ISL6444_07 Datasheet, PDF (2/19 Pages) Intersil Corporation – Dual PWM Controller with DDR Memory Option for Gateway Applications

Pinout
ISL6444
(28 LD QSOP)
TOP VIEW
GND 1
LGATE1 2
PGND1 ₃
PHASE1 4
UGATE1 ⁵
BOOT1 6
ISEN1 7
EN1 8
VOUT1 9
VSEN1 10
OCSET1 11
SOFT1 12
DDR ¹³
VIN ¹⁴
28 ^VCC
27 LGATE2
26 _PGND2
25 PHASE2
24 UGATE2
23 BOOT2
22 ISEN2
21 EN2
20 ^VOUT2
19 ^VSEN2
18 OCSET2
17 SOFT2
16 PG2/REF
15 PG1
ISL6444
Generic Application Circuits
OCSET1
PWM1
+V_IN =+5V... +24V
Q1
L1
Q2
C1
V_OUT1
(+1.8V)
OCSET2
PWM2
DDR
Q3
V_OUT2
L2
(+1.2V)
Q4
C2
ISL6444 APPLICATION CIRCUIT FOR TWO CHANNEL POWER SUPPLY
2
FN9069.3
April 12, 2007