NCP5228: Notebook DDR Controller
NCP5228 is a dual synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into multiple power rails required in desktop and notebook system. NCP5228 consists of two buck switching controllers with fixed 5.0 V output on channel 2, 3.3 V on channel 1 and two on-board LDOs with three outputs: 5 V / 60 mA and 3.3 V or 12 V / 10 mA. NCP5228 supports high efficiency, fast transient response and provides power good signals. ON Semiconductor proprietary adaptive-ripple control enables seamless transition from CCM to DCM, where converter runs at reduced switching frequency with much higher efficiency at light load. The part operates with supply voltage ranging from 5.5 V to 28 V. NCP5228 is available in a 28-pin QFN package.
技术特性
- 0.8% accuracy; 0.8 V reference
- 4.5 V to 27 V battery/adapter voltage range
- Adjustable output voltage range: 0.8 V to 3.3 V
- Synchronization interleaving between two NCP5228 devices
- Skip mode for power saving operation at light load
- Lossless inductor current sensing
- Programmable transient response enhancement (TRE) control
- Programmable adaptive voltage positioning (AVP)
- Input supply feedforward control
- Internal SoftStart
- Integrated output discharge (SoftStop)
- Built-in adaptive gate drivers
- PGOOD indication
- Overvoltage, undervoltage and overcurrent protection
- Thermal shutdown
|
应用
- CPU Chipsets Power Supplies
- Notebook Applications
终端产品
封装图 PACKAGE DIMENSIONS
|
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| NCP81038MNTWG |
Active |
|
Notebook DDR Controller |
SOIC-8 |
751-07 |
3 |
Tape and Reel |
4000 |
0.84 |
数据资料DataSheet下载
