ADR420/ADR421/ADR423/ADR425
CBYPASS = 0µF
VIN
LINE INTERRUPTION
500mV/DIV
VOUT
500mV/DIV
TIME (100µs/DIV)
Figure 27. ADR421 Line Transient Response, no CBYPASS
CBYPASS = 0.1µF
VIN
LINE INTERRUPTION
500mV/DIV
VOUT
500mV/DIV
TIME (100µs/DIV)
Figure 28. ADR421 Line Transient Response, CBYPASS = 0.1 μF
CL = 0µF
VOUT
1mA LOAD
1V/DIV
LOAD ON
LOAD OFF
2V/DIV
TIME (100µs/DIV)
Figure 29. ADR421 Load Transient Response, no CL
CL = 100nF
VOUT
Data Sheet
1mA LOAD
1V/DIV
LOAD ON
LOAD OFF
2V/DIV
TIME (100µs/DIV)
Figure 30. ADR421 Load Transient Response, CL = 100 nF
CIN = 0.01µF
NO LOAD
VOUT
VIN
2V/DIV
2V/DIV
TIME (4µs/DIV)
Figure 31. ADR421 Turn-Off Response
CIN = 0.01µF
NO LOAD
VOUT
2V/DIV
2V/DIV
VIN
TIME (4µs/DIV)
Figure 32. ADR421 Turn-On Response
Rev. J | Page 14 of 24