Overview
The TPS7A0518PDBZR is a high-performance, low-dropout (LDO) voltage regulator produced by Texas Instruments. Designed for applications requiring precise voltage regulation and low noise, this LDO regulator is part of Texas Instruments' TPS7A05 series. It is specifically engineered to deliver ultra-low noise performance and high power supply rejection ratio (PSRR), making it ideal for sensitive analog and RF applications. The TPS7A0518PDBZR is available in a compact SOT-23 package, offering a balance of performance and space efficiency. Its target user groups include designers of portable electronics, medical devices, and communication systems where stable and clean power is critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 1.8 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 200 | mV | At 150 mA |
| Input Voltage Range | 2.2 to 5.5 | V | |
| PSRR | 70 | dB | At 1 kHz |
| Noise | 11 | µVRMS | 10 Hz to 100 kHz |
| Operating Temperature | -40 to +125 | °C | |
| Package | SOT-23-5 | DBZ |
Key Features
- Ultra-Low Noise: 11 µVRMS ensures clean power for sensitive applications.
- High PSRR: 70 dB at 1 kHz minimizes input voltage fluctuations.
- Low Dropout Voltage: 200 mV at 150 mA enables efficient operation with low input voltages.
- Wide Input Voltage Range: 2.2 V to 5.5 V supports versatile power sources.
- Compact Package: SOT-23-5 footprint saves board space in compact designs.
Applications
The TPS7A0518PDBZR is widely used in applications requiring stable and low-noise power supplies. Typical applications include:
- Portable Electronics: Smartphones, tablets, and wearables benefit from its compact size and efficiency.
- Medical Devices: Provides reliable power for sensitive diagnostic and monitoring equipment.
- Communication Systems: Ensures clean power for RF and analog circuits in wireless communication devices.
- Industrial Automation: Supports precision control systems and sensors.
Q & A
1. What is the output voltage of the TPS7A0518PDBZR?
The output voltage is fixed at 1.8 V.
2. What is the maximum output current?
The maximum output current is 150 mA.
3. What is the dropout voltage at 150 mA?
The dropout voltage is 200 mV at 150 mA.
4. What is the input voltage range?
The input voltage range is 2.2 V to 5.5 V.
5. What is the PSRR of the TPS7A0518PDBZR?
The PSRR is 70 dB at 1 kHz.
6. How low is the noise performance?
The noise is 11 µVRMS from 10 Hz to 100 kHz.
7. What is the operating temperature range?
The operating temperature range is -40°C to +125°C.
8. What package does the TPS7A0518PDBZR use?
It uses a SOT-23-5 package.
9. Is this LDO regulator suitable for RF applications?
Yes, its ultra-low noise and high PSRR make it ideal for RF applications.
10. Can it be used in medical devices?
Yes, it is suitable for medical devices due to its reliability and low noise performance.
