NCP1547:1.5 A, 340 kHz, Low Voltage Buck Regulator with Synchronization Capability
The NCP1547 is a 1.5 A buck regulator IC operating at a fixed frequency of 340 kHz. The device employs the V2™ control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation. The NCV8842 accommodates input voltages from 4.0 V to 40 V and contains synchronization circuitry. The on-chip NPN transistor is capable of providing a minimum of 1.5 A of output current and is biased by an external boost capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback short-circuit protection.
技术特性
- V2™ Control Architecture
- Ultra-fast Transient Response, Improved Regulation and Simplified Design
- 2.0% Error Amp Reference Voltage Tolerance
- Tight Output Regulation
- Cycle-by-Cycle Current Limiting
- Limits Switch and Inductor Current
- Switch Frequency Decrease of 4:1 in Short Circuit
- Reduces Short Circuit Power Dissipation
- Bootstrapped Operation (BOOST)
- Increased Efficiency and Minimized On-Chip Power Dissipation
- Synchronization to External Clock (SYNC)
- Synchronization to External Clock (SYNC)
- 1.0 A Shutdown Quiescent Current
- Minimize Current Consumption when SHDNB is Asserted
- Thermal Shutdown
- Protect IC from Over-Temperature
- Soft-Start
- Decrease Inrush Current and Minimize Output Over-shoot During Start-Up
- Pb-Free Packages are Available
|
应用
- Industrial Control
- Point-of-Load Voltage Regulation
- Consumer Audio and video
- Computer and Computer Peripheral
- Automotive Version Available As NCV8843
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 |
| NCP1547DG |
Last Shipments |
|
1.5 A, 340 kHz, Low Voltage Buck Regulator with Synchronization Capability |
SOIC-8 |
751-07 |
1 |
Tube |
98 |
|
| NCP1547DR2G |
Active |
|
1.5 A, 340 kHz, Low Voltage Buck Regulator with Synchronization Capability |
SOIC-8 |
751-07 |
1 |
Tape and Reel |
2500 |
$0.9226
|
| NCP1547MNR2G |
Active |
|
1.5 A, 340 kHz, Low Voltage Buck Regulator with Synchronization Capability |
DFN-18 |
505 |
1 |
Tape and Reel |
2500 |
$1.2533 |
数据资料DataSheet下载
