About LDO_2P5 (weak regulator) in i.MX6DQ.

cancel
Showing results for 
Search instead for 
Did you mean: 

About LDO_2P5 (weak regulator) in i.MX6DQ.

Jump to solution
100 Views
keitanagashima
Senior Contributor I

Dear All,

Hello. I have a question about the performance of weak-regulator with LDO_2P5 in i.MX6DQ.

Refer to 10.4.1.1.2 Analog LDO regulators (weak regulator) in IMX6DQRM(Rev.2).

[Q1]

When alternating to weak regulator, why does the consumption current is reduced?

(Is "weak regulator" for the low-load?)

[Q2]

Could you give me the characteristic graph ("Output voltage" vs "Output current ") about weak regulator.

*When alternating to weak regulator, the output current seems to be lacking to SATA_VPH and NVCC_LVDS circuit on custom board.

Best Regards,

Keita

Labels (5)
0 Kudos
1 Solution
42 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Keita

1. consumption current is reduced because LDO decrease internal curcuits

currents, for example internal biasing currents.

2. characteristic graph ("Output voltage" vs "Output current ") can be calculated

using output impedance, below

LDO.jpg

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

View solution in original post

0 Kudos
1 Reply
43 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Keita

1. consumption current is reduced because LDO decrease internal curcuits

currents, for example internal biasing currents.

2. characteristic graph ("Output voltage" vs "Output current ") can be calculated

using output impedance, below

LDO.jpg

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

View solution in original post

0 Kudos