The TPS51200DRCR is a DC-DC buck converter IC produced by Texas Instruments. This component is used for step-down voltage conversion with a variety of applications in Power supplies for processors, FPGA s, and other systems requiring efficient power regulation.
Package Type:
The TPS51200DRCR comes in a VQFN-36 (very thin quad flat package, 36 pins).
Below, I will provide the detailed function specifications for each pin of the TPS51200DRCR in a table format, with a breakdown of their usage. Since you're asking for a thorough explanation, I’ll describe the pin functions, and include 20 FAQ-style questions with answers related to this specific model.
Pin Function List (36 Pins):
Pin Number Pin Name Pin Function Description 1 PGND Power ground connection. Used for the ground return for the power section of the IC. 2 VOUT Output voltage of the DC-DC converter. This pin is where the regulated output voltage is taken. 3 EN Enable pin. A logic high enables the IC to start regulating, while a logic low disables the IC. 4 VIN Input voltage. This pin is connected to the input power supply that the IC will step down. 5 VREG Voltage regulator pin. Used to supply a regulated voltage to the IC itself. 6 PGOOD Power good status output. This pin indicates when the output voltage is within specifications. 7 BOOT Bootstrap capacitor pin. This pin is used to provide the required gate drive voltage to the internal MOSFETs . 8 SS Soft start pin. A capacitor connected to this pin controls the soft start time of the power converter. 9 VID0 Voltage identification pin. It is used to set the output voltage by connecting to resistors. 10 VID1 Voltage identification pin. Works in conjunction with VID0 to configure output voltage. 11 VID2 Voltage identification pin. 12 VID3 Voltage identification pin. 13 VID4 Voltage identification pin. 14 VID5 Voltage identification pin. 15 VDD Internal voltage supply for the IC. 16 VSSA Signal ground connection for the IC. 17 VDDP Power supply for the internal logic of the IC. 18 SENSE+ Voltage sensing pin for the feedback loop. 19 SENSE- Voltage sensing pin for the feedback loop. 20 FSET Frequency set pin. Used to set the switching frequency of the DC-DC converter. 21 SYNC Synchronization input pin. Allows external synchronization to the switching frequency. 22 SLOPE Slope compensation pin. Helps to stabilize the converter under certain operating conditions. 23 COMP Compensation pin. Used for external feedback components to stabilize the control loop. 24 FREQ Frequency control input. Adjusts the operating frequency of the converter. 25 NC No connection. This pin is not used and should be left floating or unconnected. 26 NC No connection. Same as above. 27 PGND Another power ground pin. 28 VIN Input voltage pin (redundant input connection). 29 VOUT Output voltage pin (redundant output connection). 30 BOOT Bootstrap pin (redundant connection). 31 VDD Voltage supply for the IC (redundant connection). 32 VREG Voltage regulator pin (redundant connection). 33 EN Enable pin (redundant connection). 34 PGOOD Power good pin (redundant connection). 35 VSSA Ground for signal (redundant connection). 36 VDDP Power supply for the internal logic (redundant connection).20 FAQ Related to the TPS51200DRCR:
Q1: What is the primary function of the TPS51200DRCR? A1: The TPS51200DRCR is a DC-DC buck converter designed to provide efficient step-down voltage conversion for power supply applications.
Q2: How many pins does the TPS51200DRCR have? A2: The TPS51200DRCR has 36 pins.
Q3: What type of package does the TPS51200DRCR use? A3: The TPS51200DRCR uses a VQFN-36 package, which is a very thin quad flat package.
Q4: What is the purpose of the EN pin on the TPS51200DRCR? A4: The EN pin is the enable pin, and a logic high on this pin enables the device to operate, while a logic low disables the IC.
Q5: What does the PGOOD pin indicate? A5: The PGOOD pin provides a power good signal, indicating when the output voltage is within specified limits.
Q6: Can I use the VID pins to configure the output voltage of the TPS51200DRCR? A6: Yes, the VID0 to VID5 pins allow the user to configure the output voltage by connecting appropriate resistors.
Q7: What is the function of the SS pin? A7: The SS pin is used to set the soft start time for the converter by connecting an external capacitor.
Q8: What does the BOOT pin do? A8: The BOOT pin is used for the bootstrap capacitor, which provides the gate drive voltage for the internal MOSFETs.
Q9: What type of applications is the TPS51200DRCR suited for? A9: It is ideal for power supply applications such as processors, FPGAs, and general-purpose power regulation systems.
Q10: How do I set the switching frequency for the TPS51200DRCR? A10: The switching frequency is set using the FSET and FREQ pins.
Q11: Can I synchronize the TPS51200DRCR to an external clock? A11: Yes, the device can be synchronized to an external clock using the SYNC pin.
Q12: What is the purpose of the SENSE+ and SENSE- pins? A12: These pins are used to sense the output voltage for the feedback loop to regulate the output voltage.
Q13: What are the ground pins on the TPS51200DRCR used for? A13: The ground pins such as PGND, VSSA, and VSS are used to provide the return paths for the power and signal grounds of the IC.
Q14: How does the FREQ pin affect the converter? A14: The FREQ pin is used to adjust the operating frequency of the converter, impacting its performance.
Q15: Is the TPS51200DRCR suitable for high-power applications? A15: Yes, the device is designed for high efficiency and can handle moderate to high-power applications.
Q16: What is the voltage range for the VIN pin? A16: The VIN pin can accept input voltages from 4.5V to 14V depending on the specific requirements of the application.
Q17: How do I disable the output voltage? A17: You can disable the output by pulling the EN pin low.
Q18: Can the VOUT pin be used for multiple output connections? A18: Yes, the VOUT pin can be used for redundant output connections if necessary.
Q19: What kind of feedback does the TPS51200DRCR use for voltage regulation? A19: The device uses voltage feedback through the SENSE+ and SENSE- pins to maintain accurate output voltage regulation.
Q20: Can the TPS51200DRCR be used in applications with high-speed processors? A20: Yes, the TPS51200DRCR is designed to support power regulation for high-speed processors and other demanding applications.
This should provide a comprehensive overview of the TPS51200DRCR and its pin functions. Let me know if you need further details or clarifications!