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LM224: Output impedance R0?

Venkatesh P17

Intellectual 895 points

Part Number: LM224
Other Parts Discussed in Thread: TINA-TI

Hi TI team,

Can you please help me to find the output impedance of this part, I need to calculate a pole-zero compensation for one of my application which is associate with LM224DG4 and an NMosfet device.

Thanks and regards,

Venkatesh P.

over 5 years ago

0 kai klaas69 over 5 years ago

Guru 140200 points

Hi Venkatesh,

why not running the TINA-TI reference design? You will find it here:

www.ti.com/.../toolssoftware

Kai

0 Venkatesh P17 over 5 years ago in reply to kai klaas69

Intellectual 895 points

Hi Kai Klass,

Thanks for the information. Its really helpful.
Can you please suggest me any document for find the (Fast loop and Feed forward)compensation value calculation for linear regulator using Nmosfet?

Thanks and Regards,
Venkatesh P

0 Paul Goedeke over 5 years ago in reply to Venkatesh P17

TI__Mastermind 30600 points

Venkatesh,

I found a few things that may be useful:

TI Precision Labs on Op-Amp Stability: training.ti.com/ti-precision-labs-op-amps
Compensating LDOs: www.ti.com/.../snoa826.pdf
Linear Regulators Theory of Compensation: www.ti.com/.../snva020b.pdf
Optimizing Feedforward: www.ti.com/.../snva246.pdf
Linear Regulator Fundamentals: training.ti.com/linear-regulator-fundamentals-types-linear-regulators

Hope that helps,
Paul

0 kai klaas69 over 5 years ago in reply to Venkatesh P17

Guru 140200 points

Hi Venkatesh,

maybe we can help, when you show us your schematic.

Kai

0 Venkatesh P17 over 5 years ago in reply to kai klaas69

Intellectual 895 points

Hi Kai klass,

my circuit is as same as the following

Linear regulator.docx

Thanks and Regards,

Venkatesh P