0.5A,15V输出降压型DC/DC变换器
The LM2574 Buck Switching Regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step-down switching regulator buck converter. All circuits of this series are capable of driving a 0.5 A loadwith excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version. The Buck Switching Regulator is designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the LM2574 are offered by several different inductor manufacturers. Since the LM2574 converter is a switch-mode power supply, its efficiency is significantly higher in comparison with popular three-terminal linear regulators, especially with higher input voltages. In many cases, the power dissipated by the LM2574 regulator is so low, that no heatsink is required or its size could be reduced dramatically. The LM2574 features include a guaranteed 4% tolerance on output voltage within specified input voltages and output load conditions, and +/-10%on the oscillator frequency +/-2% over 0C to 125C. External shutdown is included, featuring 80 uA typical standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
Features
---
|
输出接口数 1
输出电压 15 V
输出电流 500 mA
开关频率 52 kHz
拓扑结构 Buck
输入电压Max 40 V
输入电压Min 4.75 V
输出电压Min 15 V
输出电流Max 0.5 A
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 4.75 V
输入电压 4.75 V
安装方式 Through Hole
引脚数 8
封装 DIP-8
封装 DIP-8
工作温度 -40℃ ~ 125℃ TJ
产品生命周期 Unknown
包装方式 Tube
制造应用 Efficient Pre-Regulator for Linear Regulators, On-Card Switching Regulators, Power Supply for Battery Chargers, Simple and High-Efficiency Step-Down Buck Regulators
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM2574N-015G ON Semiconductor 安森美 | 当前型号 | 当前型号 |
LM2574N-ADJG 安森美 | 功能相似 | LM2574N-015G和LM2574N-ADJG的区别 |