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**VR11.1, 4-Phase PWM Controller with Light Load Efficiency Enhancement
and Load Current Monitoring Features**
The ISL6334B, ISL6334C control microprocessor core voltage regulation by driving up to 4 interleaved synchronous-rectified buck channels in parallel. This multiphase architecture results in multiplying channel ripple frequency and reducing input and output ripple currents. Lower ripple results in fewer components, lower cost, reduced power dissipation, and smaller implementation area.
Microprocessor loads can generate load transients with extremely fast edge rates and require high efficiency at light load. The ISL6334B, ISL6334C utilizes Intersil’s proprietary Active Pulse Positioning (APP), Adaptive Phase Alignment (APA) modulation scheme, active phase adding and
dropping to achieve and maintain the extremely fast transient response with fewer output capacitors and high efficiency from light to full load.Features
• Intel VR11.1 Compliant
• H_CPURST_N Input to Eliminate Required Extensive External Circuitry for Proper PSI# Operation of Intel’s Eaglelake Chipset Platforms
• Proprietary Active Pulse Positioning (APP) and Adaptive Phase Alignment (APA) Modulation Scheme
• Proprietary Active Phase Adding and Dropping with Diode Emulation Scheme For Enhanced Light Load Efficiency
• Precision Multiphase Core Voltage Regulation
- Differential Remote Voltage Sensing
- ±0.5% Closed-loop System Accuracy Over Load, Line and Temperature
- Bi-directional, Adjustable Reference-Voltage Offset
• Precision Resistoror DCR Differential Current Sensing
- Accurate Load-Line (Droop) Programming
- Accurate Channel-Current Balancing
- Accurate Load Current Monitoring via IMON Pin
• Microprocessor Voltage Identification Input
- Dynamic VID™ Technology for VR11.1 Requirement
- 8-Bit VID, VR11 Compatible
• Average Overcurrent Protection and Channel Current Limit
• Precision Overcurrent Protection on IMON Pin
• Thermal Monitoring and Overvoltage Protection
• Integrated Programmable Temperature Compensation
• Integrated Open Sense Line Protection
• 1 to 4-Phase Operation, Coupled Inductor Compatibility
• Adjustable Switching Frequency up to 1MHz Per Phase
• Package Option
- QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline
• Pb-Free (RoHS Compliant) -
Similar parts: 430483 , Click to view
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Datasheet
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- Datasheet: Download ISL6682IAZ
- Chipdatas Part: CD93-ISL6682IAZ
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/13 21:13 +0800
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