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LTC3375
9
3375fc
For more information www.linear.com/3375
Typical perForMance characTerisTics
2A Buck Efficiency vs I
LOAD
2A Buck Efficiency vs I
LOAD
3A Buck Efficiency vs I
LOAD
3A Buck Efficiency vs I
LOAD
4A Buck Efficiency vs I
LOAD
1A Buck Efficiency vs I
LOAD
1A Buck Efficiency vs I
LOAD
Burst Mode OPERATION
LOAD CURRENT(mA)
1
EFFICIENCY (%)
50
80
1000
3375 G21
30
20
10
0
10010
100
40
60
70
90
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 3.3V
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.25V
FORCED CONTINUOUS MODE
Burst Mode
OPERATION
LOAD CURRENT(mA)
1
EFFICIENCY (%)
50
80
1000
3375 G22
30
20
10
0
10010
100
40
60
70
90
V
OUT
= 2.5V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 3.3V
V
IN
= 5.5V
V
IN
= 2.7V
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.7V
FORCED CONTINUOUS MODE
Burst Mode
OPERATION
LOAD CURRENT(mA)
1
EFFICIENCY (%)
50
80
1000
3375 G23
30
20
10
0
10010
100
40
60
70
90
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 3.3V
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.25V
FORCED CONTINUOUS MODE
Burst Mode
OPERATION
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 3.3V
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.25V
FORCED CONTINUOUS MODE
LOAD CURRENT(mA)
1
EFFICIENCY (%)
50
80
1000
3375 G25
30
20
10
0
10010
100
40
60
70
90
FORCED CONTINUOUS MODE
Burst Mode
OPERATION
LOAD CURRENT(mA)
1
EFFICIENCY (%)
50
80
1000
3375 G24
30
20
10
0
10010
100
40
60
70
90
V
OUT
= 2.5V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 3.3V
V
IN
= 5.5V
V
IN
= 2.7V
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.7V
V
OUT
= 2.5V
f
OSC
= 2MHz
L = 2.2µH
FORCED CONTINUOUS MODE
Burst Mode
OPERATION
LOAD CURRENT(mA)
1
EFFICIENCY (%)
50
80
1000
3375 G26
30
20
10
0
10010
100
40
60
70
90
V
IN
= 3.3V
V
IN
= 5.5V
V
IN
= 2.7V
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.25V
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
FORCED CONTINUOUS MODE
Burst Mode
OPERATION
LOAD CURRENT(mA)
1
EFFICIENCY (%)
50
80
1000
3375 G27
30
20
10
0
10010
100
40
60
70
90
V
CC
vs Temperature
V
SHNT
Clamp Voltage
vs Temperature
TEMPERATURE (°C)
–50
3.20
V
CC
(V)
3.22
3.26
3.28
3.30
3.40
3.34
0
50
75
3375 G19
3.24
3.36
3.38
3.32
–25 25
100
125
150
FOR V
CC
FEEDBACK DIVIDER
R
TOP
= 187k
R
BOT
= 107k
TEMPERATURE (°C)
–50
V
SHNT
CLAMP VOLTAGE (V)
6.18
6.12
6.14
6.16
150
3375 G20
6.02
6.04
6.06
6.00
1251007550250–25
6.20
6.08
6.10