TPS61089: TPS610891 release date and force PWM in light mode

Charles (KAT) Zhang

Part Number: TPS61089
Other Parts Discussed in Thread: TPS61088,

Tool/software:

Hi team,

My customer need TPS610891 to work in force PWM mode in light mode, but I cannot find the sample and part number. do you know are we intent to release that part? if not, please provide alternative solution,

Thank you,

Charles

4 months ago

0 Fergus He 4 months ago

TI__Genius 14385 points

Hi Charles,

Right now, the device TPS610891 is not released, this will relate to the demand of customer.

Could you tell me more about the customer's application?

Usually, TPS61088 will be enough.

Best Regards,

Fergus

0 leo hua 4 months ago in reply to Fergus He

Prodigy 170 points

Hi team,

we need tps61089 pin to pin forced pwm at light loading BOOST IC, please help to provide sample urgently. Can you share the schedule of TPS-610891's sample?

0 Yezi Yang 4 months ago in reply to leo hua

TI__Prodigy 550 points

Hi Leo,

Sorry for the delayed response, our engineer is currently out of office. please expect a reply on Wednesday. Thank you.

Best regards

Yezi

0 Fergus He 4 months ago in reply to Yezi Yang

TI__Genius 14385 points

Hi Leo,

Sorry for relay late. Right now, we do not have plan about the FPWM version of TPS61089.

We will not consider this unless there is large demand of the market.

Could you tell me why you need the FPWM mode and share more information about your application?

Best Regards,

Fergus

0 leo hua 4 months ago in reply to Fergus He

Prodigy 170 points

Hi , FPWM 's ripple is smaller than the PFM.

0 Fergus He 4 months ago in reply to leo hua

TI__Genius 14385 points

Hi Leo,

Actually, the PFM ripple will be smaller than PWM as the peak current (current ripple) will be smaller than that in PWM.

please see below description.

The PFM dynamic response will be bad compared with FPWM.

Regards,

Fergus

Power management

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TPS61089: TPS610891 release date and force PWM in light mode