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LT8646SEVPBF 数据表(PDF) 8 Page - Analog Devices

部件名 LT8646SEVPBF
功能描述  65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5μA Quiescent Current
PDF  30 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

LT8646SEVPBF 数据表(HTML) 8 Page - Analog Devices

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LT8645S/LT8646S
8
Rev. B
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Soft-Start Current
PG High Thresholds
PG Low Thresholds
RT Programmed Switching
Frequency
Minimum Input Voltage
Bias Pin Current
LT8645S Soft-Start Tracking
LT8646S Soft-Start Tracking
LT8646S Error Amp
Output Current
TR/SS VOLTAGE (V)
0
0.8
1.0
1.2
0.6
1.0
8645S G28
0.6
0.4
0.2
0.4
0.8
1.2
1.4
0.2
0
TR/SS VOLTAGE (V)
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6
0
0.2
0.4
0.6
0.8
1.0
1.2
LT8646S Soft-Start Tracking
8645S G29
VSS = 0.5V
TEMPERATURE (°C)
–50 –25
0
25
50
75
100 125
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
8645S G30
VC = 1.25V
FB PIN ERROR VOLTAGE (mV)
–200
–100
0
100
200
–500
–375
–250
–125
0
125
250
375
500
LT8646S Error Amp Output Current
8645S G31
FB RISING
FB FALLING
TEMPERATURE (°C)
–50 –25
0
25
50
75
100 125
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
8645S G32
FB RISING
FB FALLING
TEMPERATURE (°C)
–50 –25
0
25
50
75
100 125
–10.0
–9.5
–9.0
–8.5
–8.0
–7.5
–7.0
–6.5
–6.0
8645S G33
SWITCHING FREQUENCY (MHz)
0.2
150
200
250
1.8
8645S G34
100
50
125
175
225
75
25
0
0.6
1
1.4
2.2
TEMPERATURE (°C)
–50 –25
0
25
50
75
100 125
2.4
2.6
2.8
3.0
3.2
3.4
3.6
8645S G35
VBIAS = 5V
VOUT = 5V
fSW = 1MHz
INPUT VOLTAGE (V)
5
15
25
35
45
55
65
10
11
12
13
14
15
8645S G36



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