The part number TPS7B6950QDBVRQ1 belongs to Texas Instruments (TI). It is a high-performance, low-noise, low-dropout (LDO) voltage regulator designed for use in various sensitive applications requiring precise Power regulation, such as in communication, medical, industrial, and automotive applications.
Package and Pinout:
Package: The TPS7B6950QDBVRQ1 comes in a QFN-20 package. Pin Count: The part has 20 pins.Pin Function Specification:
Here is the detailed description of each pin function:
Pin Number Pin Name Pin Function Description 1 GND Ground pin. Connect to system ground. 2 VIN Input voltage pin. Apply the input voltage to this pin. Typically ranges from 2.5V to 6V. 3 VOUT Output voltage pin. This pin provides the regulated output voltage based on the set reference voltage. 4 EN Enable pin. Apply a logic-high to enable the regulator. If tied low, the device will be disabled. 5 PGND Power ground pin. Connect to the ground of the power section. 6 SENSE+ Positive feedback sense pin. Used to provide accurate feedback for voltage regulation. 7 SENSE- Negative feedback sense pin. Used in conjunction with SENSE+ for accurate voltage regulation. 8 SS Soft-start pin. A capacitor placed on this pin controls the ramp-up time of the output voltage. 9 FB Feedback pin. Connect a resistor divider between this pin and the output to set the output voltage. 10 VREF Reference voltage output. This pin provides an internal reference voltage used for regulation purposes. 11 VDD Positive power supply input pin. Often tied to a more stable voltage rail within the circuit. 12 VOFF Output turn-off pin. Used for controlling the output voltage during shutdown or reset conditions. 13 PWM Pulse width modulation input/output for dynamic control. 14 DNC Do Not Connect pin. Typically not used, must not be connected in the circuit. 15 OVP Over-voltage protection pin. Used to monitor and control the over-voltage protection mechanism. 16 TSD Thermal Shutdown pin. This pin will trigger shutdown if the device overheats, protecting the internal circuits. 17 ADJ Adjustable output pin. Used when adjusting the output voltage to a specific value. 18 VDD2 Second input voltage pin (for dual supply configurations or power sequencing). 19 SYNC Synchronization input for controlling the switching frequency in applications with external timing needs. 20 NC No Connection pin. This pin is unused and should be left unconnected.Pin Summary Table
Pin Number Pin Name Description 1 GND Ground. Connect to the system ground. 2 VIN Input voltage (2.5V to 6V). 3 VOUT Regulated output voltage. 4 EN Enable. Logic-high enables, logic-low disables the device. 5 PGND Power ground. 6 SENSE+ Positive feedback sense for voltage regulation. 7 SENSE- Negative feedback sense for voltage regulation. 8 SS Soft-start control pin. 9 FB Feedback for setting output voltage with a resistor divider. 10 VREF Internal reference voltage. 11 VDD Positive power supply input. 12 VOFF Output turn-off control pin. 13 PWM Pulse-width modulation control for dynamic output. 14 DNC Do not connect. 15 OVP Over-voltage protection. 16 TSD Thermal shutdown. Protects against overheating. 17 ADJ Adjustable output voltage configuration. 18 VDD2 Second input voltage (dual-supply configurations). 19 SYNC Synchronization input. 20 NC No connection.FAQ for TPS7B6950QDBVRQ1
Q1: What is the input voltage range for TPS7B6950QDBVRQ1?
A1: The input voltage range for TPS7B6950QDBVRQ1 is typically 2.5V to 6V.Q2: What is the output voltage range of TPS7B6950QDBVRQ1?
A2: The output voltage range is typically 0.8V to 5.5V, depending on the configuration and external components used.Q3: What type of package is the TPS7B6950QDBVRQ1 available in?
A3: The part comes in a 20-pin QFN package.Q4: Can the output voltage be adjusted on TPS7B6950QDBVRQ1?
A4: Yes, the output voltage can be adjusted by using the FB pin with an external resistor divider.Q5: How does the TPS7B6950QDBVRQ1 manage thermal shutdown?
A5: The device features an integrated thermal shutdown (TSD) function that will disable the regulator if the internal temperature exceeds a safe threshold.Q6: How can the soft-start behavior of the TPS7B6950QDBVRQ1 be controlled?
A6: The soft-start behavior is controlled through the SS pin, where an external capacitor can be placed to manage the ramp-up time of the output voltage.Q7: What is the purpose of the SENSE+ and SENSE- pins?
A7: The SENSE+ and SENSE- pins are used for precise feedback regulation of the output voltage.Q8: How does the TPS7B6950QDBVRQ1 protect against over-voltage?
A8: The device includes an over-voltage protection (OVP) pin, which monitors the output voltage and ensures it does not exceed the set threshold.Q9: What is the maximum current output of the TPS7B6950QDBVRQ1?
A9: The device can supply up to 1A of continuous output current.Q10: What is the role of the EN pin in the TPS7B6950QDBVRQ1?
A10: The EN pin is used to enable or disable the regulator. A logic-high enables the regulator, while a logic-low disables it.Q11: Can the TPS7B6950QDBVRQ1 operate with a dual power supply configuration?
A11: Yes, the device supports dual input configurations, with an additional VDD2 pin for a secondary power supply input.Q12: What is the function of the NC pin?
A12: The NC pin is not connected to any internal circuitry and should be left unconnected.Q13: How does the TPS7B6950QDBVRQ1 regulate its output voltage?
A13: The output voltage is regulated through a feedback loop using the FB pin and external resistors.Q14: What is the purpose of the SYNC pin?
A14: The SYNC pin is used to synchronize the operation of the TPS7B6950QDBVRQ1 with an external clock signal for frequency control.Q15: Is the TPS7B6950QDBVRQ1 suitable for automotive applications?
A15: Yes, the TPS7B6950QDBVRQ1 is automotive-grade, designed to meet the stringent requirements of automotive power systems.Q16: How does the TPS7B6950QDBVRQ1 handle input voltage variations?
A16: The device uses an integrated low-dropout (LDO) regulator that ensures stable output even with small variations in input voltage.Q17: Can the TPS7B6950QDBVRQ1 be used in medical applications?
A17: Yes, the TPS7B6950QDBVRQ1 is designed for high-precision applications, including medical systems requiring low-noise power regulation.Q18: What is the recommended operating temperature range for the TPS7B6950QDBVRQ1?
A18: The recommended operating temperature range is -40°C to +125°C.Q19: Does the TPS7B6950QDBVRQ1 support low-noise operation?
A19: Yes, the device is designed with low-noise features, making it suitable for noise-sensitive applications.Q20: How can I improve the transient response of the TPS7B6950QDBVRQ1?
A20: Transient response can be improved by placing an appropriate output capacitor at the VOUT pin to stabilize the voltage during load transients.This description provides a comprehensive overview of the TPS7B6950QDBVRQ1 with all pin functions and the most common questions about the part.
