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2-6. Undervoltage lockout (UVLO)

Figure 2.6 Undervoltage lockout (UVLO)

When the input voltage of a load switch IC drops below the internal threshold, the undervoltage lockout (UVLO) function turns off its output to ensure system stability. This function comes in handy because system operation might become unstable if the voltage supplied to a constituent IC or circuit drops. Undervoltage lockout has a hysteresis. When the input voltage rises back above the recovery threshold, the output automatically turns back on.

The following links also provide descriptions of undervoltage lockout:

Application note: Basics of Load Switch ICs

FAQ: Does the undervoltage lockout function of the load switch IC provide a hysteresis?

Chapter2 Convenient functions load switch ICs

2-1. Useful functions available with load switch ICs
2-2. Operation of overcurrent protection
2-3. Operation of thermal shutdown
2-4. Inrush current reducing
2-5. Auto discharge
2-7. Reverse-current protection

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