LTC3528-2 데이터 시트보기 (PDF) - Linear Technology
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LTC3528-2 Datasheet PDF : 18 Pages
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LTC3528-2
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted)
Efficiency vs Load Current
and VIN for VOUT = 3.3V
100
1000
EFFICIENCY
90
100
80
70
10
60
POWER
LOSS
1
50
40
30
0.01
VIN = 1.2V
VIN = 1.8V
0.1
VIN = 2.4V
VIN = 3V 0.01
0.1
1
10 100 1000
LOAD CURRENT (mA)
35282 G02
Efficiency vs Load Current
and VIN for VOUT = 5V
100
1000
EFFICIENCY
90
100
80
70
60
50
40
30
0.01
10
POWER
LOSS
VIN = 1.2V 1
VIN = 2.4V
VIN = 3.6V
VIN = 4.2V 0.1
0.1
1
10
100 1000
LOAD CURRENT (mA)
35282 G03
Maximum Output Current vs VIN
800
700
600
500
400
300
200
VOUT = 1.8V
100
VOUT = 3.3V
VOUT = 5V
0
1 1.5 2 2.5 3 3.5 4 4.5
VIN (V)
35282 G05
Minimum Load Resistance During
Start-Up vs VIN
10000
1000
100
10
0.7
0.8
0.9
VIN (V)
1
35282 G06
Burst Mode Threshold Current
vs VIN
80
VOUT = 1.8V
Burst Mode Threshold Current
vs VIN
80
VOUT = 3V
No-Load Input Current vs VIN
130
110
90
70
VOUT = 1.8V
50
VOUT = 3V
VOUT = 3.3V
VOUT = 5V
30
10
1
2
3
4
5
VIN (V)
35282 G04
Start-Up Delay Time vs VIN
130
120
110
100
90
80
70
60
50
1 1.5 2 2.5 3 3.5 4 4.5
VIN (V)
35282 G07
Burst Mode Threshold Current
vs VIN
80
VOUT = 3.3V
60
EXIT BURST
40
ENTER BURST
20
60
EXIT BURST
40
ENTER BURST
20
60
EXIT BURST
40
ENTER BURST
20
0
1
1.1
1.2
1.3
1.4
1.5
0
1
VIN (V)
35282 G08
4
1.5
2
VIN (V)
2.5
35282 G09
0
1
1.5
2
2.5
3
VIN (V)
35282 G10
35282fb
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