Overview
The LP5907MFX-2.5/NOPB is a 250-mA, ultra-low-noise, low-IQ linear voltage regulator (LDO) produced by Texas Instruments. This device is designed to meet the stringent requirements of RF and analog circuits, offering class-leading noise performance, high power supply rejection ratio (PSRR), and low quiescent current. It is available in a SOT-23-5 package and is suitable for a wide range of applications, including mobile devices, digital cameras, and portable medical equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LP5907MFX-2.5/NOPB |
| Package Type | SOT-23-5 |
| Input Voltage Range | 2.2 V to 5.5 V |
| Output Voltage Range | 1.2 V to 4.5 V (fixed output voltage of 2.5 V for this model) |
| Output Current | 250 mA |
| Output Voltage Noise | < 6.5 µVRMS |
| PSRR | 82 dB at 1 kHz |
| Output Voltage Tolerance | ±2% |
| Quiescent Current (Enabled) | 12 µA |
| Dropout Voltage (Typical) | 120 mV |
| Operating Junction Temperature | –40°C to 125°C |
| Thermal-Overload and Short-Circuit Protection | Yes |
Key Features
- Ultra-low noise: Less than 6.5 µVRMS output voltage noise.
- High PSRR: 82 dB at 1 kHz.
- Low quiescent current: 12 µA when 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 capability.
- Thermal-overload and short-circuit protection.
- Operating junction temperature range: –40°C to 125°C.
- Enable pin for power management.
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 output current capability of the LP5907MFX-2.5/NOPB?
The LP5907MFX-2.5/NOPB can supply up to 250 mA of output current.
- What is the input voltage range for this LDO?
The input voltage range is from 2.2 V to 5.5 V.
- What is the typical dropout voltage of the LP5907MFX-2.5/NOPB?
The typical dropout voltage is 120 mV.
- Does the LP5907MFX-2.5/NOPB require a noise bypass capacitor?
No, it does not require a noise bypass capacitor.
- What is the operating junction temperature range of the LP5907MFX-2.5/NOPB?
The operating junction temperature range is from –40°C to 125°C.
- What type of protection does the LP5907MFX-2.5/NOPB have?
The device has thermal-overload and short-circuit protection.
- What is the PSRR of the LP5907MFX-2.5/NOPB at 1 kHz?
The PSRR is 82 dB at 1 kHz.
- Can the LP5907MFX-2.5/NOPB be used in RF and analog circuits?
Yes, it is designed to meet the requirements of RF and analog circuits.
- What is the quiescent current when the device is enabled?
The quiescent current is 12 µA when the device is enabled.
- Is the LP5907MFX-2.5/NOPB RoHS compliant?
Yes, the device is lead-free and RoHS compliant.
