LTC3780
TYPICAL PERFORMANCE CHARACTERISTICS
Continuous Current Mode
(CCM, V
IN
= 6V, V
OUT
= 12V)
SW2
10V/DIV
SW2
10V/DIV
T
A
= 25°C, unless otherwise noted.
Continuous Current Mode
(CCM, V
IN
= 18V, V
OUT
= 12V)
SW2
10V/DIV
Continuous Current Mode
(CCM, V
IN
= 12V, V
OUT
= 12V)
SW1
10V/DIV
V
OUT
100mV/DIV
SW1
10V/DIV
SW1
10V/DIV
V
OUT
100mV/DIV
V
OUT
100mV/DIV
I
L
2A/DIV
V
IN
= 6V
V
OUT
= 12V
5μs/DIV
3780 G10
I
L
2A/DIV
V
IN
= 12V
V
OUT
= 12V
5μs/DIV
3780 G11
I
L
2A/DIV
V
IN
= 18V
V
OUT
= 12V
5μs/DIV
3780 G12
Burst Mode Operation
(V
IN
= 6V, V
OUT
= 12V)
SW2
10V/DIV
SW1
10V/DIV
SW2
10V/DIV
SW1
10V/DIV
Burst Mode Operation
(V
IN
= 12V, V
OUT
= 12V)
SW2
10V/DIV
Skip-Cycle Mode
(V
IN
= 18V, V
OUT
= 12V)
SW1
10V/DIV
V
OUT
500mV/DIV
I
L
2A/DIV
V
OUT
200mV/DIV
I
L
2A/DIV
V
OUT
100mV/DIV
I
L
1A/DIV
V
IN
= 12V
V
OUT
= 12V
10μs/DIV
3780 G14
V
IN
= 6V
V
OUT
= 12V
25μs/DIV
3780 G13
V
IN
= 18V
V
OUT
= 12V
2.5μs/DIV
3780 G15
Discontinuous Current Mode
(DCM, V
IN
= 6V, V
OUT
= 12V)
SW2
10V/DIV
SW1
10V/DIV
SW2
10V/DIV
SW1
10V/DIV
V
OUT
100mV/DIV
Discontinuous Current Mode
(DCM, V
IN
= 12V, V
OUT
= 12V)
SW2
10V/DIV
SW1
10V/DIV
Discontinuous Current Mode
(DCM, V
IN
= 18V, V
OUT
= 12V)
V
OUT
100mV/DIV
V
OUT
100mV/DIV
I
L
1A/DIV
V
IN
= 12V
V
OUT
= 12V
5μs/DIV
3780 G17
I
L
1A/DIV
V
IN
= 6V
V
OUT
= 12V
5μs/DIV
3780 G16
I
L
2A/DIV
V
IN
= 18V
V
OUT
= 12V
2.5μs/DIV
3780 G18
3780fe
7
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
