TPS70939DBVR Description
The TPS70939DBVR is a linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 3.9V and capable of delivering up to 150mA of output current. This device is housed in a compact SOT23-5 package, making it ideal for surface-mount applications where space is a premium. The regulator is designed to operate with an input voltage range up to 30V, ensuring compatibility with a wide array of power sources. Its low dropout voltage of 1.4V at 150mA ensures efficient operation even at low input-to-output voltage differentials.
TPS70939DBVR Features
- Output Type: Fixed at 3.9V, providing a stable and reliable power supply for sensitive electronics.
- Input Voltage Range: Capable of handling input voltages up to 30V, making it versatile for various power supply configurations.
- Output Current: Delivers up to 150mA, suitable for powering a range of low to medium current applications.
- Low Dropout Voltage: At 1.4V, it ensures high efficiency, especially in applications where the input voltage is close to the output voltage.
- Low Quiescent Current: With a quiescent current of only 2.05 µA, it minimizes power consumption in standby or low-power modes.
- High PSRR: The power supply rejection ratio ranges from 80dB to 52dB across frequencies from 10Hz to 1kHz, ensuring minimal noise and ripple in the output voltage.
- Protection Features: Includes over-current, over-temperature, reverse current, and under-voltage lockout (UVLO) protections, enhancing reliability and longevity.
- Enable Control: Features an enable pin for easy control and power management.
- Compliance: RoHS3 compliant and REACH unaffected, ensuring environmental and regulatory compliance.
TPS70939DBVR Applications
The TPS70939DBVR is well-suited for a variety of applications requiring a stable and efficient power supply. Its compact size and robust features make it ideal for:
- Consumer Electronics: Portable devices, wearables, and IoT devices that require low power consumption and high efficiency.
- Industrial Applications: Sensors, actuators, and control systems where reliable power supply is critical.
- Telecommunications: Base stations, routers, and other networking equipment that demand low noise and high PSRR.
- Automotive: In-car electronics, infotainment systems, and other automotive applications where space constraints and high reliability are key considerations.
Conclusion of TPS70939DBVR
The TPS70939DBVR stands out as a high-performance linear voltage regulator, offering a unique combination of efficiency, reliability, and versatility. Its low dropout voltage and low quiescent current make it particularly advantageous in low-power applications, while its comprehensive protection features ensure robustness in demanding environments. The enable control feature further enhances its flexibility, making it suitable for a wide range of applications. For engineers and designers looking for a compact, efficient, and reliable power solution, the TPS70939DBVR is an excellent choice.