The part number you provided, TPS72301DBVR, corresponds to a product from Texas Instruments (TI). The specific type of device is a Low-Dropout (LDO) Regulator, used for voltage regulation applications.
Package and Pinout Information:
Package Type: The "DBVR" suffix in the part number refers to the SOT-23-5 package, which has 5 pins. Pinout and Pin Function: Below is a detailed list of the pin functions and their usage.Pin Function Table:
Pin Number Pin Name Pin Function Description 1 IN Input voltage. This is where the input power is supplied to the regulator. The input should be higher than the output voltage by at least the dropout voltage of the LDO. 2 GND Ground pin. This is the common ground for the input, output, and the LDO regulator circuitry. 3 OUT Output voltage. This pin provides the regulated output voltage. 4 EN Enable pin. This pin is used to enable or disable the regulator. When it is pulled high, the regulator is enabled, and when it is pulled low, the regulator is disabled. 5 NC No connection. This pin is not internally connected to anything and is usually not used in the circuit.Functionality Overview:
Input (IN): The input pin is where you provide the unregulated voltage to the LDO. The voltage here must be higher than the output voltage to ensure proper regulation. The device can regulate voltages from 2.7V to 6V, and the output will be a stable voltage set by the design of the circuit.
Ground (GND): The ground pin is essential as it provides the reference point for both the input and output voltages. Proper grounding ensures the correct operation of the LDO.
Output (OUT): This is the pin where the regulated voltage is output. Depending on your circuit design, this can be configured for a fixed output (e.g., 3.3V or 5V) or an adjustable output using external resistors.
Enable (EN): The enable pin controls the ON/OFF state of the regulator. When the voltage at this pin is high, the LDO is powered on and regulates the voltage. When the voltage is low, the LDO is turned off, and no output is provided.
No Connection (NC): As a "No Connection" pin, this pin is not internally connected to any circuit inside the device. This pin is typically left floating in most designs.
Frequently Asked Questions (FAQ):
What is the input voltage range for the TPS72301DBVR? The input voltage range for the TPS72301DBVR is 2.7V to 6V.
How do I enable or disable the TPS72301DBVR? The regulator is enabled by pulling the EN pin high, and it is disabled by pulling the EN pin low.
What type of package does the TPS72301DBVR come in? The TPS72301DBVR comes in a 5-pin SOT-23-5 package.
What is the dropout voltage of the TPS72301DBVR? The typical dropout voltage is 40mV at 100mA.
Can I adjust the output voltage of the TPS72301DBVR? Yes, the output voltage can be adjusted by using external resistors for setting the voltage divider.
Is the TPS72301DBVR a fixed or adjustable regulator? The TPS72301DBVR is a fixed output regulator, but there are other variants with adjustable outputs.
What is the maximum output current for the TPS72301DBVR? The maximum output current is typically 200mA.
What is the typical output voltage for the TPS72301DBVR? The typical output voltage is 3.3V or 5V, depending on the version.
How do I calculate the output voltage of the adjustable version? For the adjustable version, use the formula: ( V{out} = V{ref} \times \left( 1 + \frac{R2}{R1} \right) ), where ( V_{ref} ) is 1.2V, and ( R1 ) and ( R2 ) are the resistors you select.
What are the thermal shutdown features of the TPS72301DBVR? The TPS72301DBVR includes a thermal shutdown feature that will disable the regulator if the junction temperature exceeds 150°C.
Can the TPS72301DBVR be used in portable devices? Yes, the low dropout voltage makes it suitable for battery-powered portable devices.
What is the quiescent current of the TPS72301DBVR? The typical quiescent current is 30µA.
What is the operating temperature range of the TPS72301DBVR? The operating temperature range is from -40°C to +125°C.
Can the TPS72301DBVR be used in automotive applications? Yes, the TPS72301DBVR can operate in automotive applications, given its wide voltage and temperature range.
How does the TPS72301DBVR handle load transients? The TPS72301DBVR has fast response time to load transients, ensuring stable voltage output.
Does the TPS72301DBVR have overcurrent protection? Yes, it includes current limiting and thermal shutdown protection to prevent damage.
What is the output voltage tolerance of the TPS72301DBVR? The output voltage tolerance is typically ±2%.
Can I use capacitor s on the output of the TPS72301DBVR? Yes, capacitors are recommended on both the input and output for stability, with a 1µF ceramic capacitor being typical.
What are the recommended input and output capacitors for the TPS72301DBVR? The recommended capacitors are 1µF for the input and 1µF to 10µF for the output.
Can the TPS72301DBVR be used for powering low-power microcontrollers? Yes, the TPS72301DBVR is ideal for low-power microcontrollers and other low-power devices due to its low quiescent current and low dropout voltage.
This explanation includes a detailed list of the pin functions, package information, and answers to common questions regarding the TPS72301DBVR. If you need further details, feel free to ask!
