LM5165-Q1: 1A with hysteresis

Kuan Wei Chen (Kevin Chen)

Genius 9710 points

Part Number: LM5165-Q1
Other Parts Discussed in Thread: LM5164-Q1, LM5165, LM5164, LM3489-Q1, LM5161

Dear Team,

Do we have 1A AEC-Q100 solution with hysteresis control?

Kevin

over 5 years ago

0 David Baba over 5 years ago

TI__Mastermind 34410 points

Hello Kuan,

Please consider the LM5164-Q1. Hope this helps?

0 Kuan Wei Chen (Kevin Chen) over 5 years ago in reply to David Baba

TI__Genius 9710 points

Dear David,

I didn't find how can LM5164-Q1 achieve hysteresis control by which pin.

Or you can let me know how to achieve same function on LM5164-Q1?

Kevin

0 Kuan Wei Chen (Kevin Chen) over 5 years ago in reply to Kuan Wei Chen (Kevin Chen)

TI__Genius 9710 points

Dear David,

May I have your comments on it?

Kevin

0 David Baba over 5 years ago in reply to Kuan Wei Chen (Kevin Chen)

TI__Mastermind 34410 points

Hello Kuan,

If you are referring to PFM mode of the LM5165, then you are correct, the LM5164 cannot be used in PFM mode. However, the LM5164 employs a Constant on time (COT) control scheme similar to the LM5165. COT is a modified hysteretic scheme.

If you are looking for true hysteretic control, you may want to consider the LM3489-Q1, however, this is a controller (external FET) and not a regulator.

hope this helps?