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SC251 датащи(PDF) 14 Page - Semtech Corporation

номер детали SC251
подробное описание детали  Step-down DC-DC Converter with Bias LDO for WCDMA Amplifi ers
PDF  19 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC251 датащи(HTML) 14 Page - Semtech Corporation

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© 2006 Semtech Corp.
www.semtech.com
SC251
POWER MANAGEMENT
Efficiency vs. V
OUT
V
OUT vs. VDAC
V
OUT vs. IOUT
V
REF vs. VIN
Oscillator Frequency vs. V
IN
V
REF vs. IREF
0
10
20
30
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Vout(V)
IOUT=100mA
IOUT=600mA
VIN=4V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
VDAC(V)
VMODE=VIN
Pass-Through
VMODE=GND
1.550
1.555
1.560
1.565
1.570
1.575
1.580
1.585
1.590
1.595
1.600
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
IOUT(A)
VIN=4V
2.830
2.831
2.832
2.833
2.834
2.835
2.836
2.5 2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3 4.5
4.7
4.9
5.1
5.3
5.5
VIN (V)
IREF=5mA
850
875
900
925
950
975
1000
2.5
33.5
4
4.5
5
VIN (V)
TJ=-40°C
TJ=85°C
TJ=0°C
TJ=50°C
TJ=25°C
2.825
2.830
2.835
2.840
2.845
0.0001
0.0010
0.0100
IREF(A)
Typical Characteristics (Cont.)



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