FAN5355 Fairchild Semiconductor, FAN5355 Datasheet - Page 11

• Manufacturer Part Number: FAN5355
• Description: The FAN5355 device is a high-frequency, ultra-fast transient response, synchronous step-down DC-DC converter optimized for low-power applications using small, low-cost inductors and capacitors
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
FAN5355 • Rev. 1.1.0
Typical Performance Characteristics
Unless otherwise specified, Auto-PWM/PFM, V
1.816
1.814
1.812
1.810
1.808
1.806
1.804
1.802
1.800
1.798
1.064
1.062
1.060
1.058
1.056
1.054
1.052
1.050
1.048
70
65
60
55
50
45
40
35
30
Figure 15. Quiescent Current, I
2.0
Figure 11. Load Regulation at V
Figure 13. Load Regulation at V
1
1
2.5
Auto PWM/PFM
Forced PWM
Auto PWM/PFM
Forced PWM
3.0
I
I
LOAD
LOAD
10
10
VIN Input Voltage (V)
Output Current (m A)
Output Current (mA)
3.5
4.0
LOAD
100
100
OUT
OUT
= 0, EN = 1.8V
4.5
VSEL = 1.8V
VSEL = 0V
IN
= 1.05V
= 1.80V
= 3.6V, T
5.0
1000
A
1000
= 25°C, and recommended components as specified in Table 1.
5.5
11
Figure 14. % V
-0.05%
-0.10%
-0.15%
-0.20%
-0.25%
-0.30%
1.364
1.362
1.360
1.358
1.356
1.354
1.352
1.350
1.348
0.10%
0.05%
0.00%
Figure 16. Shutdown Current, I
6.0
5.0
4.0
3.0
2.0
1.0
Figure 12. Load Regulation at V
-40
1
2.5
Auto PWM/PFM
Forced PWM
-20
OUT
3.0
Shift vs. Temperature (Normalized)
VSEL = 1.8V
VSEL = 0V
I
LOAD
0
10
3.5
V
IN
Temperature (C)
Output Current (mA)
Input Voltage (V)
20
4.0
LOAD
40
4.5
100
OUT
= 0, EN = 0
VIN = 2.7V
VIN = 3.6V
VIN = 5.5V
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= 1.35V
60
5.0
80
5.5
1000