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.

Register Log in

high voltage pump in nandflash

Status
Not open for further replies.
D

dahuangpeng

Newbie level 5
Joined
May 14, 2015
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
60
hi all

I have a question about high voltage witch about 25v in nandflash. this high voletage would be used for program or erase in nandflash. the schematic is normal dickson pump, and have a regulator follow the pump for small ripple. the spec have a limit, the high voltage's ripple must be smaller than 50mv, but the regulator's over shoot will be bigger than 300mv when the output have a big capacitor load suddenly. so would anyone can help me for this? thank you very much
 

Hi,

* faster feedback path
* regulator internal feedback
* less load capacitance
* (small) resistance in series with capacitor

Klaus
 
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top