Overview
The LP5907MFX-3.0/NOPB is a low-noise, low-IQ Linear Voltage Regulator (LDO) 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 noise-free 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 |
| Quiescent Current (Enabled) | 12 | 25 | - | μA |
| Dropout Voltage (Typical) | - | 120 | - | mV |
| Output Voltage Noise (BW = 10Hz to 100kHz) | - | 6.5 | - | μVRMS |
| PSRR at 1kHz | - | 82 | - | dB |
| Operating Junction Temperature | -40 | - | 125 | °C |
| Thermal Shutdown Temperature | - | 160 | - | °C |
Key Features
- Low output voltage noise: < 6.5µVRMS
- High PSRR: 82dB at 1kHz
- Low quiescent current: 12μA (enabled)
- Low dropout voltage: 120mV (typical)
- Stable with 1-µF ceramic input and output capacitors
- No noise bypass capacitor required
- Remote output capacitor placement
- Thermal-overload and short-circuit protection
- Output voltage tolerance: ±2%
Applications
- Smartphones
- Tablets
- Communications equipment
- Digital still cameras
- Factory automation
Q & A
- What is the input voltage range of the LP5907MFX-3.0/NOPB?
The input voltage range is from 2.2V to 5.5V.
- What is the maximum output current of the LP5907MFX-3.0/NOPB?
The maximum output current is 250mA.
- What is the typical dropout voltage of the LP5907MFX-3.0/NOPB?
The typical dropout voltage is 120mV.
- What is the PSRR at 1kHz for the LP5907MFX-3.0/NOPB?
The PSRR at 1kHz is 82dB.
- Does the LP5907MFX-3.0/NOPB require a noise bypass capacitor?
No, it does not require a noise bypass capacitor.
- What are the recommended capacitors for input and output stability?
1-µF ceramic capacitors are recommended for both input and output stability.
- What is the operating junction temperature range of the LP5907MFX-3.0/NOPB?
The operating junction temperature range is from -40°C to 125°C.
- Does the LP5907MFX-3.0/NOPB have thermal-overload and short-circuit protection?
- What is the output voltage tolerance of the LP5907MFX-3.0/NOPB?
The output voltage tolerance is ±2%.
- What are some common applications for the LP5907MFX-3.0/NOPB?
Common applications include smartphones, tablets, communications equipment, digital still cameras, and factory automation.
