Post History
I am using TPS63000 in my design and I need to control PS/SYNC pin using a micro-controller. **The input to the buck boost converter is 3V to 4.3V which is coming from a battery. The microcontrol...
#3: Post edited
by
newbie
·
2024-11-08T15:57:54Z (3 months ago)
- I am using [TPS63000 ](https://www.ti.com/lit/ds/symlink/tps63000-q1.pdf?ts=1731067396049&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS63000-Q1)in my design and I need to control PS/SYNC pin using a micro-controller.
- **The input to the buck boost converter is 3V to 4.3V which is coming from a battery.
- The microcontroller is working at 3.3V. I doubt the BJT option will work always or not.**
- Any other circuit suggestions.
- I am using a BJT switch to control the PS/SYNC pin.When micro-controller output is high the BJT will turn on and PS/SYNC will be connected to GND and TPS63000 will go to low power mode.
- 
- My circuit diagram is given below.May I know your thoughts.
- 
The evaluation board[ schematic is here](https://www.ti.com/lit/ug/slvu156/slvu156.pdf?ts=1731067914211&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FTPS63000EVM-148).
- I am using [TPS63000 ](https://www.ti.com/lit/ds/symlink/tps63000-q1.pdf?ts=1731067396049&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS63000-Q1)in my design and I need to control PS/SYNC pin using a micro-controller.
- **The input to the buck boost converter is 3V to 4.3V which is coming from a battery.
- The microcontroller is working at 3.3V. I doubt the BJT option will work always or not.**
- Any other circuit suggestions.
- I am using a BJT switch to control the PS/SYNC pin.When micro-controller output is high the BJT will turn on and PS/SYNC will be connected to GND and TPS63000 will go to low power mode.
- 
- My circuit diagram is given below.May I know your thoughts.
- 
- The evaluation board[ schematic is here](https://www.ti.com/lit/ug/slvu156/slvu156.pdf?ts=1731067914211&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FTPS63000EVM-148).
- My updtaed circuit is given below.
- 
#2: Post edited
by
newbie
·
2024-11-08T13:29:36Z (3 months ago)
- I am using [TPS63000 ](https://www.ti.com/lit/ds/symlink/tps63000-q1.pdf?ts=1731067396049&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS63000-Q1)in my design and I need to control PS/SYNC pin using a micro-controller.
- I am using a BJT switch to control the PS/SYNC pin.When micro-controller output is high the BJT will turn on and PS/SYNC will be connected to GND and TPS63000 will go to low power mode.
- 
- My circuit diagram is given below.May I know your thoughts.
- 
- The evaluation board[ schematic is here](https://www.ti.com/lit/ug/slvu156/slvu156.pdf?ts=1731067914211&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FTPS63000EVM-148).
- I am using [TPS63000 ](https://www.ti.com/lit/ds/symlink/tps63000-q1.pdf?ts=1731067396049&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS63000-Q1)in my design and I need to control PS/SYNC pin using a micro-controller.
- **The input to the buck boost converter is 3V to 4.3V which is coming from a battery.
- The microcontroller is working at 3.3V. I doubt the BJT option will work always or not.**
- Any other circuit suggestions.
- I am using a BJT switch to control the PS/SYNC pin.When micro-controller output is high the BJT will turn on and PS/SYNC will be connected to GND and TPS63000 will go to low power mode.
- 
- My circuit diagram is given below.May I know your thoughts.
- 
- The evaluation board[ schematic is here](https://www.ti.com/lit/ug/slvu156/slvu156.pdf?ts=1731067914211&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FTPS63000EVM-148).
#1: Initial revision
by
newbie
·
2024-11-08T13:17:46Z (3 months ago)
Controlling the Low power mode of Buck Boost converter using a Microcontroller
I am using [TPS63000 ](https://www.ti.com/lit/ds/symlink/tps63000-q1.pdf?ts=1731067396049&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS63000-Q1)in my design and I need to control PS/SYNC pin using a micro-controller. I am using a BJT switch to control the PS/SYNC pin.When micro-controller output is high the BJT will turn on and PS/SYNC will be connected to GND and TPS63000 will go to low power mode.  My circuit diagram is given below.May I know your thoughts.  The evaluation board[ schematic is here](https://www.ti.com/lit/ug/slvu156/slvu156.pdf?ts=1731067914211&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FTPS63000EVM-148).