Overview
The TPS70933DBVT is a part of the TPS709 series of linear voltage regulators produced by Texas Instruments. These devices are designed for power-sensitive applications and are characterized by their ultra-low quiescent current of 1 μA, making them ideal for battery-powered systems that require minimal idle-state power dissipation. The TPS70933DBVT offers a fixed output voltage of 3.3 V and supports a peak output current of up to 150 mA. It features thermal shutdown, overcurrent protection, and reverse current protection, ensuring reliable operation in various environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 30 | V |
| Output Voltage | 3.3 | V |
| Maximum Output Current | 150 | mA |
| Quiescent Current (IQ) | 1 | μA |
| Shutdown Current | 150 | nA |
| Dropout Voltage (at 150 mA) | 960 to 1400 | mV |
| Line Regulation | 3 to 10 | mV |
| Load Regulation | 20 to 50 | mV |
| Thermal Shutdown Temperature | 158 | °C |
| Operating Junction Temperature | -55 to 150 | °C |
| Package Types | SOT-23-5, WSON-6 |
Key Features
- Ultra-low Quiescent Current: 1 μA, ideal for battery-powered systems.
- Reverse Current Protection: Prevents discharge current from the output into the input.
- Thermal Shutdown and Overcurrent Protection: Ensures reliable operation by protecting against thermal and current faults.
- High Accuracy: 2% accuracy over temperature.
- Low Dropout Voltage: Supports operation with minimal voltage drop.
- Enable Pin: Allows for easy enable/disable functionality with a high-level input voltage of 0.9 V.
- Small Package Options: Available in SOT-23-5 and WSON-6 packages.
Applications
- Smoke and Heat Detectors: Ideal for low-power, always-on systems.
- Thermostats: Suitable for temperature control in various environments.
- Motion Detectors (PIR, uWave): Low power consumption makes it suitable for motion detection systems.
- Cordless Power Tools and Appliance Battery Packs: Efficient power management for battery-powered tools and appliances.
- Electricity and Water Meters: Reliable operation in metering applications.
Q & A
- What is the quiescent current of the TPS70933DBVT?
The quiescent current is 1 μA, making it suitable for power-sensitive applications.
- What is the maximum output current of the TPS70933DBVT?
The maximum output current is 150 mA.
- What are the package options for the TPS70933DBVT?
The device is available in SOT-23-5 and WSON-6 packages.
- What is the thermal shutdown temperature of the TPS70933DBVT?
The thermal shutdown temperature is 158°C.
- How does the enable pin function on the TPS70933DBVT?
The device is enabled when the enable pin (EN) goes above 0.9 V. The EN pin can be left floating to enable the device.
- What is the input voltage range for the TPS70933DBVT?
The input voltage range is from 2.7 V to 30 V.
- Does the TPS70933DBVT have reverse current protection?
Yes, it features reverse current protection to block discharge current from the output into the input.
- What is the dropout voltage for the TPS70933DBVT at 150 mA output current?
The dropout voltage at 150 mA is between 960 mV and 1400 mV.
- What are some typical applications for the TPS70933DBVT?
Typical applications include smoke and heat detectors, thermostats, motion detectors, cordless power tools, and electricity meters.
- How accurate is the output voltage of the TPS70933DBVT over temperature?
The output voltage accuracy is 2% over temperature.
