0.5A,可调输出,降压型DC/DC变换器
The LM2574 series of 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 load with 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.
These regulators were 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.
Features
• 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
• Adjustable Version Output Voltage Range, 1.23 to 37 V ±4% max over Line and Load Conditions
• Guaranteed 0.5 A Output Current
• Wide Input Voltage Range: 4.75 to 40 V
• Requires Only 4 External Components
• 52 kHz Fixed Frequency Internal Oscillator
• TTL Shutdown Capability, Low Power Standby Mode
• High Efficiency
• Uses Readily Available Standard Inductors
• Thermal Shutdown and Current Limit Protection
• NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
• Pb−Free Packages are AvailableApplications
• Simple and High−Efficiency Step−Down Buck Regulators
• Efficient Pre−regulator for Linear Regulators
• On−Card Switching Regulators
• Positive to Negative Converters Buck−Boost
• Negative Step−Up Converters
• Power Supply for Battery Chargers
输出接口数 1
输出电压 1.23V ~ 37V
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Max 37 V
输出电压Min 1.23 V
输出电流Max 0.5 A
工作温度Max 125 ℃
工作温度Min -40 ℃
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
RoHS标准 Non-Compliant
含铅标准 Contains Lead
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM2574N-ADJ ON Semiconductor 安森美 | 当前型号 | 当前型号 |
LM2574N-ADJG 安森美 | 类似代替 | LM2574N-ADJ和LM2574N-ADJG的区别 |
LM2574N-ADJ/NOPB 德州仪器 | 功能相似 | LM2574N-ADJ和LM2574N-ADJ/NOPB的区别 |
LM2574HVN-ADJ/NOPB 德州仪器 | 功能相似 | LM2574N-ADJ和LM2574HVN-ADJ/NOPB的区别 |