SNVSAC2A March 2015 – June 2020 LM317A
PRODUCTION DATA.
| THERMAL METRIC(1)(2) | LM317A | UNIT | ||||
|---|---|---|---|---|---|---|
| NDE
(TO-220) |
DCY
(SOT-223) |
NDT
(TO) |
NDP
(TO-252) |
|||
| 3 PINS | 4 PINS | 3 PINS | 3 PINS | |||
| RθJA | Junction-to-ambient thermal resistance | 23.3 | 59.6 | 186(3) | 54.0 | °C/W |
| RθJC(top) | Junction-to-case (top) thermal resistance | 16.2 | 39.3 | 21 | 51.3 | °C/W |
| RθJB | Junction-to-board thermal resistance | 4.9 | 8.4 | — | 28.6 | °C/W |
| ψJT | Junction-to-top characterization parameter | 2.7 | 1.8 | — | 3.9 | °C/W |
| ψJB | Junction-to-board characterization parameter | 4.9 | 8.3 | — | 28.1 | °C/W |
| RθJC(bot) | Junction-to-case (bottom) thermal resistance | 1.1 | — | — | 0.9 | °C/W |