ISL6225 Datasheet, PDF (6/19 Pages) Intersil Corporation – Dual Mobile-Friendly PWM Controller with DDR Memory Option

Generic Application Circuits
ISL6225
ENABLE OCSET1
+V_IN
+3.3V TO +24V
+5V
EN1
EN2
VCC
DDR
OCSET2
PWM1
PWM2
Q1
L1
+
Q2
C1
V_OUT1
+1.80V
Q3
L2
V_OUT2
+1.20V
+
Q4
C2
FIGURE 1. ISL6225 APPLICATION CIRCUIT FOR TWO CHANNEL POWER SUPPLY
ENABLE OCSET1
+V_IN
+3.3V TO +24V
+5V
EN1
EN2
VCC
DDR
PG2/VREF
PWM1
PWM2
Q1
L1
+
Q2
C1
VDDQ
+2.50V
OCSET2
Q3
L2
VTT
+1.25V
+
Q4
C2
VREF
+1.25V
FIGURE 2. ISL6225 APPLICATION CIRCUIT FOR COMPLETE DDR MEMORY POWER SUPPLY
6
FN9049.7
December 28, 2004