Overview
The LP5907UVE-3.0/NOPB, produced by Texas Instruments, is a low-noise, low-dropout linear voltage regulator designed to meet the stringent requirements of RF and analog circuits. This device is capable of supplying up to 250mA of output current and features a wide input voltage range of 2.2V to 5.5V, with an output voltage range of 1.2V to 4.5V. The LP5907 is notable for its class-leading noise performance, high power supply rejection ratio (PSRR), and very low quiescent current (IQ), making it an ideal choice for applications requiring high stability and low noise.
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 | ||
| Output Voltage Tolerance | -2 | 2 | % | |
| Quiescent Current (Enabled) | 12 | μA | ||
| Dropout Voltage (Typical) | 120 | mV | ||
| PSRR at 1 kHz | 82 | dB | ||
| Output Noise (Typical) | < 6.5 | μVRMS | ||
| Junction Temperature Range | -40 | 125 | °C | |
| Thermal Shutdown Temperature | 160 | °C |
Key Features
- Stable operation with 1-µF ceramic input and output capacitors without a separate noise bypass capacitor.
- Remote output capacitor placement capability.
- Thermal-overload and short-circuit protection.
- Low output voltage noise: < 6.5µVRMS.
- High PSRR: 82dB at 1kHz.
- Very low IQ (enabled): 12μA.
- Low dropout voltage: 120mV (typical).
- Operating junction temperature range: –40°C to 125°C.
- Start-up time: 80µs.
Applications
- Smartphones
- Tablets
- Communications equipment
- Digital still cameras
- Factory automation
- Cellular phones
- PDA handsets
- Wireless LAN devices
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 maximum output current of the LP5907 is 250mA.
- What is the typical dropout voltage of the LP5907?
The typical dropout voltage of the LP5907 is 120mV.
- Does the LP5907 require a noise bypass capacitor?
No, the LP5907 does not require a noise bypass capacitor.
- What is the PSRR of the LP5907 at 1 kHz?
The PSRR of the LP5907 at 1 kHz is 82dB.
- What is the quiescent current of the LP5907 when enabled?
The quiescent current of the LP5907 when enabled is 12μA.
- What is the junction temperature range of the LP5907?
The junction temperature range of the LP5907 is –40°C to 125°C.
- Does the LP5907 have thermal-overload and short-circuit protection?
- What is the typical output noise of the LP5907?
The typical output noise of the LP5907 is < 6.5µVRMS.
- What are some common applications of the LP5907?
The LP5907 is commonly used in smartphones, tablets, communications equipment, digital still cameras, and factory automation.
