TPS767D301PWPR Detailed explanation of pin function specifications and circuit principle instructions

The part number " TPS767D301PWP R" corresponds to a specific voltage regulator manufactured by Texas Instruments, a well-known semiconductor company. It is part of their Power management IC (integrated circuit) product family.

This component is specifically a Low Dropout (LDO) Regulator designed for various power management applications.

Package Type:

The "PWPR" suffix in the part number indicates that the part is housed in a PowerPAD™ package. Specifically, it is a 16-pin TSSOP (Thin Shrink Small Outline Package).

Pin Function Specifications:

For the detailed explanation of the pin functions, here is an overview of the 16 pins of the TPS767D301PWPR LDO voltage regulator:

Pin Number Pin Name Pin Function Description 1 IN Input Voltage Pin: Provides the input voltage to the LDO regulator. It is connected to the source power. 2 GND Ground Pin: Common reference for all signals and power. 3 OUT Output Voltage Pin: Delivers the regulated output voltage to the load. 4 FB Feedback Pin: Used to sense the output voltage and feedback into the internal regulation loop. 5 PG Power Good Pin: Indicates when the output voltage is within specification. It provides a logic high when the output is within regulation. 6 EN Enable Pin: Used to enable or disable the regulator output. A logic high on this pin enables the output. 7 NC No Connect Pin: This pin is not internally connected to any circuitry and can be left floating or tied to ground. 8 NC No Connect Pin: This pin is also not connected to any internal circuits. 9 NC No Connect Pin: Unused and not connected internally. 10 NC No Connect Pin: This pin is not used in the internal circuitry. 11 NC No Connect Pin: This pin has no internal connection. 12 NC No Connect Pin: Not internally connected. 13 NC No Connect Pin: Not used by the internal circuitry. 14 NC No Connect Pin: This pin does not have any internal functionality. 15 NC No Connect Pin: Not connected to internal circuits. 16 NC No Connect Pin: Left unconnected internally.

Circuit Principle Overview:

The TPS767D301PWPR operates as a Low Dropout Regulator (LDO). It regulates the input voltage to a lower output voltage, which is vital for many electronic circuits that require a stable supply. The main advantage of an LDO is that it can provide stable output even when the input voltage is just slightly higher than the desired output voltage, thus the "low dropout" characteristic. This is particularly useful for applications where the power supply voltage is constrained and must be close to the regulated value.

The LDO operates with the following general principle:

Input Power: The input voltage (V_IN) is supplied to the regulator. Voltage Regulation: The LDO's internal circuit ensures that the output voltage (V_OUT) is regulated based on the feedback received at the FB pin. Feedback Mechanism: The output voltage is sensed and sent to the feedback loop through the FB pin, maintaining a stable voltage. Power Good Monitoring: The Power Good pin (PG) indicates whether the output voltage is stable and within desired specifications. Enable Pin: When the Enable pin is high, the output is enabled. If the pin is low, the output is disabled.

FAQ (Frequently Asked Questions) for TPS767D301PWPR:

Q: What is the input voltage range for TPS767D301PWPR? A: The TPS767D301PWPR operates with an input voltage range from 2.5V to 6V.

Q: Can I use TPS767D301PWPR for 5V systems? A: Yes, TPS767D301PWPR is suitable for 5V systems as long as the input voltage is within the 2.5V to 6V range.

Q: What is the output voltage of TPS767D301PWPR? A: The TPS767D301PWPR provides a regulated output of 3.0V.

Q: What is the output current capability of TPS767D301PWPR? A: The TPS767D301PWPR can deliver up to 500mA of output current.

Q: What type of package is the TPS767D301PWPR available in? A: The TPS767D301PWPR is available in a 16-pin TSSOP package.

Q: Does TPS767D301PWPR have a Power Good feature? A: Yes, it has a Power Good (PG) pin that indicates whether the output voltage is within regulation.

Q: What is the purpose of the Enable (EN) pin? A: The EN pin is used to enable or disable the output. A logic high enables the output, while a logic low disables it.

Q: How does the feedback pin (FB) work in TPS767D301PWPR? A: The FB pin senses the output voltage and provides feedback to the internal regulation loop to maintain a stable output.

Q: Can TPS767D301PWPR operate at low dropout voltages? A: Yes, TPS767D301PWPR is a Low Dropout Regulator (LDO) and operates with a very small voltage difference between input and output.

Q: Can I use TPS767D301PWPR for mobile devices? A: Yes, this LDO regulator is suitable for use in mobile devices that require efficient power management.

Q: How is the thermal performance of TPS767D301PWPR? A: TPS767D301PWPR offers excellent thermal performance, with a thermal shutdown feature to protect against overheating.

Q: What is the quiescent current of TPS767D301PWPR? A: The quiescent current is typically 50μA, which is very low for an LDO regulator.

Q: Can TPS767D301PWPR be used in automotive applications? A: Yes, it can be used in automotive applications as long as the input voltage and thermal limits are respected.

Q: How stable is the output voltage of TPS767D301PWPR? A: The output voltage is highly stable, with low dropout voltage and excellent load and line regulation.

Q: Does TPS767D301PWPR require external capacitor s? A: Yes, external capacitors are recommended for optimal performance, typically on the input and output pins.

Q: What is the typical dropout voltage for TPS767D301PWPR? A: The typical dropout voltage is 50mV at 500mA load current.

Q: How does the TPS767D301PWPR improve energy efficiency? A: It improves energy efficiency by operating with a low dropout voltage, reducing power loss in the regulator.

Q: What are the protections available in TPS767D301PWPR? A: TPS767D301PWPR includes overcurrent protection, thermal shutdown, and undervoltage lockout features.

Q: What is the maximum output voltage tolerance? A: The output voltage tolerance is typically ±2%, ensuring accurate regulation.

Q: Can TPS767D301PWPR be used for powering microcontrollers? A: Yes, it is ideal for powering microcontrollers and other low-power digital devices due to its stable output voltage and low quiescent current.

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