产品概览
The TL1963AKTTR from TI is a 1A very low dropout LDO regulator with only 340 mV dropout at full load. The wide input range up to 20V and SOT-223 package make it suitable for post-regulation from 12V or 15V rails in industrial and automotive applications.
主要规格
| 功能 | 1A, very low dropout LDO |
| 输出电流 | 1A |
| Dropout Voltage | 340 mV at 1A |
| 静态电流 | 1 mA |
| PSRR | 60 dB at 1 kHz |
| 电源电压 | Up to 20V |
| 包装 | SOT-223 (6.5×3.5mm) |
工作原理
PMOS pass element achieves 340 mV dropout at 1A. Error amplifier and bandgap reference maintain output regulation. Current limit and thermal shutdown protect the device under fault conditions. The 1 mA quiescent current is low for a 1A LDO, enabling always-on power rails.
应用
- Industrial 12V/15V to 5V/3.3V
- Automotive post-regulation
- Battery-powered systems
- Always-on power rail