TPS54335ADRCR Detailed explanation of pin function specifications and circuit principle instructions

The part number TPS54335ADRCR refers to a product manufactured by Texas Instruments (TI). This part is a DC-DC buck converter designed to provide efficient Power conversion for various applications. It is part of the TPS54x family of devices, which are known for their high-performance switching regulators.

Package and Pinout Details:

Package Type: The TPS54335ADRCR comes in a VQFN-20 package (20 pins, very thin quad flat package).

Here's an overview of the pin functions for the TPS54335ADRCR package with all 20 pins detailed:

Pin Number Pin Name Function Description 1 VIN Input Voltage. This pin is used to connect the input power supply to the device. 2 SW Switch Node. This pin is connected to the external inductor and is used for switching. 3 PGND Power Ground. The ground pin for the power section of the IC. 4 PGND Power Ground (Duplicate). 5 BOOT Bootstrap capacitor . Used for the gate driver to provide the necessary voltage to drive the internal power MOSFETs . 6 SS/ENA Soft-Start and Enable. This pin sets the soft-start time and enables/disables the IC. A logic high on this pin enables the device, and it is used to set the ramp-up time of the output voltage. 7 VOUT Output Voltage. This is the regulated output voltage from the device. 8 FB Feedback. The voltage from the feedback network is connected here to regulate the output voltage. 9 VCC Power Supply for Internal Logic. Connect to a 3.3V or 5V rail depending on the system requirements. 10 COMP Compensation Pin. This is connected to the feedback loop for frequency compensation and stability. 11 TRK Tracking Pin. This is used for output voltage tracking with another power supply. 12 PGOOD Power Good. This open-drain output indicates whether the output voltage is within the valid range. 13 FB Feedback (Duplicate). 14 SW Switch Node (Duplicate). 15 PGND Power Ground (Duplicate). 16 PGND Power Ground (Duplicate). 17 VIN Input Voltage (Duplicate). 18 SW Switch Node (Duplicate). 19 PGND Power Ground (Duplicate). 20 VCC Power Supply for Internal Logic (Duplicate).

FAQs About TPS54335ADRCR

1. What is the primary function of the TPS54335ADRCR? The TPS54335ADRCR is a DC-DC buck converter designed to provide an efficient, regulated output voltage from a higher input voltage source.

2. What is the output voltage range of the TPS54335ADRCR? The output voltage is adjustable, typically ranging from 0.8V to 5.5V.

3. What type of package does the TPS54335ADRCR come in? The TPS54335ADRCR comes in a VQFN-20 package with 20 pins.

4. Can I use the TPS54335ADRCR in my battery-powered applications? Yes, this IC can be used in battery-powered systems where high efficiency is important.

5. What is the maximum input voltage for the TPS54335ADRCR? The maximum input voltage is 60V.

6. How do I set the output voltage for the TPS54335ADRCR? The output voltage can be set using a feedback network connected to the FB (feedback) pin.

**7. What is the function of the *BOOT* pin?** The BOOT pin is used to connect the bootstrap capacitor for the gate driver circuit to ensure proper switching of the internal MOSFETs.

**8. What does the *PGOOD* pin indicate?** The PGOOD pin is a logic output that indicates when the output voltage is within a valid range.

**9. What is the role of the *COMP* pin?** The COMP pin is used for frequency compensation to ensure stability in the feedback loop.

10. Can I synchronize the switching frequency of the TPS54335ADRCR? Yes, the device supports external synchronization through the SYNC pin.

**11. What is the purpose of the *SS/ENA* pin?** The SS/ENA pin is used to enable the device and control the soft-start function.

12. What is the typical output current capability of the TPS54335ADRCR? This IC can typically supply up to 3A of continuous output current.

13. How do I protect the TPS54335ADRCR from overcurrent? The device features overcurrent protection to prevent damage to the IC in case of excessive load current.

14. Is thermal protection included in the TPS54335ADRCR? Yes, it includes thermal shutdown protection to prevent overheating.

15. How does the TPS54335ADRCR handle voltage transients? It has an integrated under-voltage lockout to ensure stable operation even during voltage transients.

16. What type of Inductors should I use with the TPS54335ADRCR? Inductors with a value that matches the required output voltage and current specifications should be used, typically in the range of 4.7µH to 22µH.

17. What is the recommended input capacitor for the TPS54335ADRCR? A 10µF to 100µF ceramic input capacitor is recommended.

**18. How does the *TRK* pin function in multi-phase power systems?** The TRK pin is used to synchronize the output voltage ramp-up with another power supply in multi-phase applications.

19. Can the TPS54335ADRCR be used for high-speed data circuits? Yes, but proper layout and decoupling capacitors must be used to ensure signal integrity and minimize noise.

20. How can I improve the efficiency of the TPS54335ADRCR in my application? To optimize efficiency, ensure a proper layout, use low-ESR capacitors, and select the correct inductors based on the required power delivery.

Conclusion:

The TPS54335ADRCR by Texas Instruments is a versatile and high-performance DC-DC buck converter that can be used for a wide variety of power conversion applications, especially where efficiency and compact design are important. It offers a broad input voltage range, adjustable output voltage, and a comprehensive set of features, such as overcurrent and thermal protection.