产品概览
The TPS70933DBVR from Texas Instruments is a 150mA, 3.3V fixed-output ultra-low IQ LDO regulator in a SOT-23-5 package. With 1uA quiescent current and reverse current protection, it is designed for always-on battery-powered systems requiring minimal standby power.
主要规格
| Output Voltage | 3.3 V fixed (+/-2% over temperature) |
| 输出电流 | 150 mA (200 mA peak) |
| 输入电压 | 2.7 V to 30 V |
| 静态电流 | 1 uA typical |
| 关机电流 | 150 nA typical |
| Dropout Voltage | 300 mV typical at 150mA |
| PSRR | 80 dB at 10Hz-1kHz |
| 工作温度 | -40C to +125C |
特点
- 1uA ultra-low quiescent current for always-on battery-powered systems
- 150nA shutdown current when EN pin is pulled low
- 2.7V to 30V wide input voltage range for versatile supply configurations
- Reverse current protection prevents current flow from output to input
- Enable pin with 150nA shutdown current for power gating
- 80dB PSRR at low frequency for clean RF-sensitive supply
应用
- Always-on battery-powered system 3.3V supply with 1uA IQ
- IoT and wireless sensor node power with 30V input capability
- RF power supply with 80dB PSRR for noise-sensitive applications
- Post-regulation in multi-rail power systems with reverse current blocking