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LT8613 датащи(PDF) 6 Page - Linear Technology

номер детали LT8613
подробное описание детали  60V, 1.2A Synchronous Monolithic Buck Regulator with 6關A Quiescent Current
PDF  26 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LT8613 датащи(HTML) 6 Page - Linear Technology

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LT8619/LT8619-5
6
8619f
For more information www.linear.com/LT8619
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V
fOSC = 700kHz
NO LOAD
FORCED CONTINUOUS MODE
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
–1.00
–0.75
–0.50
–0.25
0
0.25
0.50
0.75
1.00
OUT
8619 G10
VIN = 12V
VOUT = 3.3V
fSW = 700kHz
FORCED CONTINUOUS MODE
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
1.0
1.2
–0.2
–0.1
0
0.1
0.2
Load Regulation
8619 G11
VOUT = 2.4V, NO LOAD
fSW = 400kHz
FORCED CONTINUOUS MODE
VIN (V)
1
10
100
–0.10
–0.05
0
0.05
0.10
8619 G12
SHUTDOWN THRESHOLD
POWER–ON THRESHOLD
EN/UV RISING
EN/UV FALLING
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
0
0.2
0.4
0.6
0.8
1.0
1.2
EN/UV Threshold
8619 G13
fSW = 700kHz
L = 10µH
IHLP-2020BZ-01
DUTY CYCLE (%)
0
20
40
60
80
100
1.5
1.6
1.7
1.8
1.9
2.0
8619 G14
VIN = 12V
VOUT = 3.3V
LOAD CURRENT = 100mA
TOP SWITCH
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
0
100
200
300
400
500
600
700
800
900
1000
Switch Resistance
8619 G15
BOTTOM SWITCH
VOUT = 3.3V
∆VOUT = –1%
fSW = 2MHz
L = 3.3µH, IHLP-2020AB-01
FORCED CONTINUOUS MODE
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
1.0
1.2
0
0.2
0.4
0.6
0.8
1.0
8619 G16
EN/UV Threshold
Top FET Current Limit vs
Duty Cycle
Switch Resistance
Dropout
VOUT = 3.3V
Load Regulation
Line Regulation
VIN = 12V
VOUT = 3.3V, NO LOAD
FORCED CONTINUOUS MODE
fSW = 700kHz
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
–5
–4
–3
–2
–1
0
1
2
3
4
5
SW
8619 G18
fSW = 2MHz
Dropout vs Temperature
fSW
1.2A LOAD
NO LOAD
1.0A LOAD
0.5A LOAD
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
0
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
8619 G17
VOUT = 3.3V, ∆VOUT = –1%
fOSC = 700kHz
FORCED CONTINUOUS MODE
(CONTINUOUS OPERATION
ABOVE MAX JUNCTION
TEMPERATURE MAY
PERMANENTLY
DAMAGE THE
DEVICE)
L = 10µH, IHLP-2020BZ-01



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