TLV62595: SCH review

Cooper Zhang1

Expert 2190 points

Part Number: TLV62595

dear ,please help me to check this schematic of tlv62559 ? is it ok ？

over 3 years ago

0 Dorian Brillet de Cande over 3 years ago

TI__Genius 14876 points

Hello Cooper,

I do not see any output capacitors like we show in our typical applications schematics:

Can you tell me how much output cap there is here ?

Also, what is the value of VON (range) ?

Thanks a lot!

Let me know,

Dorian

0 Cooper Zhang1 over 3 years ago in reply to Dorian Brillet de Cande

Expert 2190 points

Dear ，

Von=3.7V, output Cap is C13 =100pf and C14=20pf in parallel

0 Dorian Brillet de Cande over 3 years ago in reply to Cooper Zhang1

TI__Genius 14876 points

Hello Cooper,

The 120pF we show in our datasheet is what we call a feedforward capacitor which should help your design to get better load transients responses.

The output cap should be connected to VOUT and GND.

See datasheet of the TLV62595.

Thanks a lot!

Regards,

Dorian

0 Cooper Zhang1 over 3 years ago in reply to Dorian Brillet de Cande

Expert 2190 points

ok，got it， is it 10uF + 22uF + 47uF in parallel for 0.47uH L ， right?

0 Dorian Brillet de Cande over 3 years ago in reply to Cooper Zhang1

TI__Genius 14876 points

Hello Cooper,

You should use Table 8-4 here, 8-3 should not be here. This will be corrected.

What you see in the table is already a combination. So it is either 0.47uH and 3*10uF output cap, or 0.47uH and 47uF output cap or 0.47uH and 100uF output cap.

I would suggest you a value between 30 and 100uF.

Let me know if you have any other questions!

Thanks,

Dorian

0 Dorian Brillet de Cande over 3 years ago in reply to Dorian Brillet de Cande

TI__Genius 14876 points

Hello Copper,

Do you have any further questions here ?
Let us know.

Thanks a lot!

Regards,
Dorian

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TLV62595: SCH review