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LT8685SRVPBF データシート(PDF) 7 Page - Analog Devices

部品番号 LT8685SRVPBF
部品情報  42V Quad, Gangable, Synchronous, Monolithic Step-Down Regulator
PDF  24 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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LT8685SRVPBF データシート(HTML) 7 Page - Analog Devices

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LT8685S
7
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
HV Channel Minimum Off-Time vs
Temperature, CH1 and CH2 Shared
LV Channel Minimum On-Time vs
Temperature
LV Channel Minimum On-Time vs
Temperature, CH3 and CH4 Shared
Reference Voltage Variation vs
Temperature
HV Channel Load Regulation
LV Channel Load Regulation
Switching Frequency vs
Temperature
HV Channel Switching Frequency
vs Load, RT = 22.6kΩ
LV Channel Switching Frequency
vs Load, RT = 22.6kΩ
TA = 25°C. VIN1 = VIN2 = 12V, VIN3 = VIN4 = 3.3V,
fSW = 2MHz unless otherwise noted.
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
45
47
49
51
53
55
57
59
61
63
65
8685S G19
ILOAD = 1.2A
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
15
17
19
21
23
25
27
29
31
33
35
8685S G20
ILOAD = 1A
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
25
27
29
31
33
35
37
39
41
43
45
8685S G21
ILOAD = 2A
TEMPERATURE (°C)
–50
0
50
100
150
–1.25
–1.00
–0.75
–0.50
–0.25
0
0.25
0.50
0.75
1.00
1.25
8685S G22
PVIN = 12V
LOAD CURRENT (A)
0
0.5
1
1.5
2
2.5
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
8685S G23
LOAD CURRENT (A)
0
1
2
3
4
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
8685S G24
PVIN = 5V
350kHz
2MHz
3MHz
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
–10
–8
–6
–4
–2
0
2
4
6
8
10
8685S G25
VIN = 12V
VOUT = 5V
L = 1.5µH
Burst Mode OPERATION
PULSE SKIP MODE
LOAD CURRENT (A)
0.0001
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
8685S G26
LOAD CURRENT (A)
0.0001
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
8685S G27
VIN = 5V
VOUT = 1.8V
L = 0.40µH
Burst Mode OPERATION
PULSE SKIP MODE



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