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LTC3374EUHF#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
LTC3374
7
3374fc
For more information www.linear.com/LTC3374
Oscillator Frequency vs R
T
Enable Threshold vs TemperatureV
TEMP
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
Buck V
IN
Supply Current
vs Temperature
Buck V
IN
Supply Current
vs Temperature
V
OUT
vs Temperature
Enable Pin Precision Threshold
vs Temperature
R
RT
(kΩ)
250
f
OSC
(MHz)
2.0
2.5
3.0
650 750700
3374 G09
1.5
1.0
0
350
450
550
300 800
400
500
600
0.5
4.0
3.5
V
CC
= 3.3V
0
–200
V
TEMP
(mV)
0
400
1400
800
20 10080
200
1000
1200
600
40 60 120 140
ACTUAL V
TEMP
IDEAL V
TEMP
TEMPERATURE (°C)
3374 G10
TEMPERATURE (°C)
–50
400
EN THRESHOLD (mV)
450
550
600
650
900
750
0
50
75
3374 G11
500
800
850
700
–25 25
100
125
150
ALL REGULATORS DISABLED
V
CC
= 3.3V
EN RISING
EN FALLING
TEMPERATURE (°C)
–50
EN THRESHOLD (mV)
395
410
150
3374 G12
385
380
0
50
100
–25
25
75
125
420
390
400
405
415
EN RISING
EN FALLING
TEMPERATURE (°C)
–50
I
VIN_BURST
(µA)
40
150
3374 G13
10
0
1251007550250–25
50
20
30
Burst Mode OPERATION
FB = 850mV
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 3.3V
TEMPERATURE (°C)
–50
I
VIN_FORCED_CONTINUOUS
(µA)
450
500
150
3374 G14
50
100
150
0
1251007550250–25
550
200
250
300
350
400
FORCED CONTINUOUS MODE
FB = 0V
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 3.3V
TEMPERATURE (°C)
–50
V
OUT
(V)
1.84
1.86
150
3374 G15
1.72
1251007550250–25
1.88
1.74
1.76
1.78
1.80
1.82
FORCED CONTINUOUS MODE
I
LOAD
= 0mA
V
IN
= 5.5V
V
IN
= 2.25V
V
IN
= 3.3V
PMOS Current Limit
vs Temperature
TEMPERATURE (°C)
–50
I
FWD
(A)
2.5
150
3374 G16
2.1
2.2
2.0
1251007550250–25
2.6
2.3
2.4
V
IN
= 3.3V
LTC3374
8
3374fc
For more information www.linear.com/LTC3374
TYPICAL PERFORMANCE CHARACTERISTICS
2A Buck Efficiency vs I
LOAD
,
V
OUT
=2.5V
3A Buck Efficiency vs I
LOAD
,
V
OUT
=1.8V
3A Buck Efficiency vs I
LOAD
,
V
OUT
=2.5V
1A Buck Efficiency vs I
LOAD
,
V
OUT
=1.8V
1A Buck Efficiency vs I
LOAD
,
V
OUT
=2.5V
2A Buck Efficiency vs I
LOAD
,
V
OUT
=1.8V
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G19
30
20
10
0
90
100
Burst Mode OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 2.5V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 5.5V
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G21
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G22
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 2.5V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 5.5V
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G23
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G24
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 2.5V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 5.5V
PMOS R
DS(ON)
vs Temperature NMOS R
DS(ON)
vs Temperature
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
150
150
200
250
300
350
400
450
500
550
R
DS(ON)
(mΩ)
3374 G17
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
150
150
200
250
300
350
400
450
500
550
R
DS(ON)
(mΩ)
3374 G18
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
LTC3374
9
3374fc
For more information www.linear.com/LTC3374
4A Buck Efficiency vs I
LOAD
,
V
OUT
=1.8V
4A Buck Efficiency vs I
LOAD
,
V
OUT
=2.5V
1A Buck Efficiency vs Frequency
(Forced Continuous Mode)
TYPICAL PERFORMANCE CHARACTERISTICS
1A Buck Efficiency vs Frequency
(Forced Continuous Mode)
1A Buck Efficiency vs I
LOAD
(Across Operating Frequency)
1A Buck Regulator Load Regulation
(Forced Continuous Mode)
4A Buck Regulator Load Regulation
(Forced Continuous Mode)
1A Buck Regulator
Line Regulation
(Forced Continuous Mode)
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G25
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 1.8V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.25V
V
IN
= 3.3V
V
IN
= 5.5V
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G26
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 2.5V
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 5.5V
FREQUENCY (MHz)
1
EFFICIENCY (%)
60
80
100
2.6
3374 G27
40
20
50
70
90
30
10
0
1.4
1.8
2.2
1.2 2.8
1.6
2
2.4
3
V
IN
= 5.5V
V
IN
= 3.3VV
IN
= 2.25V
V
OUT
= 1.8V
I
LOAD
= 100mA
L = 3.3µH
FREQUENCY (MHz)
1
EFFICIENCY (%)
60
80
100
2.6
3374 G28
40
20
50
70
90
30
10
0
1.4
1.8
2.2
1.2 2.8
1.6
2
2.4
3
I
LOAD
= 100mA
I
LOAD
= 500mA
I
LOAD
= 20mA
V
OUT
= 1.8V
V
IN
= 3.3V
L = 3.3µH
LOAD CURRENT (mA)
1
40
EFFICIENCY (%)
50
60
70
80
10 100 1000
3374 G29
30
20
10
0
90
100
Burst Mode
OPERATION
FORCED
CONTINUOUS
MODE
V
OUT
= 1.8V
V
IN
= 3.3V
f
OSC
= 1MHz
L = 3.3µH
f
OSC
= 2MHz
L = 2.2µH
f
OSC
= 3MHz
L = 1µH
V
IN
= 5.5V
DROPOUT
V
IN
= 3.3V
V
IN
= 2.25V
LOAD CURRENT (mA)
1
V
OUT
(V)
1.800
1.812
1000
3374 G30
1.792
1.788
1.784
1.780
10010
1.820
1.796
1.804
1.808
1.816
f
OSC
= 2MHz
L = 2.2µH
V
IN
= 5.5V
V
IN
= 3.3V
V
IN
= 2.25V
LOAD CURRENT (mA)
1
V
OUT
(V)
1.800
1.812
1000
3374 G31
1.792
1.788
1.784
1.780
10010
1.820
1.796
1.804
1.808
1.816
f
OSC
= 2MHz
L = 2.2µH
DROPOUT
I
LOAD
= 100mA
I
LOAD
= 500mA
V
IN
(V)
2.25 2.75
V
OUT
(V)
1.810
5.254.25 4.75
3374 G32
1.790
1.785
1.780
3.753.25
1.820
1.795
1.800
1.805
1.815
f
OSC
= 2MHz
L = 2.2µH
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

LTC3374EUHF#PBF

Mfr. #:
Buy LTC3374EUHF#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 8-Channel Programmable, Parallelable 1A Buck DC-DCs
Lifecycle:
New from this manufacturer.
Delivery:
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