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ISL6377HRZ

更新时间： 2024-11-21 12:23:15
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
36页 1000K
描述
Multiphase PWM Regulator for AMD Fusion™ Desktop CPUs Using SVI 2.0

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ISL6377HRZ 数据手册

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Multiphase PWM Regulator for AMD Fusion™ Desktop  
CPUs Using SVI 2.0  
ISL6377  
Features  
The ISL6377 is fully compliant with AMD Fusion™ SVI 2.0 and  
provides a complete solution for microprocessor and graphics  
processor core power. The ISL6377 controller supports two  
Voltage Regulators (VRs) with three integrated gate drivers and  
three optional external drivers for maximum flexibility. The Core  
VR can be configured for 4-, 3-, 2-, or 1-phase operation while the  
Northbridge VR supports 2- or 1-phase configurations. 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.  
• Supports AMD SVI 2.0 Serial Data Bus Interface  
• Dual Output Controller with Integrated Drivers  
- Two Dedicated Core Drivers  
- One Programmable Driver for Either Core or Northbridge  
• Precision Voltage Regulation  
- 0.5% System Accuracy Over-Temperature  
- 0.5V to 1.55V in 6.25mV Steps  
- Enhanced Load Line Accuracy  
• Supports Multiple Current Sensing Methods  
- Lossless Inductor DCR Current Sensing  
- Precision Resistor Current Sensing  
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.  
• Programmable 1-, 2-, 3- or 4-Phase for the Core Output and  
1- or 2-Phase for the Northbridge Output  
The ISL6377 has several other key features. Both outputs  
support DCR current sensing with single NTC thermistor for  
DCR temperature compensation or accurate resistor current  
sensing. Both outputs utilize remote voltage sense, adjustable  
switching frequency, OC protection and power good.  
• 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 48 Ld 6x6 QFN Package  
- Pb-Free (RoHS Compliant)  
Core Performance  
100  
1.12  
1.10  
1.08  
1.06  
90  
80  
V
= 8V  
IN  
70  
60  
50  
40  
30  
20  
10  
0
V
= 12V  
IN  
V
= 8V  
IN  
1.04  
1.02  
1.00  
0.98  
0.96  
V
= 12V  
IN  
V
CORE = 1.1V  
OUT  
V
CORE = 1.1V  
OUT  
0
5
10 15 20 25 30 35 40 45 50 55  
(A)  
0
5
10 15 20 25 30 35 40 45 50 55  
I
OUT  
I
(A)  
OUT  
FIGURE 2. V  
OUT  
vs LOAD  
FIGURE 1. EFFICIENCY vs LOAD  
August 6, 2012  
FN8336.0  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012. All Rights Reserved  
Intersil (and design) and R3 Technology are trademarks owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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ISL6377HRZ 替代型号

型号 品牌 替代类型 描述 数据表
ISL6377HRZ-T INTERSIL

完全替代

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