Expand menu
Hello, Sign in
My Account
0
Cart
Home
Products
Sensors
Semiconductors
Passive Components
Connectors
Power
Electromechanical
Optoelectronics
Circuit Protection
Integrated Circuits - ICs
Main Products
Manufacturers
Blog
Services
About OMO
About Us
Contact Us
Check Stock
LT8614EUDC#PBF
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
L
T8614
4
8614fc
For more information
www
.linear
.com/L
T8614
TYPICAL
PERFORMANCE
CHARACTERISTICS
Efficiency at 3.3V
OUT
Efficiency vs Frequency
Burst Mode Efficiency
vs Inductor Value
Reference Voltage
EN Pin Thresholds
Load Regulation
Efficiency at 5V
OUT
Efficiency at 3.3V
OUT
Efficiency at 5V
OUT
LOAD CURRENT (A)
0
50
EFFICIENCY (%)
55
65
70
75
100
85
1
2
2.5
8614 G01
60
90
95
80
0.5
1.5
3
3.5
4
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
f
SW
= 1MHz
L = 4.7µH
LOAD CURRENT (A)
0
50
EFFICIENCY (%)
55
65
70
75
100
85
1
2
8614 G02
60
90
95
80
3
0.5
1.5
2.5
3.5
4
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
f
SW
= 1MHz
L = 2.2µH
LOAD CURRENT (mA)
0.01
0.1
40
EFFICIENCY (%)
50
60
70
80
1
10
100
1000
8614 G03
30
20
10
0
90
100
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
f
SW
= 1MHz
L = 4.7µH
LOAD CURRENT (mA)
0.01
0.1
40
EFFICIENCY (%)
50
60
70
80
1
10
100
1000
8614 G04
30
20
10
0
90
100
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
f
SW
= 1MHz
L = 4.7µH
SWITCHING FREQUENCY (MHz)
0.25
98
96
94
92
90
88
86
84
1.75
2.75
8614 G05
0.75
1.25
2.25
EFFICIENCY (%)
V
OUT
= 5V
I
LOAD
= 1A
L = 8.6µH
V
IN
= 12V
V
IN
= 24V
INDUCTOR VALUE (µH)
0
65
EFFICIENCY (%)
70
75
80
85
90
95
2
4
6
8
8614 G06
10
V
OUT
= 5V
I
LOAD
= 10mA
V
IN
= 12V
V
IN
= 24V
TEMPERATURE (°C)
–50
REFERENCE VOLAGE (V)
0.971
0.973
0.975
150
8614 G07
0.969
0.967
0.965
0.961
0
50
100
–25
25
75
125
0.963
0.979
0.977
TEMPERATURE (°C)
–50
EN THRESHOLD (V)
0.99
1.01
150
8614 G08
0.97
0.95
0
50
100
–25
25
75
125
1.03
0.98
1.00
0.96
1.02
EN RISING
EN FALLING
LOAD CURRENT (A)
0
–0.15
CHANGE IN V
OUT
(%)
–0.10
–0.05
0
0.05
1
2
3
4
8614 G09
0.10
0.15
0.5
1.5
2.5
3.5
V
OUT
= 5V
V
IN
= 12V
L
T8614
5
8614fc
For more information
www
.linear
.com/L
T8614
TYPICAL
PERFORMANCE
CHARACTERISTICS
To
p
FET
Current
Limit
vs
Duty
Cycle
To
p
FET Current Limit
Bottom FET Current Limit
Switch Drop
Minimum On-Time
Switch Drop
Line Regulation
No-Load Supply Current
No-Load Supply Current
INPUT VOLTAGE (V)
5
–0.10
CHANGE IN V
OUT
(%)
–0.08
–0.04
–0.02
0
0.10
0.04
15
25
30
8614 G10
–0.06
0.06
0.08
0.02
10
20
35
40
45
V
OUT
= 5V
I
LOAD
= 1A
INPUT VOLTAGE (V)
0
0
INPUT CURRENT (µA)
0.5
1.5
2.0
2.5
5.0
3.5
10
20
25
45
8614 G11
1.0
4.0
4.5
3.0
5
15
30
35
40
V
OUT
= 3.3V
IN REGULATION
TEMPERATURE (°C)
–
55
–25
0
INPUT CURRENT (µA)
10
25
5
65
95
8614 G12
5
20
15
35
125
155
V
OUT
= 3.3V
V
IN
= 12V
IN REGULATION
