ISL78236 Datasheet, PDF (5/24 Pages) Intersil Corporation – Dual 3A Current Sharing 2.5MHz High Efficiency Synchronous Buck Regulator

Block Diagram
ISL78236
COMP
SS
EN1
SOFT-
S TSATTRA TR
SHUTDOWN
BANDGAP ^0.8V
+
EAMP
27pF
390k
+
PWM
COMP
FB1
1.6k
3pF
SLOPE
COMP
+
0.5V
SCP
+
0.3pF
0.864V
+
PG1
SGND
+
V IN 1
0.736V
1M
1ms
DELAY
THERMAL
SHUTDOWN
O SCILLATOR
SHUTDOWN
EN2
SS
SOFT-
SSTTATARRT
SHUTDOWN
BANDGAP ^0.8V
+
EAMP
27pF
390k
0 .3 p F
+
COMP
FB2
1.6k
3pF
SLOPE
COMP
+
0.5V
SCP
+
0.864V
+
PG2
SGND
VIN2
+
0.736V
1M
1ms
DELAY
SHUTDOWN
PWM
L O G IC
CONTROLLER
P R O T E C T IO N
D R IV E R
+
CSA1
OCP
THRESHOLD
L O G IC
SHUTDOWN
PWM
L O G IC
CONTROLLER
PROTECTIO N
D R IV E R
+
CSA2
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5
VIN1
LX1
PGND
SYNC
VIN2
LX2
PGND
FN8624.0
April 28, 2014