports multiple current sensing methods  
- Lossless inductor DCR current sensing  
- Precision resistor current sensing  
• Programmable 1-, 2-, 3- or 4-phase for the core output and  
1- , 2- or 3-phase for the Northbridge output  
The ISL95712 has several other key features. Both outputs  
support DCR current sensing with a single NTC thermistor for  
DCR temperature compensation or accurate resistor current  
sensing. They also utilize remote voltage sense, adjustable  
switching frequency, OC protection and power-good indicators.  
• Adaptive body diode conduction time reduction  
• Superior noise immunity and transient response  
• Output current and voltage telemetry  
• Differential remote voltage sensing  
Applications  
• AMD Fusion CPU/GPU core power  
• High efficiency across entire load range  
• Programmable slew rate  
• Desktop computers  
• Programmable VID offset and droop on both outputs  
• Programmable switching frequency for both outputs  
• Excellent dynamic current balance between phases  
• Protection: OCP/WOC, OVP, PGOOD and thermal monitor  
• Small footprint 52 Ld 6x6 QFN package  
- Pb-free (RoHS compliant)  
Performance  
100  
1.6  
CORE  
90  
1.5  
NORTHBRIDGE  
80  
70  
60  
50  
40  
30  
20  
10  
0
CORE  
1.4  
CORE  
(PSI1)  
1.3  
NORTHBRIDGE  
1.2  
1.1  
DAC = 1.500V  
DAC = 1.500V  
80 90 100 110  
1.0  
0
10  
20  
30  
40  
50  
60  
70  
80  
90 100 110  
0
10  
20  
30  
40  
50  
60  
70  
LOAD CURRENT (A)  
LOAD CURRENT (A)  
FIGURE 1. EFFICIENCY vs LOAD  
FIGURE 2. V vs LOAD  
OUT  
FN8566 Rev 1.00  
November 2, 2015  
Page 1 of 35  
1234567...35

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