Thermal Shutdown

If the junction temperature of the LM2611 exceeds 163˚C, it

will enter thermal shutdown. In thermal shutdown, the part

deactivates the driver and the switch turns off. The switch

remains off until the junction temperature drops to 155˚C, at

which point the part begins switching again. It will typically

take 10ms for the junction temperature to drop from 163˚C to

155˚C with the switch off.

20018123

FIGURE 8. At low loads, the LM2611 enters a

pulse-skipping mode. The output ripple

slightly increases in this mode.

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