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LTC3602 Scheda tecnica(PDF) 5 Page - Linear Technology

Il numero della parte LTC3602
Spiegazioni elettronici  Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator
PDF  28 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC3602 Scheda tecnica(HTML) 5 Page - Linear Technology

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LTC3633A-2/LTC3633A-3
5
3633a23f
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current
Burst Mode Operation
Efficiency vs Input Voltage
Burst Mode Operation
Load Regulation
Oscillator Frequency
vs Temperature
Efficiency vs Load Current
Burst Mode Operation
Efficiency vs Load Current
Forced Continuous Mode
Operation
Efficiency vs Load Current
TJ = 25°C, PVIN1 = PVIN2 = SVIN = 12V, fSW = 1MHz,
L = 1μH unless otherwise noted.
Oscillator Internal Set Frequency
vs Temperature
Reference Voltage
vs Temperature
0.001
0
10
30
40
50
70
0.1
10
3633a23 G01
20
80
100
90
60
0.01
1
LOAD CURRENT (A)
VOUT = 1.8V
VIN = 20V
VIN = 12V
VIN = 8V
VIN = 4V
0.001
0
10
30
40
50
70
0.1
10
3633a23 G02
20
80
100
90
60
0.01
1
LOAD CURRENT (A)
VIN = 20V
VIN = 12V
VIN = 8V
VIN = 4V
VOUT = 1.8V
0.001
0
10
30
40
50
70
0.1
10
3633a23 G03
20
80
100
90
60
0.01
1
LOAD CURRENT (A)
Burst Mode OPERATION
FORCED
CONTINUOUS
OPERATION
VOUT = 3.3V
VOUT = 5V
VOUT = 3.3V
VOUT = 5V
L = 2.2μH
4
65
70
75
85
8
20
3633a23 G05
60
90
100
95
80
6
1012141618
ILOAD = 10mA
ILOAD = 100mA
ILOAD = 1A
ILOAD = 3A
INPUT VOLTAGE (V)
VOUT = 1.8V
0.0001
0.001
0
10
30
40
50
70
0.1
10
3633a23 G04
20
80
100
90
60
0.01
1
LOAD CURRENT (A)
VIN = 20V
VIN =15V
VIN = 12V
VIN = 8V
VIN = 4V
VOUT = 1.2V
–50
0.597
0.599
50
150
3633a23 G06
0.595
0.601
0.605
0.603
25
–25
0
75
100 125
TEMPERATURE (°C)
0
0.0
0.4
1.5
3
3633a23 G07
–0.4
0.8
1.6
1.2
1
0.5
2
2.5
ILOAD (A)
Burst Mode OPERATION
FORCED CONTINUOUS
VOUT = 1.8V
–50
–8
–6
–4
–2
0
2
4
6
8
25
125
3633a23 G08
–10
10
0
–25
50
75
100
TEMPERATURE (°C)
–50
1.6
1.8
2.0
2.2
2.4
25
125
3633a23 G09
1.4
2.6
0
–25
50
75
100
TEMPERATURE (°C)
RT = INTVCC



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