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LTM4607 Scheda tecnica(PDF) 6 Page - Linear Technology

Il numero della parte LTM4607
Spiegazioni elettronici  High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller
PDF  28 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTM4607 Scheda tecnica(HTML) 6 Page - Linear Technology

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LTC3780
6
3780fe
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Output Current
(Boost Operation)
Efficiency vs Output Current
Efficiency vs Output Current
(Buck Operation)
Supply Current vs Input Voltage
Internal 6V LDO Line Regulation
EXTVCC Voltage Drop
INTVCC and EXTVCC Switch
Voltage vs Temperature
EXTVCC Switch Resistance
vs Temperature
Load Regulation
TA = 25°C, unless otherwise noted.
ILOAD (A)
0.01
40
80
90
100
0.1
1
10
3780 G01
70
60
50
BURST
DCM
CCM
VIN = 6V
VOUT = 12V
ILOAD (A)
0.01
40
80
90
100
0.1
1
10
3780 G02
70
60
50
BURST
DCM
CCM
VIN = 12V
VOUT = 12V
ILOAD (A)
0.01
40
80
90
100
0.1
1
10
3780 G03
70
60
50
SC
DCM
CCM
VIN = 18V
VOUT = 12V
INPUT VOLTAGE (V)
05
0
1000
2500
10
20
25
3780 G04
500
2000
1500
15
30
35
VFCB = 0V
STANDBY
SHUTDOWN
INPUT VOLTAGE (V)
0
5.5
6.0
6.5
15
25
3780 G05
5.0
4.5
510
20
30
35
4.0
3.5
CURRENT (mA)
0
0
20
40
60
80
100
120
10
20
30
40
3780 G06
50
TEMPERATURE (°C)
–75 –50
5.55
5.60
5.70
5.75
5.80
6.05
5.90
0
50
75
3780 G07
5.65
5.95
6.00
5.85
–25
25
100 125
INTVCC VOLTAGE
EXTVCC SWITCHOVER THRESHOLD
TEMPERATURE (°C)
–75 –50 –25
0
2
5
0
50
75
3780 G08
1
4
3
25
100 125
LOAD CURRENT (A)
0
–0.2
–0.1
0
4
3780 G09
–0.3
–0.4
–0.5
1
2
3
5
VIN = 18V
FCB = 0V
VOUT = 12V
VIN = 12V
VIN = 6V



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