ISL6530/31EVAL1 INTERSIL [Intersil Corporation], ISL6530/31EVAL1 Datasheet - Page 3

• Manufacturer Part Number: ISL6530/31EVAL1
• Description: Dual 5V Synchronous Buck Pulse-Width Modulator (PWM) Controller for DDRAM Memory VDDQ and VTT Termination
• Manufacturer: INTERSIL [Intersil Corporation]

Block Diagram
VREF_IN
SENSE1
SENSE2
COMP1
V2_SD
VREF
FB1
PGOOD
+
-
3
Z
REFERENCE
f
REGULATOR
WINDOW
0.8V
OCSET/SD
ERROR
ERROR
AMP
AMP
40µA
+
+
-
-
Z
ISL6531
c
OSCILLATOR
90
COMPARATOR
+
COMPARATOR
-
CURRENT
o
Shift
OVER-
Phase
PWM
PWM
+
-
+
-
RESET (POR)
POWER-ON
START
SOFT-
INHIBIT
INHIBIT
VCC
PWM
PWM
GND
CONTROL
CONTROL
LOGIC
LOGIC
GATE
GATE
VCC
PVCC1
BOOT1
UGATE1
PHASE1
LGATE1
PGND1
BOOT2
UGATE2
PHASE2
LGATE2
PGND2