TLV70218DBVR Detailed explanation of pin function specifications and circuit principle instructions（414 ）
The part number TLV70218DBVR refers to a specific voltage regulator from Texas Instruments. It is a part of the TLV702 family, which includes low-dropout (LDO) regulators. The TLV70218DBVR is designed to provide a stable output voltage with very low quiescent current, making it suitable for low-power applications.
Let’s break down your request step by step:
1. Brand and Package Information:
Brand: Texas Instruments (TI) Package Type: DBVR corresponds to a SOT-23-5 package, which is a 5-pin package.2. Pin Function Specifications and Circuit Principle:
Here’s a detailed explanation of the pin functions for the TLV70218DBVR in the SOT-23-5 package:
Pin Number Pin Name Function Description 1 OUT This is the output pin where the regulated output voltage is provided. The output is typically set to 1.8V for the TLV70218. 2 IN This is the input pin, where the input voltage is supplied. The input voltage must be higher than the output voltage by at least the dropout voltage (typically a few hundred millivolts depending on the load). 3 GND This is the ground pin, which should be connected to the common ground of the system. 4 EN This is the enable pin. A logic high (typically 1.8V or higher) enables the regulator. A logic low disables the regulator, putting it into a low-power shutdown mode. 5 NC This is a No Connection pin. It does not have any internal connection and can be left unconnected in the circuit.3. Pin Function FAQ:
1. What is the input voltage range for the TLV70218DBVR? The input voltage for the TLV70218DBVR must be in the range of 2.3V to 5.5V. 2. What is the output voltage of TLV70218DBVR? The output voltage is 1.8V (fixed) for the TLV70218DBVR model. 3. How much current can the TLV70218DBVR output? The TLV70218DBVR can output a maximum current of 150mA. 4. What is the typical dropout voltage for the TLV70218DBVR? The typical dropout voltage is 30mV at a 1mA load. 5. Can the TLV70218DBVR be used in a 3.3V system? Yes, it can, but the input voltage should always be higher than 1.8V (the output) by at least the dropout voltage. 6. What is the purpose of the EN pin? The EN (Enable) pin is used to turn the regulator on and off. A high voltage enables the output, while a low voltage disables it. 7. What happens when the EN pin is low? When the EN pin is low, the regulator is disabled, and the output voltage is turned off. 8. What is the quiescent current of the TLV70218DBVR? The quiescent current of the TLV70218DBVR is typically 25nA in shutdown mode. 9. Is the TLV70218DBVR thermally protected? Yes, the TLV70218DBVR includes internal thermal shutdown protection. 10. Can the TLV70218DBVR be used in a mobile device? Yes, its low dropout voltage and low quiescent current make it suitable for mobile applications. 11. What is the maximum temperature the TLV70218DBVR can handle? The maximum junction temperature is 150°C. 12. Does the TLV70218DBVR require external capacitor s for stability? Yes, external ceramic capacitors are recommended for stable operation. 13. What is the recommended input capacitor for the TLV70218DBVR? A 1µF ceramic capacitor is recommended for the input. 14. What is the recommended output capacitor for the TLV70218DBVR? A 1µF ceramic capacitor is recommended for the output. 15. What is the ripple rejection performance of the TLV70218DBVR? The ripple rejection (PSRR) is typically 70dB at 100Hz. 16. Can the TLV70218DBVR be used in automotive applications? Yes, it can be used in automotive applications as it operates within the voltage range suitable for automotive systems. 17. What is the tolerance of the output voltage? The output voltage tolerance is typically ±2%. 18. Is the TLV70218DBVR available in other output voltages? No, the TLV70218DBVR is fixed at 1.8V output. Other models in the TLV702 series may offer different output voltages. 19. What is the efficiency of the TLV70218DBVR? The efficiency of the regulator depends on the input and output voltage. Since it’s a low-dropout regulator, it maintains good efficiency when the input is only slightly higher than the output. 20. Can the TLV70218DBVR be used in low-power IoT devices? Yes, it’s well-suited for low-power applications like IoT devices due to its low quiescent current and stable output.This detailed explanation includes all necessary pin functionality, as well as answers to common questions regarding the TLV70218DBVR. If you'd like more specific details or diagrams, feel free to ask!
