Overview
The LP5907SNX-3.0/NOPB is a low-noise, low-dropout linear voltage regulator (LDO) produced by Texas Instruments. This device is designed to supply up to 250 mA of output current and is particularly suited for applications requiring low noise, high power supply rejection ratio (PSRR), and low quiescent current. The LP5907 is ideal for use in RF and analog circuits, offering class-leading noise performance without the need for a noise bypass capacitor. It operates over an input voltage range of 2.2 V to 5.5 V and provides output voltages from 1.2 V to 4.5 V in 25 mV steps.
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 noise: < 6.5 μVRMS output voltage noise.
- High 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.
- Thermal-overload and short-circuit protection.
- Operating junction temperature range: -40°C to 125°C.
- Available in various packages including DSBGA, SOT-23, and X2SON.
Applications
- Smartphones and tablets.
- Digital still cameras and audio devices.
- Communications equipment.
- Factory automation.
- 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 2.2 V to 5.5 V.
- What is the maximum output current of the LP5907?
The LP5907 can supply up to 250 mA of output current.
- What is the typical dropout voltage of the LP5907?
The typical dropout voltage of the LP5907 is 120 mV.
- Does the LP5907 require a noise bypass capacitor?
No, the LP5907 does not require a noise bypass capacitor.
- What is the operating junction temperature range of the LP5907?
The operating junction temperature range of the LP5907 is from -40°C to 125°C.
- What are the key applications of the LP5907?
The LP5907 is used in smartphones, tablets, digital cameras, communications equipment, and other portable and battery-powered devices.
- What is the PSRR of the LP5907 at 1 kHz?
The PSRR of the LP5907 at 1 kHz is 82 dB.
- What is the quiescent current of the LP5907 when enabled?
The quiescent current of the LP5907 when enabled is 12 μA.
- 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?
