SC1454-28IMSTR Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC1454-28IMSTR Datasheet PDF : 14 Pages
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SC1454
POWER MANAGEMENT
Typical Characteristics (Cont.)
Quiescent Current vs. Junction Temperature
vs. Output Current
200
VIN = 6.5V
175
IOUTA = IOUTB = 150mA
150
125
100
IOUTA or IOUTB = 150mA
75
50
25
0
-50
-25
0
25
50
75
100
125
TJ (°C)
Enable Input Voltage vs. Junction Temperature
vs. Input Voltage
1.6
VIH @ VIN = 6.5V
1.4
VIH @ VIN = 4V
1.2
1.0
VIL @ VIN = 6.5V
0.8
VIL @ VIN = 4V
0.6
0.4
-50
-25
0
25
50
75
100
125
TJ (°C)
Bypass Start-up Rise Time vs. Junction Temperature
vs. Input Voltage
2.00
1.75
CBYP = 10nF
1.50
1.25
VIN = 3.8V
1.00
0.75
VIN = 6.5V
0.50
0.25
0.00
-50
-25
0
25
50
75
100
125
TJ (°C)
Quiescent Current vs. Junction Temperature
vs. Input Voltage
200
IOUTA = IOUTB = 150mA
175
150
125
Top to bottom:
100
VIN = 6.5V
VIN = 5V
75
VIN = 3.8V
50
25
0
-50
-25
0
25
50
75
100
125
TJ (°C)
Sense/Select Threshold Voltage vs.
Junction Temperature vs. Input Voltage
80
70
60
VIN = 6.5V
50
40
VIN = 3.8V
30
20
10
0
-50
-25
0
25
50
75
100
125
TJ (°C)
Output Spectral Noise Density vs. Frequency
vs. Bypass Capacitance
10000
1000
CBYP = 10nF
VIN = 2.8V
VOUT = 1.8V
IOUT = 50mA
CIN = 1µF
COUT = 2.2µF
TA = 25°C
100
CBYP = 100nF
10
1.E+01
1.E+02
1.E+03
1.E+04
f (Hz)
1.E+05
1.E+06
ã 2000 Semtech Corp.
10
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