isl6227 Intersil Corporation, isl6227 Datasheet - Page 2

• Manufacturer Part Number: isl6227
• Description: Dual Mobile-friendly Pwm Controller With Ddr Option
• Manufacturer: Intersil Corporation

Pinouts
Generic Application Circuits
+5V TO 28V
+1.25V
+5V TO +28V
VREF
V
IN
PHASE1
UGATE1
OCSET1
LGATE1
V
PGND1
BOOT1
VOUT1
VSEN1
SOFT1
IN
ISEN1
GND
DDR
EN1
VIN
10
12
13
14
11
1
2
3
4
5
6
7
8
9
+5V
+5V
28 LD QSOP
TOP VIEW
ISL6227 APPLICATION CIRCUIT FOR COMPLETE DDR MEMORY POWER SUPPLY
ISL6227
2
ISL6227 APPLICATION CIRCUIT FOR TWO CHANNEL POWER SUPPLY
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PG2/VREF
OCSET1
VCC
LGATE2
PGND2
PHASE2
UGATE2
BOOT2
ISEN2
EN2
VOUT2
VSEN2
OCSET2
SOFT2
PG2/REF
PG1
DDR
OCSET2
VCC
OCSET1
EN2
EN1
DDR
VCC
EN2
EN1
PWM1
PWM2
PWM1
PWM2
ISL6227
OCSET2
Q1
Q2
Q1
Q2
PHASE1
UGATE1
BOOT1
VOUT1
VSEN1
L1
ISEN1
EN1
C1
L1
+
C1
1
2
3
4
5
6
7
+
Q3
Q4
28 27 26 25 24 23 22
8
Q3
Q4
9 10 11 12 13 14
28 LD 5X5 QFN
TOP VIEW
ISL6227
GND
L2
29
C2
L2
+
C2
+
+1.25V
+2.50V
VDDQ
VTT
21
20
19
18
17
16
15
+1.80V
V
+1.20V
V
OUT1
OUT2
UGATE2
BOOT2
ISEN2
EN2
VOUT2
VSEN2
OCSET2
August 7, 2007
FN9094.5