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LT8650SPJVPBF Datasheet(PDF) 6 Page - Analog Devices

Part # LT8650SPJVPBF
Description  Dual Channel 6A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2μA Quiescent Current
PDF  34 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8650SPJVPBF Datasheet(HTML) 6 Page - Analog Devices

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LT8650SP
6
Rev. B
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
No Load Supply Current with
External Compensation
No Load Supply Current
Top FET Current Limit
Top FET Current Limit
Bottom FET Current Limit
Switch VDS
INPUT VOLTAGE (V)
5
10
15
20
25
30
35
40
0
20
40
60
80
100
120
140
160
VIN1 = VIN2
VOUT1 = 5V, VOUT2 = 3.3V
IN REGULATION
SYNC = 0V
8650sp G11
BOTH CHANNELS ENABLED, BIAS = FLOAT
ONLY CHANNEL 2 ENABLED, BIAS = FLOAT
BOTH CHANNELS ENABLED, BIAS = VOUT2
ONLY CHANNEL 2 ENABLED, BIAS = VOUT2
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
0
20
40
60
80
100
120
140
160
VIN1 = VIN2 = 12V
VOUT1 = 5V, VOUT2 = 3.3V
VBIAS = VOUT1
SYNC = 0V
8650sp G12
INTERNAL COMP
EXTERNAL COMP
BOTH CHANNELS IN REGULATION
TOP FET
BOT FET
IDS (A)
0
1
2
3
4
5
0
50
100
150
200
250
300
350
400
450
500
8650sp G16
DUTY CYCLE
0
0.2
0.4
0.6
0.8
1
4
6
8
10
12
14
16
18
8650sp G13
30% DC
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
4
6
8
10
12
14
16
18
8650sp G14
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
4
5
6
7
8
9
10
11
12
13
14
8650sp G15
Minimum Off-Time
Dropout Voltage
Minimum On-Time
FCM, 2A LOAD
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
0
10
20
30
40
50
60
70
80
8650sp G17
FCM, 1A LOAD
TEMPERATURE (°C)
–55 –25
5
35
65
95
125 155
50
51
52
53
54
55
56
57
58
59
60
8650sp G18
FCM
Burst Mode
OPERATION
fSW = 2MHz
VOUT = 3V
LOAD CURRENT (A)
0
0.5
1
1.5
2
2.5
3
3.5
4
0
100
200
300
400
500
600
700
800
900
1000
8650sp G19



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