Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

anybody experienced LDO loop gain dropped so much @ ff corner high temp ?

Status
Not open for further replies.

ella1923

Member level 1
Member level 1
Joined
Apr 23, 2009
Messages
41
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,557
how did you solve this problem?can you please share with me.:-?
thanks,
ella
 

Determine which piece of the LDO is the problem. In this case
I think it's likely that the problem lies with pass transistor
leakage / subthreshold conduction, requiring the control amp
to swing to the rail (or nonphysicaly past) to choke the IOUT.
FF usually meaning minimum VT and high temp, even more so.

You may have to do better on the gate driver swing, use a
longer channel output device, etc.
 
Thank you for your reply. Your ideas always been very helpful to me.
 
Last edited:

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top