TPS548A29: Looking for a device like TPS54A29, but OVP is auto retry

Kazuhiko Hirano

Part Number: TPS548A29
Other Parts Discussed in Thread: TPS548B27, TPS548B28,

Hello,

My customer is looking for a buck converter device like TPS54A29 spec but OVP is auto retry, not latched.
What devices does TI recommend?

Best regards,

K.Hirano

over 3 years ago

0 Calan Elaya over 3 years ago

TI__Expert 7675 points

Hello Hirano-san,

In this case, a buck converter device you might be interested in would be TPS548B27. This device offers the auto-retry or "hiccup" feature you are looking for. Refer to page 21 in the datasheet, section 7.3.12.

Thanks,

Calan

0 Kazuhiko Hirano over 3 years ago in reply to Calan Elaya

TI__Genius 13958 points

Calan,

Thank you for your response.
But, just in case, let me confirm again to 100% make sure.
Please refer to the following E2E thread, TPS54A29 datasheet 7.2.12 also says the same, but OVP is latched not "hiccup" at TPS54A29.
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1010044/tps548a29-latched-or-auto-retry-for-ovp-faults
At TPS548B27, OVP is really "hiccup"?
How about TPS548B28?

Best regards,

K.Hirano

+1 Calan Elaya over 3 years ago in reply to Kazuhiko Hirano

TI__Expert 7675 points

Hello Hirano-san,

TPS548A29 is indeed OVP latched, not hiccup.

TPS548B28 is also OVP latched, not hiccup. There is a typo in the datasheet section 7.3.12. It addresses that OVP is hiccup but that is incorrect. OVP is latched for this device.

TPS548B27 is OVP hiccup.

Best regards,

Calan

0 Kazuhiko Hirano over 3 years ago in reply to Calan Elaya

TI__Genius 13958 points

Calan,

Thank you for your confirmation!

Best regards,

K.Hirano

Power management

Power management forum

TPS548A29: Looking for a device like TPS54A29, but OVP is auto retry