LTC1871-1 LINER [Linear Technology], LTC1871-1 Datasheet - Page 7

• Manufacturer Part Number: LTC1871-1
• Description: High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller
• Manufacturer: LINER [Linear Technology]

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