ISL8010 Datasheet, PDF (8/12 Pages) Intersil Corporation – Monolithic 600mA Step-Down Regulator with Low Quiescent Current

ISL8010
Performance Curves and Waveforms (Continued)
All waveforms are taken at V_IN = 3.3V, V_O = 1.8V, I_O = 600mA with component values shown on page 1 at room ambient temperature, unless
otherwise noted.
3
PG
2
1
I_O
0
-1
PFM
PWM
-2
V_O
-3
0
200 400 600 800 1000 1200
I_OUT (mA)
FIGURE 24. PFM-PWM TRANSITION
FIGURE 25. PFM-PWM LOAD TRANSIENT
PG
PG
I_O
I_O
V_O
V_O
FIGURE 26. PFM TO PWM TRANSITION
PG
I_L
V_O
FIGURE 27. PWM TO PFM TRANSITION
PG
I_L
V_O
FIGURE 28. OVERCURRENT SHUTDOWN
8
FIGURE 29. OVERCURRENT HICCUP MODE
FN6191.0
September 27, 2005