Skip to main content
Electrical Engineering

Return to Question

added 2 characters in body
Source Link
Matthew
Matthew
  • 147
  • 6

VRM spec sheets usually mention the maximum current, but don't seem to say anything about cooling, other then maximum temperature. Do they expect it to be cooled sufficiently, or will they not meet the maximum operating temperature under maximal load? If, for example, I had an LM2596 step updown converter, could I use more then the specified 3A maximum by putting a heatsink and fan on the IC?

VRM spec sheets usually mention the maximum current, but don't seem to say anything about cooling, other then maximum temperature. Do they expect it to be cooled sufficiently, or will they not meet the maximum operating temperature under maximal load? If, for example, I had an LM2596 step up converter, could I use more then the specified 3A maximum by putting a heatsink and fan on the IC?

VRM spec sheets usually mention the maximum current, but don't seem to say anything about cooling, other then maximum temperature. Do they expect it to be cooled sufficiently, or will they not meet the maximum operating temperature under maximal load? If, for example, I had an LM2596 step down converter, could I use more then the specified 3A maximum by putting a heatsink and fan on the IC?

Source Link
Matthew
Matthew
  • 147
  • 6

Exceeding maximum current on VRM if well cooled?

VRM spec sheets usually mention the maximum current, but don't seem to say anything about cooling, other then maximum temperature. Do they expect it to be cooled sufficiently, or will they not meet the maximum operating temperature under maximal load? If, for example, I had an LM2596 step up converter, could I use more then the specified 3A maximum by putting a heatsink and fan on the IC?