نظرة عامة على المنتج
The Microchip MIC5209-3.3YSTR is a 500mA low-noise LDO voltage regulator with a fixed 3.3V output in a SOT-223 package. It features very low dropout voltage (typically 10mV at light loads, 350mV at full load), better than 1% output voltage accuracy, and ultra-low noise capability. Designed for battery-powered and handheld devices, it includes an enable/shutdown pin, reversed-battery protection, current limiting, and overtemperature shutdown. The device operates from 2.5V to 16V input over the -40°C to +125°C temperature range.
المواصفات الرئيسية
| جهد الخرج | 3.3V fixed |
| تيار الإخراج | 500 مللي أمبير |
| جهد التسرب | 350mV typical at 500mA |
| نطاق جهد الإدخال | 2.5 فولت إلى 16 فولت |
| دقة الإخراج | +/-1% |
| تيار التهدئة | 80uA typical |
| PSRRR | Ultra-low noise with bypass capacitor |
| درجة حرارة التشغيل | -40 درجة مئوية إلى +125 درجة مئوية |
| الحزمة | SOT-223 |
الميزات
- Guaranteed 500mA output over full temperature range
- Low 500mV maximum dropout at full load
- Better than 1% output voltage accuracy
- Ultra-low noise capability with bypass pin
- Low ground current (80uA typical)
- Enable/shutdown pin for power management
- Reversed battery protection
- Current limiting and thermal shutdown
- No-load stability
- Low temperature coefficient
التطبيقات
- Battery-powered handheld devices
- RF and noise-sensitive circuits
- Intel Slot 1/2 processor applications
- Portable instrumentation
- USB-powered devices