TLV62569: More high efficiency buck boost

cayden liu

Part Number: TLV62569
Other Parts Discussed in Thread: TPS63900, TPS631010

Tool/software:

Hi TI,

I need find a more high efficiency buck boost when light load. Target output efficiency is 95％ when 10mA. Would you like share me a more high efficiency buck boost compared with TLV62569？

BR Cayden

10 months ago

0 Josef Marsmann 10 months ago

TI__Expert 6510 points

Hi Cayden,

What are the exact condition you are looking for: VIN, VOUT ?

Best regards,

Sepp

0 cayden liu 10 months ago in reply to Josef Marsmann

TI__Intellectual 1276 points

Hi Sepp,

Vin is 3.0-4.2V. Vout is 3.0-5.0V.

Cayden

0 Josef Marsmann 10 months ago in reply to cayden liu

TI__Expert 6510 points

Hi Cayden,

The TPS62569 is a buck converter with a input range of 2.5V...5.5V and a output range of 0.6V...VIN (minus losses). You can not generate 5V out of 4.2V input!

Best regards,

Sepp

0 cayden liu 10 months ago in reply to Josef Marsmann

TI__Intellectual 1276 points

Yes.

So as the title said. I`m find buck boost which could achieve >90% efficiency when 10mA output.

Cayden

0 Josef Marsmann 10 months ago in reply to cayden liu

TI__Expert 6510 points

Hi Cayden,

I have moved the thread to BCC.

Best regards,

Sepp

0 Tao Zhang 10 months ago in reply to Josef Marsmann

TI__Mastermind 32350 points

Hi Cayden,

What is your output current range? Recommend TPS63900/1 or TPS631010/1 for your application.

Regards

Tao

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TLV62569: More high efficiency buck boost