Datasheet

LM5025
SNVS265B –DECEMBER 2003–REVISED MARCH 2013 www.ti.com
Thermal Protection
Internal Thermal Shutdown circuitry is provided to protect the integrated circuit in the event the maximum junction
temperature is exceeded. When activated, typically at 165°C, the controller is forced into a low power standby
state with the output drivers and the bias regulator disabled. The device will restart after the thermal hysteresis
(typically 25°C). During a restart after thermal shutdown, the softstart capacitor will be fully discharged and then
charged in the low current mode (1µA) similar to a second level current limit event. The thermal protection
feature is provided to prevent catastrophic failures from accidental device overheating.
Application Circuit: Input 36-78V, Output 3.3V, 30A
Figure 16. Application Circuit
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