Typical Characteristics
Unless otherwise specified; V IN =5 V, V OUT =1.2 V, V MODE =0 V, T A =25°C, circuit in Figure 1, and components per Table 1.
60
50
40
30
50
40
30
20
20
10
-40C
+25C
+85C
10
0
-40C
+25C
+85C
2.5
3.0
3.5
4.0
4.5
5.0
5.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Figure 16. Quiescent Current, Auto Mode, EN=V IN
Input Voltage (V)
Figure 17. Quiescent Current, PMW Mode, EN=V IN
70
60
50
40
1.2VOUT,
25mA Load
1.2VOUT,
1.0A Load
3.3VOUT,
1.0A Load
100%
95%
90%
85%
30
20
10
80%
75%
70%
1.2 VOUT, L=SC2511
1.2 VOUT, L=IHLP16
1.8 VOUT, L=SC2511
1.8 VOUT, L=IHLP16
3.3 VOUT, L=SC2511
3.3 VOUT, L=IHLP16
10
100
1,000
10,000
100,000
0
1000
2000
3000
4000
5000
Frequency (Hz)
Figure 18. Power Supply Rejection (PSRR)
Figure 20. Line Transient, 50 ? Load, t R =t F =10 ? s
? 2011 Fairchild Semiconductor Corporation
FAN53540 ? Rev. 1.0.3
8
Load Current (mA)
Figure 19. Inductor Efficiency Comparison, 5.0 V IN
Figure 21. Line Transient, I LOAD =1.0 A, t R =t F =10 ? s
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