TLV62568A: Frequency Accuracy

T Kishi

Genius 4425 points

Part Number: TLV62568A
Other Parts Discussed in Thread: TPS62290, TPS62060

My Customer has question.Please cooperate me

Customers plan to use them with the following specifications.

■①
　VIN:3.3V
Vout:1.8V
Iout:100mA～300mA

■②
　Vin:3.3V
　Vout:1.2V
　Iout:300mA～600mA

The SW frequency of each can be judged from the following figure 17 and 18 as follows.
①Fsw≒1.25MHz
②Fsw≒1.5MHz

Could you tell me the accuracy of the frequency at this time?

It is necessary for the customer to check whether the SW frequency falls within the specified range as the judgment item of good item or defective item of the actual machine.
It may be the accuracy of the internal oscillator, so could you tell me?

Best Regard

T Kishi

over 6 years ago

0 Sabrina over 6 years ago

TI__Expert 8420 points

Hi,

Similar question has been answered here:
e2e.ti.com/.../712903
Is this answering your question?

The internal design details are not available for customer publication

Regards
Sabrina

0 T Kishi over 6 years ago in reply to Sabrina

Genius 4425 points

Hi Sabrina

I read this article.
However, the customer must check whether the frequency falls within the regulation in the process of determining good products.
There is a possibility of Lost if you do not clear this point.
I do not mind approximate or general values, so can you confirm it?

Best Regard
T Kishi

0 Juergen over 6 years ago in reply to T Kishi

TI__Expert 5425 points

Determining good products based on approximate or general values sounds strange to me.
If switching frequency is really critical I suggest to use a device with an internal oscillator which has specified min and max switching frequency, e.g. TPS62290 or TPS62060.

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TLV62568A: Frequency Accuracy