LTC3609IWKG-TRPBF(RevB) データシートの表示（PDF） - Linear Technology
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LTC3609IWKG-TRPBF
(Rev.:RevB)
(Rev.:RevB)
Linear Technology
LTC3609IWKG-TRPBF Datasheet PDF : 26 Pages
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Typical Performance Characteristics
LTC3609
Efficiency vs Load Current
100
90
80
70
VOUT = 5V
VOUT = 3.3V
60
VOUT = 2.5V
50
VOUT = 1.8V
VOUT = 1.5V
40
VOUT = 1.2V
VOUT = 1V
30
20
10 VIN = 12V
FREQUENCY = 550kHz
0
0.01
0.1
1
LOAD CURRENT (A)
10
3609 G04
Frequency vs Load Current
700
600
CONTINUOUS MODE
500
400
300
DISCONTINUOUS MODE
200
100
0
0
2
4
6
8
LOAD CURRENT (A)
3609 G07
Load Current vs ITH Voltage at
Different VRNG
15
VRNG = 1.2V
10
5
VRNG = 0.7V
0
VRNG = 1V
–5
Efficiency vs Input Voltage
100 FCB = 5V
FIGURE 6 CIRCUIT
95
ILOAD = 6A
90
ILOAD = 1A
85
80
5
8 11 14 17 20 23 26 29 32
INPUT VOLTAGE (V)
3609 G05
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
LOAD CURRENT (A)
8
3609 G08
On-Time vs ION Current
10000
VVON = 0V
1000
100
–10
0
0.5 1.0 1.5
ITH VOLTAGE (V)
2.0 2.5
3609 G10
10
1
10
ION CURRENT (µA)
100
3609 G11
Frequency vs Input Voltage
650
600
ILOAD = 6A
550
500
ILOAD = 1A
450
FCB = 0V
FIGURE 6 CIRCUIT
400
5 8 11 14 17 20 23 26
INPUT VOLTAGE (V)
29 32
3609 G06
ITH Voltage vs Load Current
2.5
FIGURE 6 CIRCUIT
2.0
1.5
CONTINUOUS
MODE
1.0
0.5 DISCONTINUOUS
MODE
0
0
2
4
6
LOAD CURRENT (A)
8
3609 G09
On-Time vs VON Voltage
1000 ION = 30µA
800
600
400
200
0
0
1
2
VON VOLTAGE (V)
3
3609 G12
3609fb
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