具有可调节电流限制功能的 8V 至 40V、3A SIMPLE SWITCHER® 降压转换器 14-VSON -40 to 125
The LM2673 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down buck switching regulator capable of driving up to 3-A loads with excellent line and load regulation characteristics. High efficiency >90% is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3 V, 5 V, and 12 V and an adjustable output version.
The SIMPLE SWITCHER® concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator 260 kHz allows the use of physically smaller sized components. A family of standard inductors for use with the LM2673 are available from several manufacturers to greatly simplify the design process.
Other features include the ability to reduce the input surge current at power on by adding a soft-start timing capacitor to gradually turn on the regulator. The LM2673 series also has built-in thermal shutdown and resistor programmable current limit of the power MOSFET switch to protect the device and load circuitry under fault conditions. The output voltage is ensured to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.
输出接口数 1
输出电压 3.3 V
输出电流 3 A
静态电流 4.20 mA
调节输出数 1
开关频率 260 kHz
拓扑结构 Buck
输入电压Max 40 V
输入电压Min 8 V
输出电压Min 3.3 V
输出电流Max 3 A
工作温度Max 125 ℃
工作温度Min 40 ℃
输入电压 40 V
安装方式 Surface Mount
引脚数 14
封装 VSON-14
封装 VSON-14
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 |
---|---|---|
LM2673SDX-3.3/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM2673SD-3.3/NOPB 德州仪器 | 类似代替 | LM2673SDX-3.3/NOPB和LM2673SD-3.3/NOPB的区别 |
LM2673SDX-3.3 德州仪器 | 类似代替 | LM2673SDX-3.3/NOPB和LM2673SDX-3.3的区别 |
LM2673SD-3.3 德州仪器 | 功能相似 | LM2673SDX-3.3/NOPB和LM2673SD-3.3的区别 |