MIC4574BWM
控制方式MODE | |
输入电压VINInput Voltage | 〈40V |
输出电压VOUTOutput Voltage | |
输出电流IOUTOutput Current | 500mA/0.5A |
震荡频率FOSCOscillation Frequency | 200KHZ |
内置FETBuilt-in FET | |
Description & Applications | 200kHz Simple 0.5A Buck Regulator •Fixed 200kHz operation • Voltage over specified line and load conditions: Fixed version: ±3% max. output voltage Adjustable version: ±2% max. feedback voltage • Guaranteed 0.5A switch current • Wide 4V to 24V input voltage range • Wide 1.23V to 20V output voltage range • Requires minimum external components • < 200µA typical shutdown mode • 75% efficiency (adjustable version > 75% typ.) • Standard inductors and capacitors are 25% of typical LM2574 values • Thermal shutdown • Overcurrent protection • 100% electrical thermal limit burn-in • Simple high-efficiency step-down (buck) regulator • Efficient preregulator for linear regulators • On-card switching regulators • Positive-to-negative converter (inverting buck-boost) • Isolated flyback converter using minimum external components • Negative boost converter |
描述与应用 | 200kHz的简单的0.5A降压稳压器 •固定200kHz的操作 •在指定的线电压和负载条件: 固定版本:±3%最大。输出电压 可调版本:±2%最大。反馈电压 •保证0.5A的开关电流 •宽4V至24V的输入电压范围 •宽1.23V至20V的输出电压范围 •需要最少的外部元件 •<200μA典型关断模式 •75%的效率(可调版本>75%(典型值)。) •标准电感器和电容器 的典型LM2574值的25% •热关断 •过流保护 •100%电气热极限烧 •简单的高效率降压(降压)稳压器 •高效预调节器,线性稳压器 •卡上开关稳压器 •正至负电压转换器(反相降压 - 升压) •使用最少的外部元件的隔离型反激式转换器 •负升压转换器 |
规格书PDF |