TPS61372L: Differences from TPS61372

Dice-K

Part Number: TPS61372L
Other Parts Discussed in Thread: TPS61372

Tool/software:

Hi support team,

Are TPS61372 and TPS61372L the same chip?
There are slight differences in the characteristics.

TPS61372 TPS61372L
-----------------------------------------------
Package DSBGA-16 WQFN-14
V(ESD) HBM ±1500V ±2000V
RΘJA 87.1℃/W 75.4℃/W
ISD (typ) 0.03μA 0.1μA
RDS(on) LS 33mΩ 36mΩ
RDS(on) HS 104mΩ 107mΩ
VHYS 100mΩ 136mΩ

The TPS61372L has a VBIAS pin.
Does this pin require an RC filter?

Regards,
Dice-K

1 month ago

0 Travis Wang 1 month ago

TI__Expert 8575 points

Hi Dice,

TPS61372L is a package change of TPS61372. There's a little changes on gate driver which slightly affects Rdson, but this doesn't affect application.

Best Regards,

Travis

0 Nathan Ding 1 month ago in reply to Travis Wang

TI__Genius 12195 points

Hi Dice,

VBIAS pin does require a RC to filter the switching noise.

Regards,

Nathan

0 Dice-K 1 month ago in reply to Nathan Ding

Mastermind 7460 points

Hi Nathan,
Thank you for your reply.

Are the recommended constants for the RC filter RF=5.1Ω and CF=100nF?
I would like the data sheet to add a statement of the design requirements.

Are the ABS and ROC of the VBIAS pin the same as those of the VIN pin?
I would also like these to be added.

Best regards,
Dice-K

+1 Nathan Ding 1 month ago in reply to Dice-K

TI__Genius 12195 points

Hi Dice,

Our validation and simulation are based on this RC parameters, so it is recommend to set it same as this.

Also VIAS pin voltage rating are same as VIN pin. Sorry that it is missed in the datasheet.

We will update the datasheet later. Appreciate for your feedback!

Regards,

Nathan

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TPS61372L: Differences from TPS61372