TPS43330A-Q1: Differences between TPS43330-Q1 & TPS43330A-Q1

Andy Snawerdt

Part Number: TPS43330A-Q1
Other Parts Discussed in Thread: TPS43330-Q1, , TPS54618-Q1, TPS54618

Hi Team,

What is the primary difference between the "A" & "non-A" versions of this device? Understood that the non-A is considered NRND today, but my customer is currently using it in an older application, and is looking to migrate to the new version.

Regards,

Andy

over 3 years ago

0 Phil Yi40 over 3 years ago

TI__Mastermind 38861 points

Hi Andy,

I can't find the document with their difference listed; but from TPS43330-Q1 search result in TI website, it shows result below.

Pin-for-pin with same functionality to the compared device.

TPS43330A-Q1

ACTIVE

Automotive 2V to 40V Low Iq Single Boost & Dual Synchronous Buck Controller

The TPS43330A-Q1 is a replacement for the TPS43330-Q1.

Thanks!
Phil

0 Andy Snawerdt over 3 years ago in reply to Phil Yi40

TI__Intellectual 1780 points

Hi Phil,

If you could keep digging for whatever document list's the associated differences I'd much appreciate it.

I know for some other devices we've added a Polyimide (PI) layer to the process flow for improved quality & reliability, and with that introduction we created a new device with a letter denotation - the TPS54618-Q1 vs. TPS54618C-Q1 is a prime example. However, I'm not certain if that was what changed on this device.

Regards,

Andy

0 Phil Yi40 over 3 years ago in reply to Andy Snawerdt

TI__Mastermind 38861 points

Hi Andy,

Sure; I'll do and let you know if I get any result.

Thanks!

Phil

+1 Phil Yi40 over 3 years ago in reply to Phil Yi40

TI__Mastermind 38861 points

Hi Andy,

Please see the answer below from a previous designer of the device:

In device TPS43330 (non-A version): When device in LPM and waking up EXTSUP gets shorted to VREG and that may cause a restart of the device (including running buck regulators):
High-IQ in Low-Power Mode under certain load-change condition (when changing load from 700mA to 170mA, and then removing the load results in Continuous-Mode operation instead of low-power mode.)
The above silicon bugs were fixed in TPS43330A.

Thanks!

Phil

0 Andy Snawerdt over 3 years ago in reply to Phil Yi40

TI__Intellectual 1780 points

Thank you Phil!

Power management

Power management forum

TPS43330A-Q1: Differences between TPS43330-Q1 & TPS43330A-Q1

Pin-for-pin with same functionality to the compared device.

TPS43330A-Q1