Overview
The LP5907UVE-1.8/NOPB is a low-noise, ultra-low-dropout voltage regulator produced by Texas Instruments. This device is designed to supply up to 250mA of output current and is particularly suited for RF and analog circuits. It features low noise, high power supply rejection ratio (PSRR), low quiescent current, and low line or load transient response figures. The LP5907 is available in a DSBGA (YKE) package with 4 pins and operates over a temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Package | DSBGA (YKE) with 4 pins |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | 2.2V to 5.5V |
| Output Voltage Range | 1.2V to 4.5V (fixed, in 25mV steps) |
| Output Current | Up to 250mA |
| Output Voltage Noise | < 6.5µVRMS |
| PSRR at 1kHz | 82dB |
| Output Voltage Tolerance | ±2% |
| Quiescent Current (Enabled) | 12µA |
| Dropout Voltage (Typical) | 120mV |
| Ceramic Capacitor Requirements | 1µF input and 1µF output |
Key Features
- Low noise: < 6.5µVRMS output voltage noise.
- High PSRR: 82dB at 1kHz.
- Low quiescent current: 12µA when enabled.
- Low dropout voltage: 120mV typical.
- No noise bypass capacitor required.
- Remote output capacitor placement capability.
- Thermal-overload and short-circuit protection.
- Stable with 1µF ceramic input and output capacitors.
Applications
The LP5907 is designed to meet the requirements of RF and analog circuits. It is suitable for a variety of applications including:
- RF circuits requiring low noise and high PSRR.
- Analog circuits needing stable and low-noise power supply.
- Portable and battery-powered devices where low quiescent current is crucial.
- Industrial and automotive systems requiring robust thermal and short-circuit protection.
Q & A
- What is the maximum output current of the LP5907?
The LP5907 can supply up to 250mA of output current.
- What is the input voltage range for the LP5907?
The input voltage range is from 2.2V to 5.5V.
- What are the available output voltage options for the LP5907?
The LP5907 is available with fixed output voltages from 1.2V to 4.5V in 25mV steps.
- Does the LP5907 require a noise bypass capacitor?
No, the LP5907 does not require a separate noise bypass capacitor.
- What is the typical dropout voltage of the LP5907?
The typical dropout voltage is 120mV.
- What is the quiescent current when the LP5907 is enabled?
The quiescent current when enabled is 12µA.
- What kind of protection does the LP5907 offer?
The LP5907 offers thermal-overload and short-circuit protection.
- What are the recommended ceramic capacitor values for the LP5907?
The device is stable with 1µF ceramic input and output capacitors.
- What is the operating temperature range of the LP5907?
The operating temperature range is from -40°C to 125°C.
- What package type and pin count does the LP5907 come in?
The LP5907 comes in a DSBGA (YKE) package with 4 pins.
