适用于升压、SEPIC 和反激式直流/直流转换器的 48V 宽输入电压高效控制器 10-VSSOP -40 to 125
The LM3481 device is a versatile Low-Side N-FET high-performance controller for switching regulators. The device is suitable for use in topologies requiring a low-side FET, such as boost, flyback, SEPIC, and so on. The LM3481 device can be operated at extremely high switching frequencies to reduce the overall solution size. The switching frequency of the LM3481 device can be adjusted to any value between 100kHz and 1MHz by using a single external resistor or by synchronizing it to an external clock. Current mode control provides superior bandwidth and transient response in addition to cycle-by-cycle current limiting. Current limit can be programmed with a single external resistor.
The LM3481 device has built-in protection features such as thermal shutdown, short-circuit protection and overvoltage protection. Power-saving shutdown mode reduces the total supply current to 5 µA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up.
输出接口数 1
输出电压 1.275V ~ 500V
输出电流 1 A
静态电流 3.70 mA
调节输出数 1
开关频率 100kHz ~ 1MHz
输入电压Max 48 V
输入电压Min 2.97 V
输出电流Max 1 A
最大占空比 0.85
工作温度Max 125 ℃
工作温度Min -40 ℃
安装方式 Surface Mount
引脚数 10
封装 VSSOP-10
封装 VSSOP-10
工作温度 -40℃ ~ 125℃ TJ
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM3481QMMX/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM3481QMM/NOPB 德州仪器 | 类似代替 | LM3481QMMX/NOPB和LM3481QMM/NOPB的区别 |