概要
説明
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. 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. 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.
特長
- 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
- Programmable 1-, 2- or 3-Phase for the Core Output and 1- or 2-Phase for the Northbridge Output
- Adaptive Body Diode Conduction Time Reduction
- Superior Noise Immunity and Transient Response
- Output Current Monitor and Thermal Monitor
- Differential Remote Voltage Sensing
- High Efficiency Across Entire Load Range
- Programmable Slew Rate
- 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)
製品比較
アプリケーション
アプリケーション
- AMD Fusion CPU/GPU Core Power
- Notebook Computers
ドキュメント
|
|
|
|
|---|---|---|
| 分類 | タイトル | 日時 |
| データシート | PDF 1.87 MB | |
| EOL通知 | PDF 1.17 MB | |
| 製品変更通知 | PDF 326 KB | |
| 製品変更通知 | PDF 223 KB | |
| 製品変更通知 | PDF 183 KB | |
| 製品変更通知 | PDF 173 KB | |
| 製品変更通知 | PDF 82 KB | |
| アプリケーションノート | PDF 509 KB | |
| アプリケーションノート | PDF 397 KB | |
9件
|
||
設計・開発
モデル
ECADモデル
[製品選択]テーブル内の製品名をクリックするとSamacSysが提供する回路図シンボル、PCBフットプリント、3D CADモデルがご確認いただけます。 お探しのシンボルやモデルが見つからない場合、Webサイトから直接リクエストできます。
| QFN | Tube | 1000 | ||
| QFN | Reel | 4000 | ||
| QFN | Tube | 1000 | ||
| QFN | Reel | 4000 |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product