LT8697
ꢂA = 25°C, unless otherwise noted.
Typical perForMance characTerisTics
Minimum On-ꢂime
vs ꢂemperature
100
Switch Drop vs ꢂemperature
Switch Drop vs ISW
250
200
150
100
50
350
300
250
200
150
100
50
SWITCH CURRENT = 1A
90
80
I
= 0A
LOAD
LOAD
TOP SW
70
60
50
40
TOP SW
BOTTOM SW
I
= 0.9A
BOTTOM SW
I
= 2.1A
95
LOAD
0
0
30
–55 –25
5
35
65
95 125 155
0
0.5
1
1.5
2
2.5
65
125 155
–55 –25
5
35
TEMPERATURE (°C)
SWITCH CURRENT (A)
TEMPERATURE (°C)
8697 G16
8697 G17
8697 G18
Minimum Off-ꢂime
vs ꢂemperature
Minimum Off-ꢂime
vs ꢂemperature
Dropout Voltage vs ILOAD
600
500
400
300
200
100
0
120
115
110
105
100
95
100
R
= 30.1k
R = 30.1k
T
SYNC = 1.2MHz
T
DCR = 20mΩ
L
SYNC = 3V
R
= 18mΩ
95
90
SENSE
85
80
75
70
65
I
= 2.1A
= 0.9A
LOAD
I
= 2.1A
= 0.9A
LOAD
I
LOAD
90
I
LOAD
I
85
I
= 0A
LOAD
= 0A
LOAD
80
60
75
0
0.5
1
1.5
2
2.5
–25
5
65
95 125 155
–55
35
–55 –25
5
35
155
65
95 125
LOAD CURRENT (A)
TEMPERATURE (°C)
TEMPERATURE (°C)
8697 G21
8697 G20
8697 G19
Switching ꢁrequency
vs ꢂemperature
Switching ꢁrequency vs VSYS
Switching ꢁrequency vs ILOAD
2100
2050
2000
1950
1900
2500
2000
1500
1000
500
2.20
2.15
2.10
2.05
2.00
1.95
1.90
1.85
1.80
R
= 16.5k
R = 16.5k
T
T
R
= 16.5k
T
0
0.0001 0.001
0.01
0.1
1
10
0
1
2
3
4
5
–55 –25
5
35
65
95 125 155
LOAD CURRENT (A)
V
(V)
SYS
TEMPERATURE (°C)
8697 G23
8697 G24
8697 G22
8697p
6
For more information www.linear.com/LT8697
LINEAR_DIMENSIONS [ Linear Dimensions ]
