Datasheet

LTC3458
5
3458fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
SW
2V/DIV
I
L
100mA/DIV
SW
2V/DIV
SW
5V/DIV
I
L
200mA/DIV
V
OUT
100mV/DIV
I
L
200mA/DIV
SW
5V/DIV
V
OUT
100mV/DIV
I
L
200mA/DIV
SS
200mV/DIV
V
OUT
2V/DIV
2V/DIV
V
IN
I
L
200mA/DIV
SW
2V/DIV
I
L
0.5A/DIV
0mA
200ns/DIV
1μs/DIV
200ns/DIV
50μs/DIV
5ms/DIV2μs/DIV
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
R
ILIM
= 133k
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
C
OUT
= 22μF
C
FF
= 22pF
0mA
0mA
0mA
0mA
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
C
OUT
= 22μF
C
FF
= 22pF
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
Fixed Frequency (FF)
Discontinuous Current
Fixed Frequency (FF)
Continuous Current
Over-Current with 1.5A I
LIMIT
Burst Mode Operation
Burst Mode Operation Close-Up Soft-Start into 50Ω Load