The part number "TPS54060ADGQR" belongs to Texas Instruments (TI), a well-known brand in the field of electronic components. The TPS54060 is a step-down (buck) DC-DC converter that is designed to provide high efficiency and is used for converting higher voltages to lower ones. The ADGQR suffix indicates the package type and grade.
Let’s break down your request into the key areas:
1. Package Type and Pin Count
The TPS54060ADGQR is packaged in a VQFN-20 package. This means that it has 20 pins, which are laid out in a 5x5 mm square grid with a 0.5mm pitch.
2. Pin Function List for TPS54060ADGQR
Below is the detailed pin function description of the 20 pins of the TPS54060ADGQR:
Pin Number Pin Name Pin Function Description 1 VIN Input Voltage Pin. The input voltage source for the DC-DC converter. Typically connects to the Power supply. 2 VOSENSE Voltage Output Sense Pin. Used for feedback to regulate the output voltage. 3 PGND Power Ground Pin. Connect to the system ground. 4 BOOT Bootstrapped capacitor Pin. Used for powering the high-side MOSFET gate. 5 SW Switch Node Pin. The output of the internal MOSFET and the inductor connects here. 6 EN Enable Pin. A logic high enables the converter operation, and a logic low disables it (typically tied to logic). 7 FB Feedback Pin. Used to set the output voltage with an external resistor divider. 8 COMP Compensation Pin. Used to set the feedback loop compensation, affecting stability and transient response. 9 SS Soft Start Pin. Used to control the ramp-up of the output voltage during startup to minimize inrush current. 10 RT Resistor to set the switching frequency. The value of the resistor between this pin and ground sets the frequency. 11 PG Power Good Output. A logic signal indicating if the output voltage is within the regulated range. 12 SYNC Synchronization Pin. Used to synchronize the switching frequency to an external clock source. 13 VOUT Output Voltage Pin. The regulated output of the DC-DC converter. 14 LDO LDO Output Pin. This provides a low-dropout regulator output for external circuitry. 15 ISENSE+ Current Sense Positive Pin. Used to sense the inductor current for current-mode control. 16 ISENSE- Current Sense Negative Pin. Used in conjunction with ISENSE+ to sense inductor current. 17 GND Ground Pin. This is the reference ground for the internal circuitry. 18 VREF Reference Voltage Pin. Outputs a stable voltage for the internal reference circuitry. 19 VOUT_SENSE Voltage Output Sense Pin. Used for accurate feedback voltage sensing. 20 PGND Power Ground Pin (alternate). Connected to the system ground.3. Pin Function FAQ - Frequently Asked Questions
Here are 20 FAQs that help explain the usage and features of the TPS54060ADGQR:
Q: What is the maximum input voltage for TPS54060ADGQR? A: The maximum input voltage for the TPS54060ADGQR is 60V.
Q: Can the TPS54060ADGQR operate without an external inductor? A: No, the TPS54060ADGQR requires an external inductor to store energy and smooth out the output voltage.
Q: What type of control scheme does the TPS54060ADGQR use? A: The TPS54060 uses current-mode control to regulate the output voltage efficiently.
Q: How do I enable the TPS54060ADGQR? A: You enable the TPS54060ADGQR by applying a logic high to the EN pin.
**Q: What is the role of the *FB* pin?** A: The FB pin is used to provide feedback to the IC, ensuring that the output voltage stays regulated according to the desired set point.
Q: Can I use the TPS54060ADGQR in a parallel configuration for higher current? A: Yes, but special care must be taken to synchronize multiple ICs for current sharing.
Q: What is the recommended inductor value for the TPS54060ADGQR? A: The recommended inductor value ranges from 2.2µH to 10µH, depending on your output voltage and current requirements.
**Q: What is the *PG* pin used for?** A: The PG pin is a Power Good indicator. It will signal high when the output voltage is within regulation.
Q: Can I adjust the switching frequency of the TPS54060ADGQR? A: Yes, by selecting an appropriate resistor to place between the RT pin and ground, you can set the switching frequency.
Q: What is the maximum output current of the TPS54060ADGQR? A: The TPS54060ADGQR can output a maximum current of 6A.
Q: How does the TPS54060ADGQR handle thermal shutdown? A: The TPS54060ADGQR includes thermal shutdown protection, which will disable the output if the junction temperature exceeds a certain threshold.
**Q: How do I use the *SYNC* pin?** A: The SYNC pin is used for synchronization with an external clock signal to lock the switching frequency to that clock.
**Q: What type of capacitor should be used at the *BOOT* pin?** A: The BOOT pin typically requires a 0.1µF ceramic capacitor to maintain proper gate drive voltage.
**Q: What is the purpose of the *SS* pin?** A: The SS pin controls the soft start function, which limits the inrush current during power-up.
Q: How do I set the output voltage for the TPS54060ADGQR? A: The output voltage is set using a resistor divider connected between the FB pin and ground.
Q: What is the typical efficiency of the TPS54060ADGQR? A: The efficiency can exceed 90%, depending on the input voltage, output voltage, and load conditions.
Q: Can the TPS54060ADGQR operate in a negative voltage configuration? A: No, the TPS54060ADGQR is designed for step-down (buck) conversion to a positive output voltage.
**Q: How should I connect the *VOSENSE* pin?** A: The VOSENSE pin should be connected to the output voltage rail to provide a reference for voltage feedback.
**Q: What is the *LDO* pin used for?** A: The LDO pin provides an internal low-dropout voltage regulator output that can be used to power auxiliary circuitry.
Q: Can I use the TPS54060ADGQR in automotive applications? A: Yes, the TPS54060ADGQR is designed with automotive-grade voltage and temperature tolerances and can be used in automotive applications.
4. Conclusion
The TPS54060ADGQR is a high-efficiency buck regulator from Texas Instruments with 20 pins. Each pin plays a critical role in the operation of the device, and understanding each function is important for its proper application. The detailed FAQ section provides more context about common questions related to the device.