TEMPERATURE (°C)
–50
CURRENT LIMIT (A)
6.0
6.5
7.0
100
125
25
50
75
8614 G15
5.5
5.0
–25
0
150
4.5
4.0
7.5
DUTY CYCLE
0
6.0
CURRENT LIMIT (A)
6.5
7.0
7.5
8.0
8.5
9.0
0.2
0.4
0.6
0.8
8614 G13
1.0
TEMPERATURE (°C)
–50
6.0
CURRENT LIMIT (A)
6.5
7.5
8.0
8.5
9.5
–25
75
125
8614 G14
7.0
9.0
50
150
0
25
100
5% DC
TEMPERATURE (°C)
–50
SWITCH DROP (mV)
100
150
150
8614 G16
50
0
0
50
100
–25
25
75
125
200
75
125
25
175
SWITCH CURRENT = 1A
TOP SWITCH
BOTTOM SWITCH
SWITCH CURRENT (A)
0
0
SWITCH DROP (mV)
50
150
200
250
500
350
1
2
8614 G17
100
400
450
300
3
4
TOP SWITCH
BOTTOM SWITCH
TEMPERATURE (°C)
–
50
20
MINIMUM ON-TIME (ms)
22
26
28
30
40
34
0
50
75
100
8614 G18
24
36
38
32
–
25
25
125
I
LOAD
= 1A, V
SYNC
= 0V
I
LOAD
= 1A, V
SYNC
= 3V
I
LOAD
= 2A
I
LOAD
= 4A
L
T8614
6
8614fc
For more information
www
.linear
.com/L
T8614
TYPICAL
PERFORMANCE
CHARACTERISTICS
Dropout Voltage
Switching Frequency
Burst Frequency
Frequency Foldback
Minimum Load to Full Frequency
(SYNC DC High)
Soft-Start T
racking
Soft-Start Current
PG High Thresholds
PG Low Thresholds
LOAD CURRENT (A)
0
DROPOUT VOLTAGE (mV)
400
600
4
8614 G19
200
0
1
2
3
0.5
1.5
2.5
3.5
800
300
500
100
700
TEMPERATURE (°C)
–50
SWITCHING FREQUENCY (kHz)
730
25
8614 G20
700
680
–25
0
50
670
660
740
R
T
= 60.4k
720
710
690
75
100
150
125
LOAD CURRENT (mA)
0
0
SWITCHING FREQUENCY (kHz)
200
400
600
800
1000
1200
50
100
150
200
8614 G21
FRONT PAGE APPLICATION
V
IN
= 12V
V
OUT
= 5V
INPUT VOLTAGE (V)
5
LOAD CURRENT (mA)
60
80
100
20
30
45
8614 G22
40
20
0
10
15
25
35
40
FRONT PAGE APPLICATION
V
OUT
= 5V
f
SW
= 1MHz
FB VOLTAGE (V)
0
SWITCHING FREQUENCY (kHz)
300
400
500
0.6
1
8614 G23
200
100
0
0.2
0.4
0.8
600
700
800
V
OUT
= 3.3V
V
IN
= 12V
V
SYNC
= 0V
R
T
= 60.4k
TR/SS VOLTAGE (V)
0
FB VOLTAGE (V)
0.8
1.0
1.2
0.6
1.0
8614 G24
0.6
0.4
0.2
0.4
0.8
1.2
1.4
0.2
0
TEMPERATURE (°C)
–50
SS PIN CURRENT (µA)
2.2
2.4
150
8614 G25
2.0
1.8
0
50
100
–25
25
75
125
2.6
2.1
2.3
1.9
2.5
V
SS
= 0.5V
TEMPERATURE (°C)
–
50
7.0
PG THRESHOLD OFFSET FROM V
REF
(%)
7.5
8.5
9.0
9.5
12.0
10.5
0
50
75
100
8614 G26
8.0
11.0
11.5
10.0
–
25
25
150
125
FB RISING
FB FALLING
TEMPERATURE (°C)
–
50
–12.0
PG THRESHOLD OFFSET FROM V
REF
(%)
–11.5
–10.5
–10.0
–9.5
–7.0
–8.5
0
50
75
100
125
8614 G27
–11.0
–8.0
–7.5
–9.0
–
25
25
150
FB RISING
FB FALLING
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
LT8614EUDC#PBF
Mfr. #:
Buy LT8614EUDC#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 42V, 4A Synchronous Step-Down SILENT SWITCHER with 2.5 A Quiescent Current
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
Paypal
Visa
MoneyGram
Western
Union
Products related to this Datasheet
LT8614MPUDC#PBF
LT8614HUDC#TRPBF
LT8614MPUDC#TRPBF
LT8614IUDC#PBF
LT8614EUDC#TRPBF
LT8614IUDC#TRPBF
LT8614EUDC#PBF
LT8614HUDC#PBF