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| ISL62871 Datasheet, PDF (22/25 Pages) Intersil Corporation – PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator | |||
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ISL62871, ISL62872
Typical Performance Curves (Continued)
EN
PGOOD
10s
SREF
VOUT
VOUT
PHASE
UGATE
LGATE
FIGURE 24. SHUT-DOWN, VIN = 12.6V, VOUT = 1.05V,
LOAD = OPEN-CIRCUIT
VOUT
PHASE
UGATE
LGATE
FIGURE 25. CCM STEADY-STATE OPERATION,
VIN = 12.6V, VOUT = 1.0V, IOUT = 10A
5ADC
+10AµF
15ADC
IOUT
-10AµF
VOUT
5ADC
PHASE
FIGURE 26. DCM STEADY-STATE OPERATION,
VIN = 12.6V, VOUT = 1.0V, IOUT = 3A
+10AµF
1ADC
11ADC
IOUT
VOUT
-10AµF
PHASE
1ADC
FIGURE 28. DCM LOAD TRANSIENT RESPONSE
VIN = 12.6V, VOUT = 1.0V
22
FIGURE 27. CCM LOAD TRANSIENT RESPONSE
VIN = 12.6V, VOUT = 1.0V
VOUT
VID0
SREF
VID1
FIGURE 29. VID TO SREF RESPONSE
VIN = 12.6V, VOUT = 950mV AND 1.05V,
IOUT = 10A
FN6707.0
August 14, 2008
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