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ISL6277 PDF预览

ISL6277

更新时间： 2024-01-23 02:32:37
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
37页 967K
描述
Multiphase PWM Regulator for AMD Fusion™ Mobile CPUs Using SVI 2.0

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ISL6277 技术参数

生命周期：Unknown零件包装代码：QFN
包装说明：QCCN, LCC48,.24SQ,16针数：48
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：9 weeks
风险等级：5.61模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
控制模式：VOLTAGE-MODEJESD-30 代码：S-PQCC-N48
JESD-609代码：e3湿度敏感等级：3
端子数量：48最高工作温度：100 °C
最低工作温度：-10 °C封装主体材料：PLASTIC/EPOXY
封装代码：QCCN封装等效代码：LCC48,.24SQ,16
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：260认证状态：Not Qualified
子类别：Switching Regulator or Controllers表面贴装：YES
最大切换频率：450 kHz温度等级：OTHER
端子面层：Matte Tin (Sn) - annealed端子形式：NO LEAD
端子节距：0.4 mm端子位置：QUAD
处于峰值回流温度下的最长时间：30Base Number Matches：1

ISL6277 数据手册

 浏览型号ISL6277的Datasheet PDF文件第2页浏览型号ISL6277的Datasheet PDF文件第3页浏览型号ISL6277的Datasheet PDF文件第4页浏览型号ISL6277的Datasheet PDF文件第5页浏览型号ISL6277的Datasheet PDF文件第6页浏览型号ISL6277的Datasheet PDF文件第7页 
Multiphase PWM Regulator for AMD Fusion™ Mobile  
CPUs Using SVI 2.0  
ISL6277  
Features  
The ISL6277 is fully compliant with AMD Fusion™ SVI 2.0 and  
provides a complete solution for microprocessor and graphics  
processor core power. The ISL6277 controller supports two  
Voltage Regulators (VRs) with three integrated gate drivers and  
two optional external drivers for maximum flexibility. The Core VR  
can be configured for 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- or 3-Phase for the Core Output and  
1- or 2-Phase for the Northbridge Output  
The ISL6277 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 Monitor and Thermal Monitor  
• Differential Remote Voltage Sensing  
Applications  
• AMD Fusion CPU/GPU Core Power  
• High Efficiency Across Entire Load Range  
• Programmable Slew Rate  
• Notebook Computers  
• Programmable VID Offset and Droop on Both Outputs  
• Programmable Switching Frequency for Both Outputs  
• Excellent Dynamic Current Balance Between Phases  
• 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  
V
= 19V  
IN  
1.04  
1.02  
1.00  
0.98  
0.96  
V
= 12V  
IN  
V
= 19V  
IN  
V
CORE = 1.1V  
OUT  
V
CORE = 1.1V  
OUT  
5
0
5
10 15 20 25 30 35 40 45 50 55  
(A)  
0
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  
March 8, 2012  
FN8270.1  
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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