SC1454 Просмотр технического описания (PDF) - Semtech Corporation
Номер в каталоге
Компоненты Описание
производитель
SC1454 Datasheet PDF : 14 Pages
| |||
SC1454
POWER MANAGEMENT
Typical Characteristics (Cont.)
Quiescent Current vs. Junction Temperature
200
VIN = 6.5V
175
vs. Output Current
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
1.2
VIH @ VIN = 4V
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
2.00
1.75
CBYP = 10nF
vs. Input Voltage
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. Output Voltage
10
Top to bottom:
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.8V
1
VOUT = 2.5V
VOUT = 1.8V
VIN = VOUT + 1V
0.1 IOUT = 50mA
CIN = 1µF
CBYP = 10nF
COUT = 2.2µF
TJ = 25°C
0.01
0.01
0.1
1
10
f (kHz)
100
1000
2005 Semtech Corp.
10
www.semtech.com
Share Link: 