产品概览
The LM2596S-5.0/NOPB from Texas Instruments is a SIMPLE SWITCHER 3A step-down voltage regulator with fixed 5V output in a 5-pin TO-263 surface-mount package. Operating at 150kHz fixed frequency with up to 40V input, it requires only 4 external components and achieves up to 93% efficiency. The ON/OFF pin enables TTL-level shutdown with 80uA standby current.
主要规格
| Output Voltage | 5.0V fixed (also 3.3V, 12V, adj) |
| 输入电压 | 4.5V to 40V |
| 输出电流 | 3A |
| 开关频率 | 150kHz fixed |
| Efficiency | Up to 93% |
| Standby Current | 80uA typical (ON/OFF=high) |
| Output Tolerance | +/-4% max over line and load |
| Protection | Thermal shutdown, current limit |
| Operating Temp | -40 to +125 C (TJ) |
| 包装 | TO-263-5 (DDPAK) |
特点
- 3A output with only 4 external components
- 150kHz fixed frequency for small filter components
- TTL-level ON/OFF shutdown control
- 80uA low standby current
- Internal frequency compensation
- Thermal shutdown and current limit protection
应用
- Distributed power systems (5V from 12V/24V)
- Battery chargers
- LED drivers
- Embedded system power supplies