Highly Efficient 3A Synchronous Buck Regulator Demonstration Boards
The ISL85003ADEMO1Z demonstration board is intended for use in point-of-load applications sourcing from 4.5V to 18V. The board is used to demonstrate the performance of...
概览
简介
The ISL85003 and ISL85003A are synchronous buck regulators with integrated high-side and low-side FETs. The regulator can operate from an input voltage range of 4. 5V to 18V while delivering a very efficient continuous 3A current. This is all delivered in a very compact 3mmx4mm DFN package. The ISL85003 is designed on Intersil’s proprietary fab process that is designed to deliver very low rDS(ON) FETs with an optimized current mode controller wrapped around it. The high-side NFET is designed to have an rDS(ON) of 65mΩ while the low-side NFET is designed to have an rDS(ON) of 45mΩ. With these two FETs, the device delivers very high efficiency power to the load. The ISL85003 can automatically switch between DCM and CCM for light-load efficiency in DCM. The switching frequency in CCM is internally set to 500kHz. The device provides a maximum static regulation tolerance of ±1% over wide line, load and temperature ranges. The output is user adjustable, with external resistors, down to 0. 8V. Pulling EN above 0. 6V enables the controller. The regulator supports prebiased output. Fault protection is provided by internal current limiting during positive or negative overcurrent conditions, output and input under and overvoltage detection and an over-temperature monitoring circuit.
特性
- Input voltage range 4.5V to 18V
- Output voltage adjustable from 0.8V, ±1%
- Efficiency up to 95%
- Integrated boot diode with undervoltage detection
- Current mode control
- DCM/CCM
- Internal or external compensation options
- 500kHz switching frequency option
- External synchronization up to 2MHz on ISL85003
- Adjustable soft-start time on the ISL85003A
- Open-drain PG window comparator
- Built-in protection
- Positive and negative overcurrent protection
- Overvoltage and thermal protection
- Input overvoltage protection
- Small 12 Ld 3mmx4mm Dual Flat No-Lead (DFN) package
应用
应用
- Network and communication equipment
- Industrial process control
- Multi function printers
- Point of load regulators
- Standard 12V rail supplies
- Embedded computing
文档
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| PDF 3.32 MB | 数据手册 | |
| PDF 5.51 MB 日文 | 手册 | |
| PDF 378 KB | 白皮书 | |
| PDF 592 KB | 应用文档 | |
| PDF 2.35 MB | 应用文档 | |
| PDF 509 KB | 应用文档 | |
| PDF 397 KB | 应用文档 | |
| PDF 650 KB | 应用文档 | |
| PDF 387 KB | 应用文档 | |
| PDF 349 KB | 应用文档 | |
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设计和开发
软件与工具
软件与工具
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Software type
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公司
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| 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.
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Simulator | 瑞萨电子 |
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开发板与套件
开发板与套件
Highly Efficient 3A Synchronous Buck Regulator Evaluation Board
The ISL85003AEVAL2Z evaluation kit is intended for use in point-of-load applications sourcing from 4.5V to 18V. The kit is used to demonstrate the performance of the
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
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支持
Renesas 样片
选择下单器件型号:
| 下单器件型号 | 样片 |
|---|---|
| ISL85003AFRZ | Availability |
| ISL85003AFRZ-TK | Availability |