TPS61230ARNSR Detailed explanation of pin function specifications and circuit principle instructions

The TPS61230ARNSR is a product from Texas Instruments (TI). It is a boost converter IC, typically used in applications requiring Power conversion, such as battery-powered devices.

Here’s a detailed breakdown of the specifications you’ve requested:

Package and Pinout

Package Type: The "RNSR" suffix indicates a VQFN (Very Thin Quad Flat No-lead) package with 16 pins.

Total Pin Count: 16 pins in total.

Here is the pin function specification for the TPS61230ARNSR in a detailed table format:

Pin Function Table:

Pin Number Pin Name Pin Type Pin Function Description Notes 1 VIN Input Supply voltage input pin (2.3V to 5.5V) Connect to the input voltage source 2 GND Ground Ground pin Connect to system ground 3 EN Input Enable pin for the IC; logic high enables operation Active high 4 PGOOD Output Power-good signal output; logic high when output voltage is within regulation limits Use for monitoring the power state 5 VOUT Output Output voltage pin; the regulated voltage output Connect to the load 6 FB Input Feedback pin for output voltage regulation; feedback loop Connect to a resistive divider for setting output voltage 7 LX Output Inductor connection for switching Connect to external inductor 8 SW Output Switch node; connected to the inductor and internal switching transistor 9 NC No Connection No internal connection; keep floating or connect to ground 10 NC No Connection No internal connection; keep floating or connect to ground 11 NC No Connection No internal connection; keep floating or connect to ground 12 NC No Connection No internal connection; keep floating or connect to ground 13 NC No Connection No internal connection; keep floating or connect to ground 14 NC No Connection No internal connection; keep floating or connect to ground 15 NC No Connection No internal connection; keep floating or connect to ground 16 NC No Connection No internal connection; keep floating or connect to ground

Pin Function Usage Description:

VIN Pin: This is the supply input pin where you connect your input voltage (2.3V to 5.5V range). GND Pin: Used for the ground connection of the IC. EN Pin: Enable pin. To enable the IC, the EN pin should be pulled high (logic level "1"). When low, the IC is disabled. PGOOD Pin: The power-good pin provides feedback that the output voltage is in regulation. If the output voltage is within limits, this pin will be pulled high. VOUT Pin: This pin provides the regulated output voltage from the boost converter. Connect this to the load. FB Pin: This feedback pin is used to monitor and regulate the output voltage. A resistive divider is typically connected here to set the output voltage. LX Pin: The switch node is where the inductor is connected. It switches between high and low to control the energy transfer in the converter. SW Pin: Connected to the internal switching transistor of the IC, it allows for efficient conversion of energy. NC Pins: These are No Connection pins, and they are left floating or connected to ground, as they have no function in the design.

20 Common FAQ (Frequently Asked Questions) with Detailed Answers:

1. What is the operating voltage range for TPS61230ARNSR? The TPS61230ARNSR operates within an input voltage range of 2.3V to 5.5V.

2. How do I enable or disable the TPS61230ARNSR? You can enable the TPS61230ARNSR by pulling the EN pin high (logic "1"). To disable, pull the EN pin low (logic "0").

3. What is the output voltage range of TPS61230ARNSR? The output voltage of the TPS61230ARNSR is adjustable via the feedback pin and can typically range from 2.5V to 5.5V.

4. What is the maximum output current of the TPS61230ARNSR? The maximum output current is dependent on the input voltage and output voltage but typically can deliver up to 600mA.

5. How does the feedback mechanism work in TPS61230ARNSR? The feedback pin (FB) allows you to set the output voltage by using a resistive divider. The feedback mechanism ensures the output is regulated at the desired voltage.

6. Can I connect the PGOOD pin to a microcontroller? Yes, the PGOOD pin can be connected to a microcontroller to monitor the power-good status of the IC.

7. What is the switching frequency of the TPS61230ARNSR? The switching frequency of the TPS61230ARNSR is typically 1.2 MHz.

8. What type of inductor is recommended for use with the TPS61230ARNSR? A 4.7µH to 10µH inductor is typically recommended for use with the TPS61230ARNSR.

9. What is the function of the LX pin? The LX pin is used to connect the external inductor to the switching node. This node switches between high and low to store and release energy.

10. Can the TPS61230ARNSR be used with an input voltage below 2.3V? No, the TPS61230ARNSR requires an input voltage in the range of 2.3V to 5.5V for proper operation.

11. How do I calculate the output voltage of TPS61230ARNSR? The output voltage can be set by selecting the appropriate resistor values for the feedback pin. The formula to calculate output voltage is based on the resistor divider used in the feedback loop.

12. Can I use the TPS61230ARNSR in a battery-powered device? Yes, the TPS61230ARNSR is ideal for battery-powered applications as it has low power consumption and operates within the battery voltage range.

13. Is thermal protection included in TPS61230ARNSR? Yes, the TPS61230ARNSR has thermal protection to prevent overheating during excessive current conditions.

14. What is the typical efficiency of TPS61230ARNSR? The typical efficiency of the TPS61230ARNSR can be up to 90%, depending on the input/output voltage conditions and the load.

15. How should I handle the ground pin in my circuit design? The ground pin (GND) should be connected directly to the system ground. Avoid routing traces near noisy components to minimize interference.

16. How can I check the power-good status? You can check the power-good status via the PGOOD pin, which will be high when the output voltage is within regulation limits.

17. Can the TPS61230ARNSR be used for power supply design in consumer electronics? Yes, it is suitable for a wide range of consumer electronics applications requiring efficient DC-DC boost conversion.

18. What is the package type of TPS61230ARNSR? The package type is VQFN-16 (Very Thin Quad Flat No-lead), which is a compact surface-mount package.

19. How do I calculate the inductor value for TPS61230ARNSR? The inductor value can be selected based on the application requirements, but typically a 4.7µH to 10µH inductor works well for most cases.

20. Is there a recommended PCB layout for the TPS61230ARNSR? Yes, Texas Instruments provides detailed application notes with recommended PCB layout designs for optimizing performance and minimizing noise.

This detailed explanation includes pin function, usage, and a FAQ section. Let me know if you need additional clarifications!