Single 12V Input Supply Dual Regulator Evaluation Board
PCI Express is used in many PCs as the interface to the graphics card. Although the new format allows much higher data rate, one consequence is that 5V is no longer...
Single 12V Input Supply Dual Regulator - Synchronous Rectified Buck PWM and Linear Power Controller
跳转至页面部分：
概览
简介
The ISL6549 provides the power control and protection for two output voltages in high-performance applications. The dual-output controller drives two N-Channel MOSFETs in a synchronous rectified buck converter topology and one N-Channel MOSFET in a linear configuration. The controller is ideal for applications where regulation of both the processing unit and memory supplies is required. The synchronous rectified buck converter incorporates simple, single feedback loop, voltage-mode control with fast transient response. Both the switching regulator and linear regulator provide a maximum static regulation tolerance of ±1% over line, load, and temperature ranges. Each output is user-adjustable by means of external resistors. An integrated soft-start feature brings both supplies into regulation in a controlled manner. Each output is monitored via the FB pins for undervoltage events. If either output drops below 75% of the nominal output level, both converters are shut off and go into retry mode. The ISL6549 is available in a 14 Ld SOIC package, 16 Ld QSOP, or 16 Ld 4x4 QFN packages.
特性
- Single 12V bias supply (no 5V supply is required)
- Provides two regulated voltages
- One synchronous rectified buck PWM controller
- One linear controller
- Both controllers drive low cost N-Channel MOSFETs
- Small converter size
- Adjustable frequency 150kHz to 1MHz
- Small external component count
- Excellent output voltage regulation
- Both outputs: ±1% over temperature
- 12V down conversion
- PWM and linear output voltage range: down to 0.8V
- Simple single-loop voltage-mode PWM control design
- Fast PWM converter transient response
- High-bandwidth error amplifier
- Undervoltage fault monitoring on both outputs
- Pb-free plus anneal available (RoHS compliant)
应用
应用
- Processor and memory supplies
- ASIC power supplies
- Embedded processor and I/O supplies
- DSP supplies
文档
|
|
日期 | |
|---|---|---|
| PDF 884 KB | 数据手册 | |
| PDF 5.51 MB 日文 | 手册 | |
| PDF 603 KB | End Of Life Notice | |
| PDF 202 KB | 产品变更通告 | |
| PDF 1.17 MB | End Of Life Notice | |
| PDF 326 KB | 产品变更通告 | |
| PDF 266 KB | 产品变更通告 | |
| PDF 295 KB | 白皮书 | |
| PDF 293 KB | 其他 | |
| PDF 106 KB | Product Advisory | |
| PDF 268 KB | 产品变更通告 | |
| PDF 207 KB | 产品变更通告 | |
| PDF 108 KB | 产品变更通告 | |
| PDF 509 KB | 应用文档 | |
| PDF 397 KB | 应用文档 | |
| PDF 1.19 MB | 手册 - 开发工具 | |
16 items
|
||
设计和开发
软件与工具
软件与工具
| Software title
|
Software type
|
公司
|
|---|---|---|
| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
|
Simulator | 瑞萨电子 |
1 item
|
||
开发板与套件
开发板与套件
Single 12V Input Supply Dual Regulator Evaluation Board
PCI Express is used in many PCs as the interface to the graphics card. Although the new format allows much higher data rate, one consequence is that 5V is no longer...
模型
ECAD 模块
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| SOICN | Tube | 1000 | ||
| SOICN | Reel | 10000 | ||
| QFN | Tube | 750 | ||
| QFN | Reel | 6000 | ||
| QSOP | Tube | 980 | ||
| QSOP | Reel | 2500 |
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