Data Sheet

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN5400 Family • Rev. 1.10 15
FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
Boost Mode Typical Characteristics
Unless otherwise specified, using circuit of Figure 1, V
BAT
=3.6 V, T
A
=25°C.
Figure 27. Boost PWM Waveform
Figure 28. Boost PFM Waveform
0
5
10
15
20
25
30
0 50 100 150 200 250 300
VBUS Ripple (mVpp)
VBUS Load Current (mA)
2.7VBAT
3.6VBAT
4.2VBAT
4.5VBAT
0
5
10
15
20
25
30
0 50 100 150 200 250 300
VBUS Ripple (mVpp)
VBUS Load Current (mA)
-30C, 3.6VBAT
+25C, 3.6VBAT
+85C, 3.6VBAT
Figure 29. Output Ripple vs. V
BAT
Figure 30. Output Ripple vs. Temperature