Overview
The LP5907MFX-2.8/NOPB is a low-noise, low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device is designed to supply up to 250mA of output current and is optimized for use in RF and analog circuits. It features low output voltage noise, high power supply rejection ratio (PSRR), and low quiescent current, making it suitable for a variety of applications requiring stable and quiet power supply.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.2 | 5.5 | V | |
| Output Voltage Range | 1.2 | 4.5 | V | |
| Output Current | 250 | mA | ||
| Output Voltage Tolerance | -2 | 2 | % | |
| Quiescent Current (Enabled) | 12 | μA | ||
| Dropout Voltage (Typical) | 120 | mV | ||
| Output Voltage Noise (RMS) | <6.5 | μVRMS | ||
| PSRR at 1 kHz | 82 | dB | ||
| Operating Junction Temperature | -40 | 125 | °C | |
| Input Capacitance | 0.7 | 1 | μF | |
| Output Capacitance | 0.7 | 1 | 10 | μF |
Key Features
- Stable operation with 1µF ceramic input and output capacitors without a separate noise bypass capacitor.
- Remote output capacitor placement capability.
- Thermal-overload and short-circuit protection.
- Low output voltage noise (< 6.5µVRMS) and high PSRR (82dB at 1kHz).
- Very low quiescent current (12µA enabled).
- Low dropout voltage (120mV typical).
- Operating junction temperature range: -40°C to 125°C.
- Available in various packages including DSBGA, SOT-23, and X2SON.
Applications
- Smartphones and tablets.
- Communications equipment and digital still cameras.
- Factory automation and portable medical equipment.
- Smart meters and field transmitters.
- RF, PLL, VCO, and clock power supplies.
- IP cameras and drones.
Q & A
- What is the input voltage range of the LP5907MFX-2.8/NOPB? The input voltage range is from 2.2V to 5.5V.
- What is the maximum output current of the LP5907MFX-2.8/NOPB? The maximum output current is 250mA.
- What is the typical dropout voltage of the LP5907MFX-2.8/NOPB? The typical dropout voltage is 120mV.
- Does the LP5907MFX-2.8/NOPB require a noise bypass capacitor? No, it does not require a separate noise bypass capacitor.
- What is the operating junction temperature range of the LP5907MFX-2.8/NOPB? The operating junction temperature range is from -40°C to 125°C.
- What are the recommended input and output capacitors for the LP5907MFX-2.8/NOPB? The device is stable with 1µF ceramic input and output capacitors.
- What is the PSRR of the LP5907MFX-2.8/NOPB at 1 kHz? The PSRR is 82dB at 1 kHz.
- Does the LP5907MFX-2.8/NOPB have thermal-overload and short-circuit protection? Yes, it has thermal-overload and short-circuit protection.
- What is the quiescent current of the LP5907MFX-2.8/NOPB when enabled? The quiescent current is 12µA when enabled.
- In what packages is the LP5907MFX-2.8/NOPB available? It is available in DSBGA, SOT-23, and X2SON packages.
