Overview
The TPS71719DCKR is a linear voltage regulator produced by Texas Instruments, designed for low-power applications requiring stable voltage output. This component is part of the TPS717 series, known for its compact size and high efficiency. It is particularly suitable for portable electronics, IoT devices, and other applications where space and power consumption are critical. The TPS71719DCKR offers a fixed output voltage, low dropout voltage, and excellent line and load regulation, making it a reliable choice for engineers designing power management systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage | 2.5 - 6.5 | V | Maximum |
| Output Voltage | 1.9 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 0.3 | V | @ 150mA |
| Quiescent Current | 80 | µA | Typical |
| PSRR | 70 - 45 | dB | 100Hz - 1MHz |
| Operating Temperature | -40 - 125 | °C | |
| Package | SC-70-5 | SOT-353 |
Key Features
- Fixed output voltage of 1.9V for simplified design.
- Low dropout voltage of 0.3V at 150mA, ensuring efficient operation even with low input voltages.
- Low quiescent current of 80µA, ideal for battery-powered applications.
- High power supply rejection ratio (PSRR) of 70dB at 100Hz, reducing noise in sensitive circuits.
- Compact SC-70-5 package, suitable for space-constrained designs.
Applications
The TPS71719DCKR is widely used in various applications, including portable electronics such as smartphones, tablets, and wearables, where its low power consumption and small form factor are advantageous. It is also employed in IoT devices, medical equipment, and industrial control systems, providing stable voltage regulation in environments with fluctuating power sources. Additionally, its high PSRR makes it suitable for RF and communication systems where noise suppression is critical.
Q & A
1. What is the output voltage of the TPS71719DCKR?
The TPS71719DCKR provides a fixed output voltage of 1.9V.
2. What is the maximum input voltage supported by this regulator?
The maximum input voltage is 6.5V.
3. What is the dropout voltage at 150mA?
The dropout voltage is 0.3V at 150mA.
4. What is the typical quiescent current?
The typical quiescent current is 80µA.
5. What is the PSRR of the TPS71719DCKR?
The PSRR ranges from 70dB at 100Hz to 45dB at 1MHz.
6. What package does the TPS71719DCKR come in?
It comes in an SC-70-5 (SOT-353) package.
7. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
8. Is this regulator suitable for battery-powered devices?
Yes, its low quiescent current and dropout voltage make it ideal for battery-powered applications.
9. Can the TPS71719DCKR be used in RF systems?
Yes, its high PSRR makes it suitable for noise-sensitive RF systems.
10. What are the protection features of this regulator?
It includes overcurrent, overtemperature, reverse polarity, and undervoltage lockout (UVLO) protection.
