Please review my ESP based WLED controller board for WS2815 12V LED Strips - New to electronics.

[Geeker007]

I'm designing an ESP-based WLED controller board for WS2815 12V LED strips, with a primary focus on energy efficiency.

To minimize power consumption, my goal is to completely shut down the system when the LED strip is turned off.
However, the current buck converter powering the ESP module draws about 8 watts even when the LEDs are idle, making it unsuitable for low-power operation.

I am using below components:

• Buck Converter: TPS562201 (12V → 5V regulated)
• Microcontroller: XIAO ESP32-C3 (with built-in USB-C)
• LED Strip: WS2815 (12V digital LED strip)
• Switching MOSFET: Logic-level N-MOSFET (IRLZ44N)
• Level Shifter: BSS138 MOSFET-based (3.3V to 5V data line)
• Status LED: Green LED

I've attached the schematic—could you please review it and let me know if I've missed anything or if there are areas for improvement?
I designed it with limited experience, so I’d really appreciate your feedback on whether the setup is correct and functional.

Thanks

[Geeker007]

I have updated TPS562201 with TPS62840DLCR as per search online. Better option?

Adding updated schematic

[Geeker007]

I have updated TPS562201 with TPS62840DLCR as per search online. Better option?

Adding updated schematic

Ignore this change. I think I made a mistake by adding lower input voltage buck converter? So TPS562201 is fine or there is better option?

Thanks

[stj]

if thats eaglecad then use the SMASH button to seperate the symbols from the labels

[truclacicr]

The feedback makes no sense (VFB and VOS). There should be potential dividers.

[Geeker007]

if thats eaglecad then use the SMASH button to seperate the symbols from the labels

Here is the updated one.

The feedback makes no sense (VFB and VOS). There should be potential dividers.

Can you please explain a bit more may be through change in schematic? Sorry new to circuits but ready to learn.

[truclacicr]

See the "Reference Design" on page 12 of the datasheet:

https://www.ti.com/lit/ds/symlink/tps562201.pdf

There is a potential divider between Vout and Vfb.

Vout = Vfb x (1 + R1/R2) = 0.768 x 1.309 = 1.005V

[Geeker007]

Made some changes. Can you guys please review now and provide me the feedback. Any other suggestions here?

[stj]

whats that ttl chip about?
is it intended as a buffer for the esp output?