Typical Performance Characteristics
T A = 25°C, Test Circuit Figure 3, unless otherwise noted.
300
14.98
14.96
Output Voltage vs Input Voltage
Maximum Load Current vs Input Voltage
210
180
250
12
V OU
15
=2
14.94
14.92
VIN(V)
vs
VOUT(V) at Iload=0mA
150
200
120
150
90
UT
V O
=
V
UT
V O
=
T
V
1V
14.90
14.88
VIN(V)
VIN(V)
VIN(V)
VIN(V)
VIN(V)
vs
vs
vs
vs
vs
VOUT(V), at load=10mA
VOUT(V), at load=20mA
VOUT(V) at Iload=30mA
VOUT(V) at Iload=40mA
VOUT(V) at Iload=50mA
100
60
50
30
14.86
0 0
2.5
3.0
3.5
4.0
4.5
5.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5 5.5
0.92
Input Voltage (V)
Efficiency vs Input Voltage
Input Voltage (V)
Feedback Voltage vs Ambient Temperature
0.90
0.88
0.86
0.84
0.82
0.80
1.25
1.24
1.23
1.22
I OUT = 15mA
0.78
VIN(V)
vs
Efficiency
at
Iload
=10mA
0.76
0.74
VIN(V)
VIN(V)
VIN(V)
VIN(V)
vs
vs
vs
vs
Efficiency
Efficiency
Efficiency
Efficiency
at
at
at
at
Iload
Iload
Iload
Iload
=20mA
=30mA
=40mA
=50mA
1.21
Temperature ( ° C) vs Vf (Vin=2.7V, Iload=15m A)
Temperature ( ° C) vs Vf (Vin=3.6V, Iload=15m A)
Temperature ( ° C) vs Vf (Vin=5.5V, Iload=15m A)
0.72
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-50
0
50
100
150
3.0
Input Voltage (V)
Supply Current vs Input Voltage
Ambient Temperature ( ° C)
Switching Frequency vs Ambient Temperature
2.5
I OUT = 0mA
1.8
I OUT = 15mA
V OUT = 15V
V IN = 3.6V
2.0
Switching
1.6
1.5
1.0
Non Switching
1.4
1.2
0.5
0.0
1.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-40
-20
0
20
40
60
80
100
120
140
FAN5331 Rev. 1.0.1
Input Voltage (V)
4
Ambient Temperature ( ° C)
www.fairchildsemi.com
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