The model number "TPS561201DDCR" belongs to Texas Instruments (TI), a well-known semiconductor manufacturer. It is a DC-DC buck converter typically used for Power management solutions.
Packaging Information:
Package Type: VQFN (Very Thin Quad Flat No-lead) Package Size: 5 mm x 5 mm Pin Count: 28 pinsPin Function Specifications for TPS561201DDCR:
The TPS561201DDCR features a 28-pin VQFN package. Below is a detailed pinout description for each of these 28 pins:
Pin Number Pin Name Pin Type Function Description 1 VOUT Output Output voltage pin, providing the regulated voltage to the load. 2 FB Input Feedback pin, used to set the output voltage via a resistive divider. 3 EN Input Enable pin, logic-high enables the regulator, logic-low disables it. 4 PGND Ground Power ground, connected to the system ground. 5 COMP Input Compensation pin, used to connect a network for stabilizing the control loop. 6 SW Output Switch pin, connects to the inductor to transfer energy during switching cycles. 7 VIN Input Input voltage pin, provides power to the converter from the source. 8 VDD Power Supply pin for internal circuitry of the device. 9 NC No Connect This pin is not connected to any internal circuitry and is typically left floating. 10 PG Output Power Good output, indicating if the output voltage is within the acceptable range. 11 SS Input Soft start pin, controls the ramp-up time for the output voltage. 12 BOOT Input Bootstrap pin, provides a voltage source for the high-side MOSFET driver. 13 NC No Connect Not connected internally. 14 NC No Connect Not connected internally. 15 ILIM Input Current limit pin, sets the overcurrent protection threshold. 16 VOUT1 Output An additional output for specific applications (if present). 17 NC No Connect Not connected internally. 18 NC No Connect Not connected internally. 19 NC No Connect Not connected internally. 20 NC No Connect Not connected internally. 21 NC No Connect Not connected internally. 22 NC No Connect Not connected internally. 23 NC No Connect Not connected internally. 24 NC No Connect Not connected internally. 25 NC No Connect Not connected internally. 26 NC No Connect Not connected internally. 27 NC No Connect Not connected internally. 28 NC No Connect Not connected internally.FAQs (Frequently Asked Questions) for TPS561201DDCR:
1. What is the input voltage range of the TPS561201DDCR? Answer: The TPS561201DDCR operates with an input voltage range from 4.5V to 60V.
2. What is the maximum output current of the TPS561201DDCR? Answer: The maximum output current is 2A.
3. What is the typical output voltage range? Answer: The typical output voltage range is from 0.8V to 15V.
4. How does the Enable (EN) pin work? Answer: The Enable (EN) pin, when driven high, enables the regulator; when driven low, the regulator is disabled.
5. Can the TPS561201DDCR be used in a step-up (boost) configuration? Answer: No, the TPS561201DDCR is designed as a buck converter for step-down voltage regulation.
6. What is the recommended operating temperature range for the TPS561201DDCR? Answer: The recommended operating temperature range is -40°C to +125°C.
7. What is the function of the SW pin? Answer: The SW pin connects to the inductor and is responsible for switching the voltage from the input to the output.
8. Is the TPS561201DDCR suitable for automotive applications? Answer: Yes, it is rated for automotive applications and can handle input voltages from 4.5V to 60V.
9. What is the purpose of the PG (Power Good) pin? Answer: The PG pin is a logic output that indicates if the output voltage is within the expected range.
10. How does the TPS561201DDCR manage thermal protection? Answer: The device includes thermal shutdown protection to prevent damage in case of overheating.
11. Can the TPS561201DDCR be used for powering microcontrollers? Answer: Yes, it is ideal for powering microcontrollers and other sensitive digital components requiring a stable low voltage.
12. What is the soft start function of the TPS561201DDCR? Answer: The soft start feature helps to limit inrush current by gradually ramping up the output voltage.
13. What is the function of the FB pin? Answer: The FB pin is used for voltage feedback to regulate the output voltage by comparing it to the reference voltage.
14. Can the TPS561201DDCR be used in a non-isolated power supply design? Answer: Yes, the TPS561201DDCR is designed for non-isolated buck converter applications.
15. What is the significance of the COMP pin? Answer: The COMP pin is used to connect a compensation network that stabilizes the feedback loop.
16. What is the bootstrapping function provided by the BOOT pin? Answer: The BOOT pin provides a voltage to the high-side MOSFET driver to ensure proper switching of the MOSFETs .
17. How do I set the output voltage of the TPS561201DDCR? Answer: The output voltage is set using a resistive voltage divider connected to the FB pin.
18. Can the TPS561201DDCR be used in low-power applications? Answer: Yes, it features a low quiescent current, making it suitable for battery-powered applications.
19. What is the typical efficiency of the TPS561201DDCR? Answer: The typical efficiency is up to 95%, depending on input voltage, output voltage, and load conditions.
20. How can I troubleshoot if the output voltage is incorrect? Answer: Check the feedback network, ensure proper input voltage, verify the Enable pin, and check for overheating or overcurrent conditions.
This detailed explanation provides the comprehensive pinout description and answers to some common questions about the TPS561201DDCR. If you need more specific guidance or additional clarification, feel free to ask!
