LTC1704B Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
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LTC1704B
Linear Technology
LTC1704B Datasheet PDF : 28 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC1704/LTC1704B
VOUTSW vs Load Current
2.0
1.5
IIMAX vs Temperature
–8.5
VCC = 5V
–9.0
–9.5
IIMAX vs VCC
–8.5
TA = 25°C
–9.0
–9.5
1.0
–10.0
–10.0
0.5
VIN = 5V
VOUTSW = 1.8V
TA = 25°C
RIMAX = 13.7k
QT = QB = 2xFDS6670A
0
0
4
8
12
16
20
LOAD CURRENT (A)
1704 G09
–10.5
–11.0
–11.5
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1704 G10
–10.5
–11.0
–11.5
3 3.5 4 4.5 5
VCC (V)
5.5 6
1704 G11
fOSC vs Temperature
640
VCC = 5V
620
600
580
560
540
520
500
480
460
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1704 G12
fOSC vs VCC
650
TA = 25°C
610
570
530
490
450
3 3.5 4 4.5 5
VCC (V)
5.5 6
1704 G13
Maximum TG Duty Cycle
vs Temperature
93
VCC = 5V
TG, BG FLOAT
92
91
90
89
88
87
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1704 G10
Drivers Rise and Fall Time
vs Load
100
TA = 25°C
90 PVCC = BOOST = 5V
80
70
60
VREGFB vs Temperature
0.820
VREGDR = 3.3V
0.815
0.810
0.805
50
0.800
40
0.795
30
0.790
20
10
0.785
0
0.780
0 2000 4000 6000 8000 10000
– 50 – 25 0 25 50 75
TG, BG LOAD (pF)
TEMPERATURE (°C)
1704 G15
100 125
LTXXX • TPCXX
VREGFB Line Regulation
1.6
TA = 25°C
1.2 VREGDR = 0.8V
0.8
0.4
0
–0.4
–0.8
–1.2
–1.6
3 3.5 4 4.5 5
VCC (V)
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
5.5 6
1704 G17
1704bfa
5
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