7.4.3 Disabled
The device is disabled under the following conditions:
- The enable voltage is less than the enable falling threshold voltage or has not yet exceeded the enable rising threshold.
- The device junction temperature is greater than the thermal shutdown temperature.
Table 1 lists the conditions that lead to the different modes of operation.
Table 1. Device Functional Mode Comparison
| OPERATING MODE |
PARAMETER |
| VIN |
VEN |
IOUT |
TJ |
| Normal mode |
VIN > VOUT(nom) + VDO and
VIN > VIN(min) |
VEN > VEN_HI |
IOUT < ILIM |
T J < 125°C |
| Dropout mode |
VIN(min) < VIN < VOUT(nom) + VDO |
VEN > VEN_HI |
— |
TJ < 125°C |
Disabled mode
(any true condition disables the device) |
— |
VEN < VEN_LO |
— |
TJ > 170°C |