ISL62870 Datasheet, PDF (15/16 Pages) Intersil Corporation – PWM DC/DC Voltage Regulator Controller

Typical Performance (Continued)
EN
PGOOD
ISL62870
SREF
VOUT
VOUT
PHASE
UGATE
10s
LGATE
FIGURE 19. SHUT-DOWN, V_IN = 12.6V, V_OUT = 1.05V,
LOAD = OPEN-CIRCUIT
FIGURE 20. CCM STEADY-STATE OPERATION,
V_IN = 12.6V, V_OUT = 1.0V, I_OUT = 10A
VOUT
PHASE
UGATE
LGATE
FIGURE 21. DCM STEADY-STATE OPERATION,
V_IN = 12.6V, V_OUT = 1.0V, I_OUT = 3A
5ADC
+10A/µ
15ADC
IOUT
-10A/¬
VOUT
5ADC
PHASE
FIGURE 22. CCM LOAD TRANSIENT RESPONSE
V_IN = 12.6V, V_OUT = 1.0V
+10A/µ
1ADC
11ADC
IOUT
VOUT
-10A/µ
PHASE
1ADC
FIGURE 23. DCM LOAD TRANSIENT RESPONSE V_IN = 12.6V, V_OUT = 1.0V
15
FN6708.0
August 14, 2008