FAN5350 Fairchild Semiconductor, FAN5350 Datasheet - Page 9

• Manufacturer Part Number: FAN5350
• Description: The FAN5350 is a step-down switching voltage regulator that delivers a fixed 1
• Manufacturer: Fairchild Semiconductor

© 2007 Fairchild Semiconductor Corporation
FAN5350 Rev. 1.0.5
Typical Performance Characteristics
V
IN
Figure 12. DC Current Voltage Output Characteristics
= 3.6V, T
Figure 8. Quiescent Current vs. Battery Voltage
600
500
400
300
200
100
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
24
22
20
18
16
14
12
10
0
Figure 10. Switch Mode Operating Areas
2.5
0
2.5
0
Hysteresis
A
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
= 25°C, V
Continuous Conduction Mode
Discontinuous Conduction Mode
3.0
3.0
Battery Voltage (V)
Battery Voltage (V)
Load Current (A)
3.5
3.5
EN
V
IN
=3.6V
= V
IN
4.0
4.0
, according to the circuit in Figure 1 or Figure 2, unless otherwise specified.
V
IN
=2.7V
4.5
4.5
+85°C
Switching mode
changes at these
borders
-40°C
5.0
5.0
+25°C
V
IN
=5.5V
5.5
5.5
9
1850
1840
1830
1820
1810
1800
1790
Figure 9. Load Regulation, Increasing Load
600
500
400
300
200
100
1835
1830
1825
1820
1815
1810
1805
1800
Figure 13. Output Voltage vs. Temperature
Figure 11. Switch Mode Over Temperature
0
-40
2.5
0
-30°C DCM border
85°C CCM border
-30°C CCM border
85°C DCM border
DCM spreading
100
-20
3.0
V
IN
Ambient Temperature (°C)
=3.6V
Load Current (m A)
Battery Voltage (V)
200
3.5
0
300
20
4.0
CCM
V
IN
=2.7V
V
IN
400
=5.5V
40
4.5
I
500
LOAD
60
=300mA
5.0
www.fairchildsemi.com
600
80
5.5