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| ISL6539 Datasheet, PDF (3/20 Pages) Intersil Corporation – Wide Input Range Dual PWM Controller with DDR Option | |||
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Generic Application Circuits
VIN
3.3V OR
5.0V TO 15V
OCSET1
EN1
EN2
VCC
5V
DDR
OCSET2
ISL6539
PWM1
PWM2
Q1
L1
+
Q2
C1
Q3
Q4
VOUT1
L2
+
C2
VOUT2
FIGURE 1. ISL6539 APPLICATION CIRCUIT FOR TWO CHANNEL POWER SUPPLY
VIN
3.3V OR
5.0V TO 15V
5V
VREF
OCSET1
EN1
EN2
VCC
DDR
PG2/VREF
PWM1
PWM2
Q1
L1
+
Q2
C1
VDDQ
OCSET2
Q3
L2
VTT
+
Q4
C2
FIGURE 2. ISL6539 APPLICATION CIRCUIT FOR COMPLETE DDR MEMORY POWER SUPPLY
3
FN9144.6
April 29, 2010
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