降压开关稳压器, 固定, 8 V至40 V输入, 5 V/5 A输出, 260 kHz, TO-263-7
The LM2678 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 5-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 LM2678 are available from several manufacturers to greatly simplify the design process.
The LM2678 series also has built-in thermal shutdown, current limiting, and an ON/OFF control input that can power down the regulator to a low 50-µA quiescent current standby condition. 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 5 V
输出电流 5 A
针脚数 7
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 5 V
输出电流Max 5 A
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 8 V
电源电压Min 8 V
输入电压 8V ~ 40V
安装方式 Surface Mount
引脚数 8
封装 TO-263-7
封装 TO-263-7
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 |
---|---|---|
LM2678SX-5.0/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM2678S-5.0 德州仪器 | 完全替代 | LM2678SX-5.0/NOPB和LM2678S-5.0的区别 |
LM2678SX-5.0 德州仪器 | 完全替代 | LM2678SX-5.0/NOPB和LM2678SX-5.0的区别 |
LM2678S-5.0/NOPB 德州仪器 | 功能相似 | LM2678SX-5.0/NOPB和LM2678S-5.0/NOPB的区别 |