isl6530 Intersil Corporation, isl6530 Datasheet - Page 3

• Manufacturer Part Number: isl6530
• Description: Dual 5v Synchronous Buck Pulse-width Modulator Pwm Controller For Ddram Memory Vddq And Vtttermination
• Manufacturer: Intersil Corporation

Block Diagram
VREF_IN
SENSE1
SENSE2
COMP1
COMP2
V2_SD
VREF
FB1
FB2
PGOOD
+
-
3
REFERENCE
REGULATOR
WINDOW
0.8V
OCSET/SD
ERROR
ERROR
AMP
AMP
40µA
+
-
+
-
ISL6530
OSCILLATOR
90
COMPARATOR
COMPARATOR
+
-
CURRENT
o
Shift
OVER-
Phase
PWM
PWM
+
-
+
-
RESET (POR)
POWER-ON
START
SOFT-
INHIBIT
VCC
INHIBIT
PWM
PWM
GND
CONTROL
CONTROL
LOGIC
LOGIC
GATE
GATE
VCC
PVCC1
BOOT1
UGATE1
PHASE1
LGATE1
PGND1
BOOT2
UGATE2
PHASE2
LGATE2
PGND2
November 15, 2004
FN9052.2