Part Number: LM5118-Q1
Hello,
I am having difficulty getting a 24VDC to 24VDC regulator working using the LM5118-Q1. It is to protect some equipment in an industrial automotive environment.
The specs I hope to achieve are:
VIN: 8-75V, 24V nominal.
VOUT: 24V
IOUT: 2A
Attached is the schematic and a picture of the board layout I would like to use. Could I please have someone more experienced comment on these designs to see if they are suitable? The design is based off a Webench design, with a few of the components tweaked and the footprint of the board reduced.
Also, I have attempted to build the circuit on a breadboard using a breakout of the IC components. When the circuit has no load, it works as expected, however, connecting a 5-30Ohm resistor as a load causes the output to drop to 0.6V when the input is above ~12V, and varies widely when the input is below that. I intend to get a PCB made to replace the breadboard, but not before I have someone review the layout to point out any obvious errors that might be the reason the breadboard attempt doesn't work.
Thanks in advance.
Schematic:
(Please visit the site to view this file)
Board Layout:
(Please visit the site to view this file)