The model "TPS63000DRCR" is from Texas Instruments. It is a high-efficiency step-up/step-down converter, part of the TPS63000 series. This model typically comes in a 10-pin QFN (Quad Flat No-lead) package, though the pin count can vary with different packaging.
Here is a detailed breakdown of the functions of each pin for the TPS63000DRCR in a QFN package:
Pin Function Description
Pin Number Pin Name Pin Type Description 1 IN+ Input This pin is connected to the positive voltage input for the DC-DC converter. 2 IN- Input This pin is connected to the negative voltage input. 3 GND Ground This pin is the ground connection. 4 VOUT Output This pin provides the regulated output voltage from the DC-DC converter. 5 EN Control This pin is used to enable or disable the device. A high level enables the device; a low level disables the device. 6 VSTBY Control This pin is for standby mode. When low, the device enters standby mode, reducing Power consumption. 7 FB Feedback This pin is connected to the feedback resistor network and regulates the output voltage by controlling the internal circuitry. 8 SW Switch This pin is connected to the internal switching node that drives the inductor in the converter. 9 PGND Power Ground This pin is the ground for the power section of the converter. 10 NC No Connection This pin does not connect to any internal function and is left floating or unused.Pin Count and Detailed Function
The TPS63000DRCR in its QFN-10 package has 10 pins, and each pin has specific functions to support the operation of the step-up/step-down converter. It offers flexibility in various voltage and power requirements, making it highly versatile for powering different types of electronic systems.
20 FAQ for TPS63000DRCR (in QFN-10 Package)
Q: What is the function of pin 1, IN+? A: Pin 1 (IN+) is the input voltage pin that connects to the positive side of the power supply input. This is where the power comes into the device.
Q: Can I connect the IN- pin to a ground in my circuit? A: Yes, Pin 2 (IN-) is typically connected to the negative terminal of your input supply, acting as the reference for the input voltage.
Q: What is the purpose of pin 3, GND? A: Pin 3 (GND) is the ground pin of the device, providing the reference for the whole system and ensuring proper operation of the internal circuitry.
Q: How does pin 4, VOUT, work in the circuit? A: Pin 4 (VOUT) is the output pin where the regulated output voltage is delivered. It supplies the voltage to the load.
Q: What is the EN pin used for? A: Pin 5 (EN) is the enable pin. When this pin is high, the device is enabled; when low, it is disabled, and the converter stops working.
Q: What happens when pin 6, VSTBY, is set to low? A: Pin 6 (VSTBY) is used to put the device into standby mode, reducing current consumption when the device is not in active use.
Q: What is the function of the FB pin? A: Pin 7 (FB) is the feedback pin that controls the output voltage by comparing it with an internal reference voltage. It is used in the feedback loop of the converter.
Q: Can I connect an external inductor to the SW pin? A: Yes, Pin 8 (SW) is where the inductor is connected. It is the switching node for the step-up or step-down conversion process.
Q: What does PGND pin do? A: Pin 9 (PGND) is the power ground, which is used for the power stage of the converter and must be connected to the system ground.
Q: Is pin 10, NC, needed in my circuit design? A: No, Pin 10 (NC) is not connected internally and has no functional role in the circuit. It is typically unused.
Q: What is the typical input voltage range for TPS63000DRCR? A: The input voltage range for the TPS63000DRCR is typically from 1.8V to 5.5V.
Q: Can I use the device to step up voltage? A: Yes, the TPS63000DRCR can step up or step down the voltage, making it versatile for different voltage conversion needs.
Q: Does the TPS63000DRCR have an overvoltage protection feature? A: Yes, it includes built-in overvoltage protection to prevent damage if the output voltage exceeds a safe threshold.
Q: How do I disable the TPS63000DRCR? A: To disable the device, set the EN pin (pin 5) to low. This will turn off the converter.
Q: What is the output voltage range of TPS63000DRCR? A: The output voltage can be set within a range of 1.8V to 5.5V, depending on the feedback network used.
Q: What is the typical efficiency of the TPS63000DRCR? A: The efficiency can reach up to 96%, depending on input and output voltage conditions and load requirements.
Q: Can the TPS63000DRCR be used in battery-powered applications? A: Yes, it is ideal for battery-powered applications due to its low quiescent current and high efficiency.
Q: How do I configure the feedback resistors for a specific output voltage? A: The output voltage is determined by a feedback resistor network connected to the FB pin (pin 7). The resistor values can be chosen based on the desired output voltage.
Q: Can the TPS63000DRCR operate with both positive and negative inputs? A: Yes, it can operate with both positive and negative inputs, making it suitable for dual voltage supply systems.
Q: What is the thermal shutdown feature of the TPS63000DRCR? A: The device includes thermal shutdown to protect against overheating. If the junction temperature exceeds a safe limit, the converter will shut down to prevent damage.
This explanation provides a detailed analysis of each pin’s function and answers some of the most frequently asked questions regarding the TPS63000DRCR step-up/step-down converter.