FAN5331 Fairchild Semiconductor, FAN5331 Datasheet - Page 4

• Manufacturer Part Number: FAN5331
• Description: The FAN5331 is a general purpose, fixed-frequency boost converter designed to operate at high switching frequencies in order to minimize switching noise measured at the battery terminal of hand-held communications equipment
• Manufacturer: Fairchild Semiconductor

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