MAX15048 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX15048 Datasheet PDF : 31 Pages
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MAX15048/MAX15049
Triple-Output Buck Controllers
with Tracking/Sequencing
Typical Operating Characteristics (continued)
(VIN = 12V, VDREG_ = VREG, VPGND_ = 0V, CREG = 2.2FF, RRT = 39.2kI, TA = +25NC, unless otherwise noted. See Figure 10.)
3.330
3.328
3.325
3.323
3.320
3.318
3.315
3.313
3.310
3.308
3.305
3.303
3.300
0
CONVERTER 1 OUTPUT VOLTAGE
vs. LOAD CURRENT
VIN = 5V
VIN = 12V
VOUT1 = 3.3V
0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
SWITCHING FREQUENCY vs. RRT
1200
1100
1000
900
800
700
600
500
400
300
200
15.60
31.22
46.84 62.46
RRT (kI)
VIN = 12V
78.08 93.70
ERROR AMP TRANSCONDUCTANCE
vs. TEMPERATURE
3.0
2.8
VCOMP_ = 2V
VFB_ = 0.6V ± 0.02V
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
-40 -28 -15 -3 10 23 35 48 60 73 85
TEMPERATURE (°C)
CONVERTER 2 OUTPUT VOLTAGE
vs. LOAD CURRENT
1.810
1.809
1.808
1.807
VIN = 5V
1.806
1.805
1.804
VIN = 12V
1.803
1.802
1.801
1.800
0
VOUT2 = 1.8V
0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
SWITCHING-FREQUENCY ACCURACY
vs. TEMPERATURE
0.5
fSW = 500kHz
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-40 -28 -15 -3 10 23 35 48 60 73 85
TEMPERATURE (°C)
VALLEY CURRENT LIMIT
vs. TEMPERATURE
95
VIN = 12V
90
85
80
75
70
65
60
55
50
45
40
-40 -28 -15 -3 10 23 35 48 60 73 85
TEMPERATURE (°C)
Maxim Integrated
CONVERTER 3 OUTPUT VOLTAGE
vs. LOAD CURRENT
1.200
1.199
1.198
VIN = 12V
1.197
1.196
1.195
VIN = 5V
1.194
1.193
1.192
1.191
1.190
0
VOUT3 = 1.2V
123456
LOAD CURRENT (A)
5.10
5.05
5.00
4.95
4.90
4.85
4.80
4.75
4.70
4.65
4.60
4.55
4.50
4.70
REG OUTPUT VOLTAGE
vs. INPUT VOLTAGE
IREG = 60mA
8.36 12.02 15.68 19.34 23.00
INPUT VOLTAGE (V)
DL1 AND DH1 PEAK
SOURCE-AND-SINK CURRENT
MAX15048 toc12
CLOAD = 10nF
200ns/div
IDL1
(1A/div)
IDH1
(1A/div)
5
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