Overview
The LP5907UVX-2.5/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 stable and noise-free power supply.
The LP5907 is available in several package options, including DSBGA, SOT-23, and X2SON, and can operate over a wide temperature range from –40°C to 125°C. It supports remote output capacitor placement and does not require a separate noise bypass capacitor, simplifying the design process.
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 | 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: < 6.5 μVRMS
- High power-supply rejection ratio (PSRR): 82 dB at 1 kHz
- Low quiescent current: 12 μA (enabled)
- Low dropout voltage: 120 mV (typical)
- Stable with 1-μF ceramic input and output capacitors; no noise bypass capacitor required
- Remote output capacitor placement supported
- Thermal-overload and short-circuit protection
- Operating junction temperature range: –40°C to 125°C
- Available in DSBGA, SOT-23, and X2SON packages
Applications
- Smartphones and tablets
- Communications equipment
- Digital still 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 LP5907?
The input voltage range of the LP5907 is from 2.2V to 5.5V.
- What is the maximum output current of the LP5907?
The LP5907 can supply up to 250mA of output current.
- What is the typical quiescent current of the LP5907 when enabled?
The typical quiescent current when enabled is 12 μA.
- Does the LP5907 require a noise bypass capacitor?
No, the LP5907 does not require a separate noise bypass capacitor.
- What is the power-supply rejection ratio (PSRR) of the LP5907 at 1 kHz?
The PSRR at 1 kHz is 82 dB.
- What are the operating temperature limits of the LP5907?
The operating junction temperature range is from –40°C to 125°C.
- What types of capacitors are recommended for use with the LP5907?
X7R capacitors are recommended, but X5R, Y5V, and Z5U capacitors can also be used with proper consideration of the application and conditions.
- Does the LP5907 have thermal-overload and short-circuit protection?
Yes, the LP5907 includes thermal-overload and short-circuit protection.
- What are some common applications for the LP5907?
Common applications include smartphones, tablets, digital cameras, portable medical equipment, and RF power supplies.
- What are the available package options for the LP5907?
The LP5907 is available in DSBGA, SOT-23, and X2SON packages.
