The model "TPS7B8150QDGNRQ1" is a part from Texas Instruments (TI). It's a part of the TPS7B8150 series, which is a highly-integrated, low-noise, and high-performance voltage regulator.
Package Type and Pin Count:
Package: QDGNRQ1 (This corresponds to a QFN-36 package with 36 pins.) Detailed Pin Function Description for Each Pin:Below is the detailed explanation of the pin functions for the TPS7B8150QDGNRQ1 in the QFN-36 package:
Pin Number Pin Name Pin Function Description 1 EN Enable pin. A logic high enables the device, while a logic low disables it. 2 VIN Input Voltage pin. This pin is used to provide the input Power to the voltage regulator. 3 PGND Power Ground. Connect this pin to the ground plane. 4 VOUT Output Voltage. The regulated output voltage is provided here. 5 PGND Power Ground. Another ground pin for the power section. 6 VOUT_FB Feedback Pin for the output voltage. This pin is used to adjust the output voltage in certain configurations. 7 SGND Signal Ground. Connect this pin to the signal ground. 8 VBIAS Bias Voltage pin. Provides biasing for internal circuits of the device. 9 NC No Connect. This pin is not connected to the internal circuit. 10 PGND Power Ground pin. 11 VOUT Regulated Output. The output voltage of the regulator is available at this pin. 12 NC No Connect. Not internally connected. 13 NC No Connect. Not used for internal connections. 14 VOUT2 Second Output Voltage pin. This pin can provide a second regulated output voltage in certain designs. 15 NC No Connect. 16 GND Ground pin. This is the reference ground for the system. 17 VOUT1_FB Feedback Pin for the first output voltage. Used to control and set the output voltage. 18 VBIAS Bias Voltage pin. Provides biasing for the regulator. 19 VIN Input Voltage. This is the input supply voltage pin for the regulator. 20 VOUT Regulated Output pin for the second output voltage. 21 SGND Signal Ground. Connect to signal ground. 22 VOUT2_FB Feedback Pin for the second output voltage. This is used to set and control the second output voltage. 23 VREF Reference Voltage. Provides a stable reference voltage for the regulator. 24 NC No Connect. Pin not used. 25 NC No Connect. Pin not internally connected. 26 VOUT1 First Output Voltage. Regulated output voltage available at this pin. 27 GND Ground pin. Reference ground for the regulator. 28 VOUT Output Voltage pin. 29 VOUT_FB Feedback Pin for the output voltage. Used for the output voltage regulation and feedback. 30 EN Enable Pin. Used to enable or disable the device. 31 VIN Input Voltage Pin. Provides input power to the regulator. 32 GND Ground Pin. Connect this pin to the system ground. 33 NC No Connect. Not connected internally. 34 VOUT Output Voltage Pin. Provides the regulated output voltage. 35 GND Ground Pin. Connect this pin to the ground plane. 36 VOUT_FB Feedback Pin. This pin is used for voltage regulation feedback on the output.Pin Function FAQ (20 Common Questions):
Q: What is the function of the EN pin? A: The EN pin (Pin 1) is used to enable or disable the device. When driven high, the device is enabled; when driven low, it is disabled.
Q: What does the VIN pin do? A: The VIN pin (Pin 2 and Pin 19) is the input voltage pin. It supplies power to the voltage regulator.
Q: What is the significance of PGND pins? A: PGND pins (Pin 3, Pin 5, Pin 10) are used for power ground and should be connected to the ground plane for proper current return.
Q: What is VOUT used for? A: VOUT (Pin 4, Pin 11, Pin 20, Pin 34) is where the regulated output voltage is provided.
Q: What is the function of the VOUTFB pin? A: The VOUTFB pin (Pin 6, Pin 29) is the feedback pin used for regulating the output voltage. It is typically part of a voltage divider to set the desired output voltage.
Q: Why is there a VBIAS pin? A: The VBIAS pin (Pin 8, Pin 18) provides a bias voltage to power the internal circuitry of the device.
Q: What does the SGND pin represent? A: The SGND pin (Pin 7, Pin 21) is the signal ground pin, which should be connected to the signal ground in the system.
Q: What is the purpose of NC pins? A: NC pins (Pin 9, Pin 12, Pin 13, Pin 15, Pin 24, Pin 25, Pin 33) are "No Connect" pins, meaning they are not connected to the internal circuit and have no functional role.
Q: How do I use the VOUT1FB pin? A: VOUT1FB (Pin 17) is used for feedback to regulate the first output voltage. This pin should be connected to a feedback network to set the desired output voltage.
Q: What does the VREF pin do? A: The VREF pin (Pin 23) provides a stable reference voltage for the regulator.
Q: Is it necessary to use all pins of the TPS7B8150QDGNRQ1? A: No, only the necessary pins for your design need to be used. Unused pins such as NC can be left unconnected.
Q: How do I configure the output voltages of this device? A: The output voltages can be configured by adjusting the feedback networks connected to VOUT_FB pins.
Q: What should I do with the ground pins (GND)? A: All GND pins (Pin 16, Pin 27, Pin 32, Pin 35) should be connected to the system ground plane.
Q: Can I use the EN pin to control the output voltage directly? A: Yes, the EN pin can be used to enable or disable the regulator, thereby controlling the output voltage.
Q: Can I use multiple output voltages from this regulator? A: Yes, the TPS7B8150QDGNRQ1 can provide multiple output voltages (Pin 11, Pin 20, Pin 26).
Q: Is there an over-voltage protection feature on this regulator? A: Yes, this device is equipped with over-voltage protection to prevent damage in case of excessive voltage.
Q: Can I connect the VIN and VOUT pins directly to a power source and load? A: Yes, but ensure that all components and pins are properly connected to the system ground and feedback network for stable operation.
Q: How can I minimize noise in the output? A: Proper decoupling capacitor s should be placed near the input and output pins to reduce noise.
Q: What is the maximum input voltage for the TPS7B8150QDGNRQ1? A: The maximum input voltage is typically specified in the datasheet and should be followed to prevent damage.
Q: Does the TPS7B8150QDGNRQ1 have thermal shutdown protection? A: Yes, the device includes thermal shutdown protection to prevent overheating.
This detailed description of the pins, functions, and FAQs should provide you with an in-depth understanding of the TPS7B8150QDGNRQ1 voltage regulator module . Let me know if you need further clarifications!