نظرة عامة على المنتج
The TPS72012DRVR from Texas Instruments is a 350 mA ultra-low VIN RF low-dropout linear regulator with a bias pin. It features 1.2 V fixed output, 38 µA quiescent current, 80 dB PSRR, and 110 mV dropout at full load in a tiny 6-pin WSON package.
المواصفات الرئيسية
| النوع | Low-Dropout Linear Regulator (LDO) |
| جهد الخرج | 1.2 V (Fixed) |
| تيار الإخراج | 350 mA |
| Input Voltage (VIN) | 1.1 V to 4.5 V |
| Bias Voltage (VBIAS) | 1.4 V above VOUT min |
| جهد التسرب | 110 mV @ 350 mA |
| تيار التهدئة | 38 µA |
| PSRR (VIN) | 80 dB (10 Hz to 10 kHz) |
| ضوضاء الإخراج | 48 µVRMS (10 Hz to 100 kHz) |
| Soft Start | Built-in, 140 µs start-up |
| الحزمة | WSON-6 (2 x 2 mm) |
| درجة حرارة التشغيل | -40°C to 125°C |
الميزات
- 350 mA output current with ultra-low VIN (1.1 V min)
- Dual-rail architecture: VIN for power path, VBIAS for control
- 38 µA low quiescent current
- 80 dB PSRR for noise-sensitive RF applications
- Built-in soft start with monotonic VOUT rise
- Regulates under light loads when IN pin is floating
- Overcurrent and thermal protection
- Stable with 2.2 µF ceramic output capacitor
التطبيقات
- RF and wireless connectivity power supplies
- Post-regulation from DC-DC converters
- Portable and battery-powered devices
- Digital cameras and camera phones
- Handheld instruments