LM109: Alternative die version

Danilo A.

Mastermind 26760 points

Part Number: LM109
Other Parts Discussed in Thread: LM117, LM140QML

Hi Team,

Do we have an alternative die version of the obsolete LM109K?

Regards,

Danilo

over 4 years ago

0 JCHK over 4 years ago

TI__Mastermind 44770 points

Hi Danilo,

Could the LM117 be an option?

Let me know what you think.

0 Kirby Kruckmeyer96848 over 4 years ago

TI__Genius 17085 points

Hello Danilo,

The "LM109K" is not obsolete. The proper full name of the part is "LM109K STEEL".

Originally "LM109K", without the "STEEL" indicated the metal can was made of aluminum, but that part was discontinued in the 1970s. Today, I believe that you can use the alternative part name "LM109K" for the "LM109K STEEL"

0 Danilo A. over 4 years ago in reply to Kirby Kruckmeyer96848

TI__Mastermind 26760 points

Hi JCHK,

Do we have a die version of LM117? If we have I will try to propose to the customer.

Hi Kirby,

Thank you for the clarification. The customer needs a die version of a 5V fixed voltage regulator. Do we have a die version of LM109K STEEL?

Regards,

Danilo

0 Kirby Kruckmeyer96848 over 4 years ago in reply to Danilo A.

TI__Genius 17085 points

Thanks for the clarification.

Here is a link to the power products we sell as die:

www.ti.com/.../products.html Management

Probably the closest replacement is the LM140QML. It is a linear regulator with a fixed 5V output option. The die is only available in military grade. Part number is LM140KG-5.0 MD8

The LM117 is an adjustable linear regulator which is also available in military grade plus space grade.

0 Danilo A. over 4 years ago in reply to Kirby Kruckmeyer96848

TI__Mastermind 26760 points

Hi Kirby,

I have proposed the LM140KG-5 MD8 to the customer since this part is not obsolete. I just wondering why it is included in the datasheet but not available in the product page.

Regards,

Danilo

0 Kirby Kruckmeyer96848 over 4 years ago in reply to Danilo A.

TI__Genius 17085 points

Hi Danilo,

It is a mil grade die so it is in the mil grade product page: LM140QML

For mil grade products that came from National Semiconductor, the product page ends in QML.

Let me know if you still have problems seeing it.

Power management

Power management forum

LM109: Alternative die version