LT8697
ꢂA = 25°C, unless otherwise noted.
Typical perForMance characTerisTics
Efficiency vs ILOAD
VEN vs ꢂemperature
Efficiency vs ILOAD
100
95
90
85
80
75
70
65
60
55
50
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
100
90
80
70
60
50
EN/UV RISING
EN/UV FALLING
f
= 2MHz
SENSE
f
= 2MHz
SENSE
SW
SW
40
30
20
10
0
R
= 18mΩ
R
= 18mΩ
DCR = 20mΩ
R
DCR = 20mΩ
R
L
CBL
L
CBL
= OPEN
= OPEN
V
IN
V
IN
V
IN
= 8V
= 12V
= 24V
V
IN
V
IN
V
IN
= 8V
= 12V
= 24V
0
0.5
1
1.5
2
2.5
–55
–25
5
35
65
95
125
0.001
00.01
0.1
1
10
LOAD CURRENT (A)
TEMPERATURE (°C)
LOAD CURRENT (A)
8697 G08
8697 G07
8697 G09
No Load Supply Current
vs ꢂemperature
Efficiency vs ꢁrequency
No Load Supply Current vs VIN
100
90
80
70
60
16
14
12
10
8
10.0
9.5
9.0
8.5
8.0
7.5
7.0
f
= 700kHz
f
V
= 700kHz
= 12V
SW
SW
IN
L = 15µH
R
= 18mΩ
SENSE
L
CBL
DCR = 40mΩ
6
R
= OPEN
= 0.9A
I
LOAD
4
V
IN
V
IN
V
IN
= 8V
= 12V
= 24V
2
0
0.2
0.7
1.2
FREQUENCY (MHz)
1.7
2.2
6
12
18
INPUT VOLTAGE (V)
24
30
36
42
–55
–25
5
35
65
95 125 155
TEMPERATURE (°C)
8697 G10
8697 G11
8697 G12
ꢂop ꢁEꢂ Current Limit
vs ꢂemperature
Bottom ꢁEꢂ Current Limit
vs ꢂemperature
ꢂop ꢁEꢂ Current Limit
vs Duty Cycle
5.0
4.5
4.0
3.5
3.0
5.0
4.6
4.2
3.8
3.4
3.0
5.0
4.7
4.4
4.1
3.8
3.5
30% DC
70% DC
–55
–25
5
35
65
95
125
–55 –25
5
35
65
95 125 155
0
0.2
0.4
0.6
0.8
1.0
TEMPERATURE (°C)
TEMPERATURE (°C)
DUTY CYCLE (%)
8697 G13
8697 G15
8697 G13
8697p
5
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LINEAR_DIMENSIONS [ Linear Dimensions ]
