LMZM33606: Please check the design of LMZM33606, thank you!

user6416328

Prodigy 60 points

Part Number: LMZM33606

Dear Ti partner:

Please check the design of LMZM33606, thank you!

over 5 years ago

0 Jimmy Hua over 5 years ago

TI__Guru 50120 points

Hi,

I've reviewed your schematic and it looks okay.

When designing the PCB layout, please be sure to follow the recommended layout guidelines in Section 10.1.

Regards,

Jimmy

0 user6416328 over 5 years ago in reply to Jimmy Hua

Prodigy 60 points

dear Jimmy:

This lmzm33606 without discharge function?If discharge is not supported,Is there a good solution？

thanks!

yangly

0 Jimmy Hua over 5 years ago in reply to user6416328

TI__Guru 50120 points

Hi,

What do you mean by discharge function? If you disable the device by pulling EN low, the output voltage will eventually discharge down to 0V.

Is this what you are referring to?

Regards,

JImmy

0 user6416328 over 5 years ago in reply to Jimmy Hua

Prodigy 60 points

dear Jimmy:

Yes,when EN is low,if LMZM33606 with discharge circuit,the output voltage will quickly drop to 0V.

thanks!

0 user6416328 over 5 years ago in reply to user6416328

Prodigy 60 points

Hi Jimmy:

please help to confirm the following two questions,thanks.

1.can the VCC PIN be floating?

2.can the SW1 to SW9 PIN be floating?is it necesarry to connect them together?

0 Jimmy Hua over 5 years ago in reply to user6416328

TI__Guru 50120 points

Hi,

1. VCC can be left floating when not used.

2. SW1 - SW9 should be connected with a small copper island for thermal relief purposes.

Regards,

JImmy

0 user6416328 over 5 years ago in reply to Jimmy Hua

Prodigy 60 points

Hi Jimmy:

Our input is 24V and ouput is 12V ,and the power needed is over 60w, so the LMZM33606 is not powerful enough which could only output 50W.

could you recommend a new moudle which could output power more than 70W with the 12V output voltage?

0 user6416328 over 5 years ago in reply to user6416328

Prodigy 60 points

Hi , Jimmy,

The LMZM33606 could output 12V/6A at normal tempreture environment? or the MAX power is 50W at any condition?

0 Jimmy Hua over 5 years ago in reply to user6416328

TI__Guru 50120 points

Hi,

Refer to Figure 14 to see that the LMZM33606 can output 12V @6A with above 90% efficiency.

As for the ambient temperature refer to Figure 20 for a 75mm x 75mm 4 layer 2 oz copper board at 12V output. You can operate the device at the max of 50degC ambient. If you want to operate at a higher ambient temperature it is recommended to either increase the board area or attach a heat sink to the device for thermal relief.

Regards,

Jimmy

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LMZM33606: Please check the design of LMZM33606, thank you!