控制方式
MODE | |
输入电压VIN
Input Voltage | 4~36V |
输出电压VOUT
Output Voltage | 3.3V |
输出电流IOUT
Output Current | 500mA/0.5A |
震荡频率FOSC
Oscillation Frequency | |
内置FET
Built-in FET | |
| Description & Applications | 200kHz Simple 3A Buck Regulator • Fixed 200kHz operation • 3.3V, 5V, and adjustable output versions • Voltage over specified line and load conditions: Fixed version: ±3% max. output voltage Adjustable version: ±2% max. feedback voltage • Guaranteed 3A switch current • Wide 4V to 36V input voltage range • Wide 1.23V to 33V output voltage range • Requires minimum external components • < 200µA typical shutdown mode • 75% efficiency (adjustable version > 75% typical) • Standard inductors are 25% of typical LM2576 values • Thermal shutdown • Overcurrent protection • 100% electrical thermal limit burn-in Applications • Simple high-efficiency step-down (buck) regulator • Efficient preregulator for linear regulators • On-card switching regulators • Positive-to-negative converter (inverting buck-boost) • Battery Charger • Negative boost converter • Step-down to 3.3V for Intel Pentium™ and similar microprocessors |
| 描述与应用 | 200kHz的简单3A降压稳压器 • Fixed 200kHz operation • 3.3V, 5V, and adjustable output versions • Voltage over specified line and load conditions: Fixed version: ±3% max. output voltage Adjustable version: ±2% max. feedback voltage • Guaranteed 3A switch current • Wide 4V to 36V input voltage range • Wide 1.23V to 33V output voltage range • Requires minimum external components • < 200µA typical shutdown mode • 75% efficiency (adjustable version > 75% typical) • Standard inductors are 25% of typical LM2576 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) • Battery Charger • Negative boost converter |