SNVS107G June 1999 – March 2023 LM2576 , LM2576HV
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
In some applications it is desirable to keep the regulator off until the input voltage reaches a certain threshold. Figure 7-1 shows an undervoltage lockout circuit that accomplishes this task, while Figure 7-2 shows the same circuit applied to a buck-boost configuration. These circuits keep the regulator off until the input voltage reaches a predetermined level.