Monolithic Power System(NASDAQ: MPWR) 近日发表MP2825X家族, 此系列包括MP28257, MP28258and MP28259 提供电流各为4A, 3A, 2A, 封装为QFN2x3,, MP2825X系列采用Constant-On-Time (COT) 控制方式, 提供快速的稳态响应并减缓负载影响及稳定回路. 工作频率可以调整, 并提供较低的RDSON, 其中MPQ8632-20 Lo-side Switch On Resistance为2.4mohm, Hi-side Switch On Resistance为9.9mohm , 输出电压可以支持到0.611V.

【产品特色】

• Wide 4.2V-to-20V Operating Input Range
• 4A/3A/2A Continuous Output Current
• MP28257 Internal 120mΩ High-Side, 50mΩ Low Side Power MOSFETs
• MP28259 Internal 130mΩ High-Side, 80mΩ Low Side Power MOSFETs
• Stable with Ceramic Output Capacitors
• Proprietary Switching Loss-Reduction Technology
• Power-Good Indicator
• Soft Startup/Shutdown
• Programmable Switching Frequency
• SCP, OCP, OVP, UVP Protection and Thermal Shutdown
• Output Adjustable from 0.815V to 13V
• Available in a 2mmx3mm QFN12 Package
  
  

【规格说明】

The Key Specifications:

• OCP Protection Latch-off Mode
• The device uses constant-on-time (COT) control to provide fast transient response and easy loop stabilization

Market Applications:

Networking Systems

Distributed Power Systems

TYPICAL APPLICATION Schematic:

Application Schematic with Low ESR Ceramic Capacitor: