Productos
The MIC5219-2.8YM5-TR is a 500 mA peak-output ultra-low-noise LDO linear regulator from Microchip (formerly Micrel) in a SOT-23-5 package. It provides a fixed 2.8 V output with +/-1% accuracy from a 2.5 V to 12 V input. The BYP pin with an external 470 pF capacitor enables ultra-low output noise for RF-sensitive applications. Near-zero shutdown current (<1 μA) and CMOS/TTL-compatible enable control make it ideal for battery-powered and portable devices.
Especificaciones
| Output Voltage | 2.8 V fixed (+/-1% typ) |
| Max Output Current | 500 mA peak |
| Input Voltage | 2.5 V to 12 V |
| Dropout Voltage | 350 mV typ @ 500 mA / 115 mV typ @ 50 mA |
| Corriente de reposo | 80 μA typ @ light load |
| Shutdown Current | <1 μA typ |
| PSRR | 75 dB @ 120 Hz |
| Output Noise (with BYP cap) | 300 nV/√Hz typ |
| Output Noise (without BYP cap) | 500 nV/√Hz typ |
| Line Regulation | 0.009%/V typ |
| Load Regulation | 0.05% typ |
| Current Limit | 700 mA typ |
| Temperatura de funcionamiento | -40 °C to +125 °C |
| Paquete | SOT-23-5 (2.9 x 1.6 x 1.1 mm) |
| Embalaje | Cinta y carrete (3000/carrete) |
Características
- Ultra-low noise output with BYP pin bypass capacitor (470 pF to GND)
- Near-zero shutdown current (<1 μA) extends battery life
- CMOS P-MOSFET pass element: ground current does not increase with load
- Current limit, thermal shutdown, and reverse-battery protection
- Only 2.2 μF tantalum or 1 μF ceramic output capacitor required
- CMOS/TTL-compatible enable/shutdown control
Aplicaciones
- RF / wireless module power supply (2.8 V rail)
- Audio circuit low-noise supply
- Battery-powered portable devices
- GSM/GPRS module peak-current supply
- USB-powered devices
- 2.8 V logic / I/O power rail