Overview
The LP5907UVX-2.8/NOPB is a low-noise, ultra-low-dropout (LDO) voltage regulator produced by Texas Instruments. This device is designed to meet the stringent requirements of RF and analog circuits, offering exceptional noise performance, high power supply rejection ratio (PSRR), and low quiescent current. The LP5907UVX-2.8/NOPB can supply up to 250 mA of output current and is available in a compact 4-pin DSBGA (YKE) package. It operates over an input voltage range of 2.2 V to 5.5 V and provides a fixed output voltage of 2.8 V in this specific model. The device is stable with 1-µF ceramic input and output capacitors and does not require a separate noise bypass capacitor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.2 V to 5.5 V | V |
| Output Voltage Range | 1.2 V to 4.5 V (Fixed 2.8 V for LP5907UVX-2.8/NOPB) | V |
| Output Current | Up to 250 mA | mA |
| Package Type | DSBGA (YKE) | - |
| Number of Pins | 4 | - |
| Operating Junction Temperature | -40°C to 125°C | °C |
| Output Voltage Noise | < 6.5 µVRMS | µVRMS |
| PSRR at 1 kHz | 82 dB | dB |
| Output Voltage Tolerance | ±2% | % |
| Quiescent Current (Enabled) | 12 µA | µA |
| Dropout Voltage (Typical) | 120 mV | mV |
Key Features
- Ultra-low noise performance: < 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 separate noise bypass capacitor required.
- Remote output capacitor placement possible.
- Thermal-overload and short-circuit protection.
- Operating junction temperature range: -40°C to 125°C.
- Compact DSBGA (YKE) package with 4 pins.
Applications
- Smartphones
- Tablets
- Communications equipment
- Digital still cameras
- Factory automation
The LP5907UVX-2.8/NOPB is particularly suited for RF and analog circuits where low noise and high PSRR are critical.
Q & A
- What is the input voltage range of the LP5907UVX-2.8/NOPB? The input voltage range is 2.2 V to 5.5 V.
- What is the fixed output voltage of the LP5907UVX-2.8/NOPB? The fixed output voltage is 2.8 V.
- What is the maximum output current of the LP5907UVX-2.8/NOPB? The maximum output current is up to 250 mA.
- What type of package does the LP5907UVX-2.8/NOPB come in? It comes in a 4-pin DSBGA (YKE) package.
- What is the operating junction temperature range of the LP5907UVX-2.8/NOPB? The operating junction temperature range is -40°C to 125°C.
- Does the LP5907UVX-2.8/NOPB require a noise bypass capacitor? No, it does not require a separate noise bypass capacitor.
- What is the typical dropout voltage of the LP5907UVX-2.8/NOPB? The typical dropout voltage is 120 mV.
- What is the PSRR at 1 kHz for the LP5907UVX-2.8/NOPB? The PSRR at 1 kHz is 82 dB.
- What are some common applications for the LP5907UVX-2.8/NOPB? Common applications include smartphones, tablets, communications equipment, digital still cameras, and factory automation.
- Is the LP5907UVX-2.8/NOPB protected against thermal overload and short circuits? Yes, it has thermal-overload and short-circuit protection.
