TPS63070RNMR Detailed explanation of pin function specifications and circuit principle instructions
The model "TPS63070RNMR" belongs to Texas Instruments, a well-known semiconductor manufacturer. The part number is a step-up/down converter, specifically part of the TPS63070 series, which is used for voltage regulation applications.
Packaging Information:
Package Type: The "TPS63070RNMR" is packaged in QFN-16 (Quad Flat No-lead) with 16 pins. It’s a surface-mount package with a compact design suitable for space-constrained applications.Pin Function Specifications and Circuit Principle:
Below is a detailed description of all 16 pins and their corresponding functions for the TPS63070RNMR.
Pin Number Pin Name Pin Type Description 1 SW Output Switch pin. This pin connects to the inductor to form the Power converter's switching network. 2 GND Ground Ground pin. Connect to the system ground. 3 FB Input Feedback pin. The voltage feedback input is used to sense the output voltage, which controls regulation. 4 EN Input Enable pin. Used to enable or disable the device. A high level enables, and a low level disables. 5 OUT Output Output pin. This is where the regulated voltage is supplied to the load. 6 VSTBY Input Standby voltage input. This input provides power for standby operation when the device is disabled. 7 PGND Ground Power ground pin, used for connecting the ground of the power stage. 8 VOUT Output Output voltage sensing pin. Direct feedback for regulating the output voltage. 9 VDD Input Input power pin for the IC. Connect to a positive power supply voltage. 10 OUT2 Output Additional regulated output. This is used for multi-output configurations in more complex systems. 11 VREF Input Reference voltage input pin. Sets the reference voltage for feedback regulation. 12 ISENSE Input Current sense input. This pin is used for monitoring the current flow to ensure over-current protection. 13 NC No Connect No connection. This pin does not have any functional purpose and is not connected internally. 14 IN Input Input voltage pin. It provides the input voltage to the converter. 15 VOUT2 Output Second regulated output, used for providing different voltage levels from the same regulator. 16 FB2 Input Feedback for secondary output voltage regulation. Ensures the second output voltage is properly regulated.Pin Function FAQ (Frequently Asked Questions)
What is the function of the SW pin on the TPS63070RNMR? The SW pin connects to the inductor and forms the switching network for the power converter. How do I use the EN pin on the TPS63070RNMR? The EN pin is used to enable or disable the device. Applying a high level enables the device, and a low level disables it. What is the purpose of the FB pin? The FB pin senses the output voltage and provides feedback to the internal regulation mechanism to maintain a stable output. Can I connect the GND pin to a different ground potential? No, the GND pin should be connected to the system ground for proper operation. What does the VSTBY pin do on the TPS63070RNMR? The VSTBY pin is used for standby operation when the device is in a disabled state, providing the necessary voltage to keep the IC in a low-power mode. Why is the PGND pin needed in the TPS63070RNMR? The PGND pin is a power ground used to separate the signal ground from the power ground, ensuring proper functioning of the power stage. What type of voltage should I apply to the VDD pin? The VDD pin should be supplied with a positive input voltage that is within the operating range specified in the datasheet. How do I set the output voltage using the FB pin? The FB pin is used in conjunction with resistors to set the desired output voltage. By controlling the voltage at this pin, the IC regulates the output accordingly. What is the function of the VREF pin? The VREF pin provides a reference voltage for feedback regulation. It is essential for setting the correct output voltage.How can I monitor the current flow using the ISENSE pin?
The ISENSE pin monitors the current through the power stage and can be used to protect the device from over-current situations.Why is the IN pin important?
The IN pin provides the input voltage to the converter. The voltage applied here is transformed to the output voltage by the IC.How can I configure the second output (VOUT2)?
You can use the VOUT2 pin to create a secondary output voltage, typically by setting the feedback loop using the FB2 pin for regulation.Is it necessary to connect the NC pin?
No, the NC pin is not connected internally and should be left unconnected in your design.What is the role of the FB2 pin on the TPS63070RNMR?
The FB2 pin provides feedback for the secondary regulated output (VOUT2), ensuring it stays at the desired voltage level.Can the TPS63070RNMR support multiple output voltages?
Yes, it can support multiple outputs by configuring the VOUT and VOUT2 pins with different feedback loops.What should I consider when choosing inductors for the TPS63070RNMR?
Choose inductors with the appropriate value to ensure stable operation and efficiency within the converter's specifications.How does the feedback regulation work in the TPS63070RNMR?
Feedback regulation works by adjusting the output voltage based on the voltage sensed at the FB pin. The device continuously monitors and adjusts to maintain a constant output.Can I disable the output voltage regulation?
Yes, by setting the EN pin low, you can disable the output voltage regulation entirely.What should I do if the device enters over-current protection mode?
You should verify the current sensing network and ensure the device is operating within the expected current limits. The ISENSE pin can help monitor this.Can I use the TPS63070RNMR in a system that requires both step-up and step-down conversion?
Yes, this device is designed to support both step-up and step-down conversion, making it highly versatile in various applications.This concludes a detailed overview of the TPS63070RNMR pin functions and related FAQs. Let me know if you need any further information!
