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

LTC3890 does not give me enough current output

Status
Not open for further replies.
E

EEHobby

Newbie level 6
Newbie level 6
Joined
Dec 28, 2005
Messages
12
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,391
I designed a step down DC/DC voltage controller using LTC3890. I have an input voltage of 48v, and I want an output 12V, 3A, and an output 5V, 3A. However I can not get that much current. Any ideas? Please see the attahced schematics Thanks for help
 

Hi,
I did never used these IC, but are you sure pls that your Isense resistors are not higher as 10 mOhms, & are the right inductances & PCB layout used?
Has the IC sufficient cooling (trough PCBs copper)?
K.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top