The model "TPS70933DBVR" is a voltage regulator produced by Texas Instruments (TI). It is a Low Dropout Regulator (LDO) designed to provide stable voltage output from a varying input voltage, with efficient power delivery for electronic circuits.
Here are the details you requested for the TPS70933DBVR, which is in the SOT-23-5 package type, a small-outline transistor package with 5 pins.
Pinout and Function List for TPS70933DBVR (SOT-23-5)
Pin No. Pin Name Function Description 1 IN Input Pin. This is where the input voltage (typically higher than the desired output voltage) is applied. 2 GND Ground Pin. This is the common reference point for the voltage regulator, typically connected to the circuit ground. 3 OUT Output Pin. This pin provides the regulated output voltage, typically 3.3V for this model. 4 EN Enable Pin. Used to enable or disable the output voltage. When this pin is pulled high, the output is enabled; when low, the output is disabled. 5 NC No Connection. This pin is not internally connected to any circuitry and does not have a function.Circuit Principle of TPS70933DBVR
The TPS70933DBVR is a Low Dropout Regulator (LDO). Its main function is to provide a regulated output voltage with minimal input-to-output voltage difference (dropout voltage). The internal circuitry of the LDO includes a pass element, feedback control loop, and protection mechanisms to ensure stable operation.
Input Voltage (IN): The input voltage is supplied through the IN pin. This voltage should always be higher than the regulated output by a certain margin (called dropout voltage), which for this device is typically 40mV at 150mA of load current. Output Voltage (OUT): The output voltage is provided through the OUT pin. This voltage is stable and regulated by the internal control loop and feedback mechanisms. Enable Pin (EN): The EN pin is used to enable or disable the regulator. If the EN pin is pulled high (to a logic high level), the regulator will output the regulated voltage. If it is pulled low, the output will be disabled, reducing current consumption to a minimal value. Ground Pin (GND): The GND pin provides a reference for the output voltage. All voltage measurements are made relative to the ground. No Connection (NC): This pin does not have any functional purpose and is not connected to the internal circuitry.FAQ for TPS70933DBVR
Q: What is the output voltage of the TPS70933DBVR? A: The output voltage of the TPS70933DBVR is 3.3V, regulated at 150mA load current.
Q: Can I use the TPS70933DBVR for 5V output? A: No, the TPS70933DBVR is designed specifically for a 3.3V output. For 5V output, you would need a different part number, such as the TPS7A47.
Q: What is the dropout voltage of the TPS70933DBVR? A: The TPS70933DBVR has a low dropout voltage of approximately 40mV at 150mA of load current.
Q: What type of package does the TPS70933DBVR come in? A: The TPS70933DBVR comes in the SOT-23-5 package type, which is a small 5-pin package.
Q: What is the maximum input voltage for the TPS70933DBVR? A: The maximum input voltage for the TPS70933DBVR is 6V.
Q: How do I enable the TPS70933DBVR? A: The TPS70933DBVR can be enabled by pulling the EN pin high. To disable the output, pull the EN pin low.
Q: Can I use the TPS70933DBVR in battery-powered devices? A: Yes, the TPS70933DBVR is ideal for low-power, battery-operated devices due to its low dropout voltage and efficient performance.
Q: How much current can the TPS70933DBVR supply? A: The TPS70933DBVR can supply up to 150mA of output current.
Q: Can the TPS70933DBVR be used for power supply circuits? A: Yes, the TPS70933DBVR is designed for use in power supply circuits where a stable 3.3V output is required.
Q: Is the TPS70933DBVR thermally protected? A: Yes, the TPS70933DBVR includes internal thermal protection to prevent overheating.
Q: What is the quiescent current of the TPS70933DBVR? A: The quiescent current of the TPS70933DBVR is typically 30µA, which is very low and ideal for battery-operated devices.
Q: What is the operating temperature range of the TPS70933DBVR? A: The operating temperature range for the TPS70933DBVR is -40°C to +125°C.
Q: Does the TPS70933DBVR require external components? A: Yes, the TPS70933DBVR may require external capacitor s for stable operation. Refer to the datasheet for recommended values.
Q: How do I calculate the stability of the output voltage in a circuit with the TPS70933DBVR? A: Stability depends on proper input and output capacitor selection. Refer to the datasheet for recommended capacitor values to ensure stable operation.
Q: Can I use the TPS70933DBVR in high-frequency applications? A: The TPS70933DBVR is suitable for low-frequency applications, and may not be ideal for high-frequency power regulation needs.
Q: What happens if the EN pin is left floating? A: If the EN pin is left floating, the device may behave unpredictably. It is recommended to tie it either high or low.
Q: What is the output noise level of the TPS70933DBVR? A: The TPS70933DBVR has low output noise, making it suitable for sensitive analog circuits.
Q: Can I use the TPS70933DBVR in a 1.8V system? A: No, the TPS70933DBVR is designed specifically for a 3.3V output. For a 1.8V output, you would need a different voltage regulator.
Q: How do I handle transient conditions with the TPS70933DBVR? A: Ensure that the input and output capacitors are chosen correctly, as recommended in the datasheet, to handle transient conditions effectively.
Q: Where can I find the full datasheet for the TPS70933DBVR? A: The full datasheet for the TPS70933DBVR can be found on the Texas Instruments website.
This explanation and FAQ are complete in terms of the available data for the TPS70933DBVR. If you need further details, feel free to ask!
