LMR14010A: About circuit design using LMR14010A

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Part Number: LMR14010A
Other Parts Discussed in Thread: WEBENCH-CIRCUIT-DESIGNER

Tool/software:

I would like to know about circuit design using the LMR14010A.

When I designed a circuit previously, I looked at the datasheet (SLUSD87 –MARCH 2018).

In the circuit described in the Typical Application at that time, "Cboot" was connected to the "SW" terminal, "D1", and "L1".

The above terminals are also connected in the circuit diagram designed using "WEBENCH-CIRCUIT-DESIGNER" on the web.

However, in the updated datasheet, "Cboot" is only connected to "D1".

When I run "WEBENCH-CIRCUIT-DESIGNER" again, the output circuit has "Cboot" connected to the "SW" terminal, "D1", and "L1".

Please tell me the correct connection.

2 months ago

0 Ridge Lahti 2 months ago

TI__Genius 13525 points

Hello,

Both the diode and the BOOT capacitor need to be connected to the SW node. The Webench schematic is correct.

Best regards,

Ridge

0 ?? ?? 2 months ago in reply to Ridge Lahti

Prodigy 10 points

Hello, Ridge.

I am the questioner.

Thank you for your answer.

I will design the circuit according to WEBENCH.

As a supplement, here is the updated datasheet.

SLUSD87A – MARCH 2018 – REVISED JANUARY 2024

Best regards.

Hiroyuki

0 Ridge Lahti 2 months ago in reply to ?? ??

TI__Genius 13525 points

Hello,

I have the notified the team of the schematic shown in the datasheet. As you are already planning to, please follow the Webench connections. It seems that this issue is solved, and I will close this thread. If you have more questions, you can re-open this thread by replying or create a new thread.

Best regards,

Ridge

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LMR14010A: About circuit design using LMR14010A