LTC3608(RevC) Просмотр технического описания (PDF) - Linear Technology
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LTC3608 Datasheet PDF : 26 Pages
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Typical Performance Characteristics
LTC3608
Efficiency vs Load Current
100
90
80
70
60
50
40
30
20
10 VIN = 12V
FREQ = 550kHz
0
0.01
0.1
VOUT = 5V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.2V
VOUT = 1V
1
10
LOAD CURRENT (A)
3608 G04
Efficiency vs Input Voltage
100
FCB = 5V
FIGURE 6 CIRCUIT
95
ILOAD = 10A
90
ILOAD = 1A
85
80
5
10
15
INPUT VOLTAGE (V)
20
3608 G05
Frequency vs Load Current
700
600
CONTINUOUS MODE
500
400
DISCONTINUOUS MODE
300
200
100
0
0
2
4
6
8
10
LOAD CURRENT (A)
3608 G07
Load Regulation
0.80 FIGURE 6 CIRCUIT
0.60
0.40
0.20
0
–0.20
–0.40
–0.60
–0.80
0
2
4
6
8
10
LOAD CURRENT (A)
3608 G08
Load Current
vs ITH Voltage and VRNG
25
VRNG = 1V
20
0.7V
15
0.5V
10
5
0
–5
–10
0
0.5 1.0 1.5 2.0
ITH VOLTAGE (V)
2.5 3.0
3608 G10
On-Time vs ION Current
10000
VVON = 0V
1000
100
10
1
10
ION CURRENT (µA)
100
3608 G11
Frequency vs Input Voltage
650
FCB = 0V
FIGURE 6 CIRCUIT
600
ILOAD = 10A
550
500
ILOAD = 1A
450
400
5
10
15
INPUT VOLTAGE (V)
20
3608 G06
ITH Voltage vs Load Current
2.5
2.0
1.5
CONTINUOUS
MODE
1.0
DISCONTINUOUS
0.5
MODE
0
0
5
10
LOAD CURRENT (A)
3608 G09
On-Time vs VON Voltage
1000 ION = 30µA
800
600
400
200
0
0
1
2
VON VOLTAGE (V)
3
3608 G12
3608fc
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