NCP1597B:2.0 A Synchronous Buck Regulator
The NCP1597B is a fixed 1 MHz, high-output-current, synchronous PWM converter that integrates a low-resistance, high-side P-channel MOSFET and a low-side N-channel MOSFET. The NCP1597B utilizes current mode control to provide fast transient response and excellent loop stability. It regulates input voltages from 4.0 V to 5.5 V down to an output voltage as low as 0.8 V and is able to supply up to 2 A. The NCP1597B has features including fixed internal switching frequency (FSW), and an internal soft-start to limit inrush current. Using the EN pin, shutdown supply current is reduced to 3 µA maximum. Other features include cycle-by-cycle current limiting; short-circuit protection, low dropout mode, power saving mode and thermal shutdown. The part is also offered in a 6-pin 3x3mm DFN package under the NCP1597A.
技术特性
- Input Voltage Range: from 4.0 V to 5.5 V
- Optimized for +5V input
- Internal 140 mΩ HighSide Switching P-FET and 90 mΩ Low-Side N-FET
- High efficiency operation
- Fixed 1 MHz Switching Frequency
- Small output inductor and output capacitance
- Cycle-by-Cycle Current Limiting
- Protection feature
- Overtemperature Protection
- Protection feature
- Start-up with Pre-Biased Output Load
- Compatible with uP Core and I/O requirements
- 0.8 V +/- 1.5% Reference Voltage
- Ability to output low output voltage
- Power Saving Mode During Light Load
- Increased efficiency at light load
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终端产品
- Set-Top-Box
- LCD-TV / DTV / Plasma TV
- USB Powered Devices
应用
封装图 PACKAGE DIMENSIONS
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评估板信息
| 评估板 |
状况 |
无铅(Pb-free) |
简短说明 |
| NCP1597BGEVB |
Active |
 |
EVALUATION BOARD |
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 |
| NCP1597BMNTWG |
Active |
|
2.0 A Synchronous Buck Regulator |
QFN-10 |
501-02 |
1 |
Tape and Reel |
3000 |
$0.3 |
数据资料DataSheet下载
