LTM4618电源稳压芯片特性

LTM4618是Linear 公司的带跟踪和频率同步的6A DC/DC μModule电源稳压解器，包括了开关控制器，功率FET，电感和所有支持的元件。输入电压4.5V - 26.5V，输出电压0.8V - 5V由单个外接电阻设定。可锁相的固定频率从250kHz到780kHz，可应用在通信和网络设备，服务器，存储卡，ATXA卡，工业设备，点负载稳压和医疗系统。

LTM4618主要特性:



Complete Standalone Power Supply



Wide Input Voltage Range: 4.5V to 26.5V



6A DC Typical, 8A Peak Output Current



0.8V to 5V Output



Output Voltage Tracking



±1.75% Maximum Total DC Error



Current Mode Control/Fast Transient Response



Phase-Lockable Fixed Frequency 250kHz to 780kHz



On-Board Frequency Synchronization



Selectable Burst ModeR Operation



Power Good Voltage Indicator



Output Overvoltage Protection



Output Current Foldback Limiting



9mmx15mmx4.32mm LGA Package



LTM4618应用:



Telecom and Networking Equipment



Servers



Storage Cards



ATCA Cards



Industrial Equipment



Point of Load Regulation



Medical Systems



图1。LTM4618简化方框图



图2。LTM4618输入6-26.5V，输出3.3V/6A电路图：满足CISPR25导电和CISPR22 辐射EMI解决方案