Datasheet

LTC3615/LTC3615-1
5
3615fb
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Typical perForMance characTerisTics
Load Regulation Line Regulation
Efficiency vs Load Current
(V
MODE
= 0V)
Efficiency vs Load Current
(V
MODE
= 0V)
Efficiency vs Load Current
(V
MODE
= 0V)
V
IN
= 3.3V, R
T
/SYNC = SV
IN
, unless otherwise noted.
Efficiency vs Load Current
(V
MODE
= 0.55 • SV
IN
)
Efficiency vs Load Current
(V
MODE
= 0.55 • SV
IN
)
Efficiency vs Input Voltage
(V
MODE
= 0V)
OUTPUT CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
10
3615 G01
0
V
OUT
= 1.8V
V
IN
= 2.5V
V
IN
= 3.3V
V
IN
= 5V
0.001 0.1 10.01
OUTPUT CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
3615 G02
0
V
OUT
= 1.2V
V
IN
= 2.5V
V
IN
= 3.3V
V
IN
= 5V
10
0.001 0.1 10.01
OUTPUT CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
3615 G03
0
V
OUT
= 2.5V
V
IN
= 3.3V
V
IN
= 4V
V
IN
= 5V
10
0.001 0.1 10.01
OUTPUT CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
3615 G04
0
V
OUT
= 1.8V
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5V
10
0.001 0.1 10.01
OUTPUT CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
3615 G05
0
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5V
V
OUT
= 1.2V
10
0.001 0.1 10.01
INPUT VOLTAGE (V)
2.25
50
EFFICIENCY (%)
55
65
70
75
95
90
3615 G06
60
85
80
3.75
3.25
5.25
2.75
4.25 4.75
I
OUT
= 3A
I
OUT
= 2A
I
OUT
= 1A
I
OUT
= 0.3A
I
OUT
= 0.2A
V
OUT
= 1.8V
OUTPUT CURRENT (A)
0
V
OUT
ERROR (%)
0.2
0.3
0.4
0.1
0
0.5 1.51 2 2.5 3
–0.3
–0.4
–0.1
0.5
–0.2
3615 G07
INTERNAL
COMPENSATION
(I
TH
= SV
IN
)
V
MODE
= 1.5V
EXTERNAL
COMPENSATION
INPUT VOLTAGE (V)
2.25
V
OUT
ERROR (%)
0.05
0.10
0.15
0
2.75 3.753.25 4.25 4.75 5.25
–0.15
–0.20
–0.05
0.20
–0.10
3615 G08
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