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LT8697 Datasheet(PDF) 7 Page - Linear Dimensions Semiconductor

Part No. LT8697
Description  USB 5V 2.5A Output, 42V Input Synchronous Buck with Cable Drop Compensation
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Maker  LINEAR_DIMENSIONS [Linear Dimensions Semiconductor]
Homepage  http://www.lineardimensions.com
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LT8697 Datasheet(HTML) 7 Page - Linear Dimensions Semiconductor

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LT8697
7
8697p
For more information www.linear.com/LT8697
TA = 25°C, unless otherwise noted.
Typical perForMance characTerisTics
VUSB5V vs VTR/SS
ITR/SS vs Temperature
PG High Thresholds
VTR/SS (V)
0
0
6
4
5
3
1
2
0.4
8697 G25
1.2
0.2
0.6
0.8
1.0
TEMPERATURE (°C)
–55
1.4
1.7
2.2
1.5
1.6
1.8
1.9
2.0
2.1
5
8697 G26
155
–25
35
65
95
125
VTR/SS = 0.5V
TEMPERATURE (°C)
–55
6.0
7.5
11.0
6.5
7.0
8.0
8.5
9.0
9.5
10.0
10.5
5
8697 G27
155
–25
35
65
95
125
USB5V RISING
USB5V FALLING
ISYS vs VIN
ISYS vs Switching Frequency
VIN (V)
5
7
8
13
9
10
11
12
15
8697 G29
45
10
20
25
30
35
40
fSW = 2MHz
SWITCHING FREQUENCY (MHz)
0
0
2
12
4
6
8
10
0.5
8697 G30
2.5
1
1.5
2
VIN = 24V
VIN = 12V
PG Low Thresholds
TEMPERATURE (°C)
–55
–13.0
–11.5
–8.0
–12.5
–12.0
–11.0
–10.5
–10.0
–9.5
–9.0
–8.5
5
8697 G28
155
–25
35
65
95
125
USB5V RISING
USB5V FALLING
Transient Response
0A to 1A Load Step
Transient Response
1A to 2A Load Step
5.00
5.25
5.50
8697 G31
4.75
4.50
4.25
3
4
5
2
1
0
100µs/DIV
VOUT
VLOAD
ILOAD
25mA/µs
FRONT PAGE
APPLICATION CIRCUIT
5.00
5.25
5.50
8697 G32
4.75
4.50
4.25
3
4
5
2
1
0
100µs/DIV
VOUT
VLOAD
ILOAD
25mA/µs
FRONT PAGE
APPLICATION CIRCUIT


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