sc250wltrt Semtech Corporation, sc250wltrt Datasheet - Page 13

• Manufacturer Part Number: sc250wltrt
• Description: Sc250 Step-down Dc-dc Converter With Bias Ldo For Rf Power Amplifiers
• Manufacturer: Semtech Corporation

© 2006 Semtech Corp.
POWER MANAGEMENT
Typical Characteristics (Cont.)
2.85
2.75
2.65
1.56
1.54
1.52
1.48
1.46
2.5
1.5
0.5
1.5
2.9
2.8
2.7
2.6
3
2
1
0
-60
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
1
Maximum Output Current, V
-40
V
OUT
I
1.1
OUT
=10mA
V
V
vs. Temperature (V
IN
IN
-20
=4.5V
=5.0V
1.2
I
I
0
OUT
OUT
V
=100mA
=300mA
REF
I
V
T
OUT
A
IN
vs. V
1.3
20
(°C)
(V)
(A)
V
IN
=4.0V
IN
V
40
IN
=3.5V
1.4
OUT
I
OUT
= 1.5V)
OUT
60
=600mA
= 2.5V
1.5
80
100
1.6
13
2.865
2.855
2.845
2.835
3.26
3.24
3.22
3.18
3.16
2.86
2.85
2.84
3.2
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
-60
2
1
0
0
1
Maximum Output Current, V
-40
V
OUT
1.1
0.005
V
V
vs. Temperature (V
IN
-20
IN
I
=4.5V
OUT
=5.0V
=100mA
1.2
0
I
OUT
V
0.01
REF
=10mA
T
I
I
OUT
A
REF
vs. I
20
1.3
I
(°C)
OUT
(A)
(A)
=300mA
V
IN
REF
0.015
=4.0V
V
IN
40
=3.5V
OUT
1.4
PRELIMINARY
= 3.2V)
I
OUT
60
OUT
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=600mA
0.02
= 1.8V
SC250
1.5
80
0.025
100
1.6