SC251EVB SEMTECH [Semtech Corporation], SC251EVB Datasheet - Page 15

• Manufacturer Part Number: SC251EVB
• Description: Step-down DC-DC Converter with Bias LDO for WCDMA Amplifi ers
• Manufacturer: SEMTECH [Semtech Corporation]

Typical Characteristics (Cont.)
POWER MANAGEMENT
© 2006 Semtech Corp.
1150
1100
1050
1000
0.40
0.35
0.30
0.25
0.20
0.15
0.10
950
-0.5
900
850
1.5
0.5
2
1
0
-40
-40
-40
Oscillator Frequency vs. Temperature
PASS FET Leakage vs. Input Voltage
-25
-20
-10
-15
0
R
5
DSON
20
20
vs. Temperature
10
Temperature(
40
35
T
T
J
J
(° C)
(°C)
50
60
°
C)
35
65
V
V
80
IN
IN
Bypass FET
V
V
PMOS
=3.5V
=2.7V
IN
IN
=5V
=4V
80
100
60
95
NMOS
V
120
IN
110
=4V
125
140
85
15
0.35
0.25
0.15
-0.5
0.3
0.2
0.1
1.5
0.5
6
5
4
3
2
1
0
2
1
0
2.5
-40
2.5
PMOS FET Leakage vs. Tempera
Dynamic Supply Current vs. V
3
-15
3
3.5
R
3.5
10
DSON
V
V
T
IN
IN
J
4
vs. V
(V)
(°C)
(V)
35
4
IN
Bypass FET
V
V
4.5
V
V
IN
IN
IN
IN
NMOS
=3.5V
=2.7V
PMOS
=5V
=4V
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60
4.5
ture
IN
SC251
5
25
°
C
5.5
85
5