Overview
The LP5907MFX-2.85/NOPB is a low-noise, low-dropout 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 high performance and low noise.
The LP5907MFX-2.85/NOPB operates with an input voltage range of 2.2V to 5.5V and provides a fixed output voltage of 2.85V. It is stable with 1µF ceramic input and output capacitors and does not require a separate noise bypass capacitor. The device also includes thermal-overload and short-circuit protection, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.2 | 5.5 | V | |
| Output Voltage | 2.85 | V | ||
| Output Current | 0 | 250 | mA | |
| Output Voltage Tolerance | -2 | 2 | % | |
| Quiescent Current (Enabled) | 12 | µA | ||
| Dropout Voltage (Typical) | 120 | mV | ||
| Output Voltage Noise | < 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
- Low output voltage noise: < 6.5µVRMS
- High PSRR: 82dB at 1kHz
- Low quiescent current: 12µA (enabled)
- Low dropout voltage: 120mV (typical)
- Stable with 1µF ceramic input and output capacitors; no separate noise bypass capacitor required
- Remote output capacitor placement
- Thermal-overload and short-circuit protection
- Operating junction temperature range: -40°C to 125°C
- Fixed output voltage options from 1.2V to 4.5V in 25mV steps
- Support for custom design using the WEBENCH® Power Designer
Applications
- Mobile phones and tablets
- Digital cameras and audio devices
- Portable and battery-powered equipment
- 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-2.85/NOPB?
The input voltage range is from 2.2V to 5.5V.
- What is the fixed output voltage of the LP5907MFX-2.85/NOPB?
The fixed output voltage is 2.85V.
- What is the maximum output current of the LP5907MFX-2.85/NOPB?
The maximum output current is 250mA.
- Does the LP5907MFX-2.85/NOPB require a noise bypass capacitor?
No, it does not require a separate noise bypass capacitor.
- What are the thermal protection features of the LP5907MFX-2.85/NOPB?
The device includes thermal-overload and short-circuit protection.
- What is the operating junction temperature range of the LP5907MFX-2.85/NOPB?
The operating junction temperature range is from -40°C to 125°C.
- What types of capacitors are recommended for use with the LP5907MFX-2.85/NOPB?
X7R capacitors are recommended, but X5R, Y5V, and Z5U capacitors can also be used with proper consideration of the application and conditions.
- What is the typical quiescent current of the LP5907MFX-2.85/NOPB when enabled?
The typical quiescent current is 12µA when enabled.
- What is the typical dropout voltage of the LP5907MFX-2.85/NOPB?
The typical dropout voltage is 120mV.
- Can the LP5907MFX-2.85/NOPB be used in RF and analog circuits?
