| ??? 09/03/11 06:42 Read: times |
#183602 - LM 1117 SOT 223 - Heatsinking |
I need to heatsink LM 1117 to improve reliability. Currently, heat is on the border range. I do not have space for heatsinking pad/Plane on the PCB, and need to go vertical for heatsink. I was thinking of an M3 screw is mounted on the pcb pad, and a threaded vertical heatsink used for dissipation. The heat-sink compound should transfer the heat from the screw to the heatsink. Could some bod suggest a method where in I can use a readily available heatsink? (SOT223 heatsink is available, but expensive. I am trying to use SOT instead of TO220 to cut costs. LM 1117 TO220 costs 1.5 USD, but the SOT version costs 0.22 USD )
Regards, Raj Nambiar |
| Topic | Author | Date |
| LM 1117 SOT 223 - Heatsinking | 01/01/70 00:00 | |
| Tight Suggestion | 01/01/70 00:00 | |
| I hate to change it, but | 01/01/70 00:00 | |
| Price Competition | 01/01/70 00:00 | |
| Price competition? | 01/01/70 00:00 | |
| Depends | 01/01/70 00:00 | |
| Switcher | 01/01/70 00:00 | |
| Switchers... | 01/01/70 00:00 | |
| LM1117 is an LDO | 01/01/70 00:00 | |
| 5V -> 3.3V | 01/01/70 00:00 | |
whoops | 01/01/70 00:00 | |
| LDO in HDO Application | 01/01/70 00:00 | |
| SOT223 will not work at all! | 01/01/70 00:00 | |
| "A Proper Heatsink" Indeed | 01/01/70 00:00 | |
| heat spreader | 01/01/70 00:00 | |
| LD1117 | 01/01/70 00:00 | |
| Alternative to LD1117 | 01/01/70 00:00 | |
| The LV33 can only deliver 500mA | 01/01/70 00:00 | |
| Current rating of LF33CV | 01/01/70 00:00 | |
| LD1086DT33 | 01/01/70 00:00 |