MAX15048 Ver la hoja de datos (PDF) - Maxim Integrated
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componentes Descripción
Fabricante
MAX15048 Datasheet PDF : 31 Pages
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MAX15048/MAX15049
Triple-Output Buck Controllers
with Tracking/Sequencing
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 12V or VIN = VREG = 5V, VDREG_ = VREG, VPGND_ = 0V, CREG = 2.2FF, RRT = 39.2kI, TA = -40NC to +85NC, unless otherwise
noted. Typical values are at TA = TJ = +25NC.) (Note 2)
PARAMETER
ENABLE/PGOOD
EN_ Threshold
EN_ Threshold Hysteresis
EN_ Input Bias Current
PGOOD Threshold
PGOOD Hysteresis
PGOOD Output Low Level
PGOOD Leakage
THERMAL SHUTDOWN
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
SYMBOL
CONDITIONS
VEN-TH EN_ rising
FB_ rising
Sinking 3mA
VPGOOD = 5V
Temperature rising
MIN TYP MAX UNITS
0.57 0.60 0.63
V
46
mV
-1
+1
FA
0.545 0.550 0.555
V
30
mV
0.1
V
-1
+1
FA
+160
NC
20
NC
Note 2: 100% production tested at TA = TJ = +25NC and TA = TJ = +85NC. Limits at other temperatures are guaranteed by
design.
Note 3: For 5V applications, connect REG directly to IN.
Typical Operating Characteristics
(VIN = 12V, VDREG_ = VREG, VPGND_ = 0V, CREG = 2.2FF, RRT = 39.2kI, TA = +25NC, unless otherwise noted. See Figure 10.)
100
90
80
70
60
50
40
30
20
10
0
0
CONVERTER 1 EFFICIENCY
vs. LOAD CURRENT
VIN = 12V
VIN = 5V
VOUT1 = 3.3V
0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
100
90
80
70
60
50
40
30
20
10
0
0
CONVERTER 2 EFFICIENCY
vs. LOAD CURRENT
VIN = 12V
VIN = 5V
VOUT2 = 1.8V
0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
100
90
80
70
60
50
40
30
20
10
0
0
CONVERTER 3 EFFICIENCY
vs. LOAD CURRENT
VIN = 12V
VIN = 5V
VOUT3 = 1.2V
123456
LOAD CURRENT (A)
4
Maxim Integrated
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