ISL85403 データシートの表示（PDF） - Intersil
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ISL85403 Datasheet PDF : 24 Pages
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ISL85403
Typical Application Schematic I
PGOOD
EN
MODE
SYNC
AUXVCC
VIN
BOOT
VCC
ILIMIT
SS
ISL85403 PHASE
LGATE
EXT_BOOST
FS
SGND
PGND
FB
COMP
VIN
VOUT
PGOOD
EN
MODE
SYNC
AUXVCC
VIN
BOOT
VCC
ILIMIT
SS
ISL85403 PHASE
LGATE
PGND
EXT_BOOST
FS
SGND
FB
COMP
VIN
VOUT
(a) SYNCHRONOUS BUCK
(b) NON-SYNCHRONOUS BUCK
Typical Application Schematic II - VCC Switchover to VOUT
PGOOD
EN
VIN
VIN
MODE
SYNC
AUXVCC
BOOT
PGOOD
EN
VIN
VIN
MODE
SYNC
AUXVCC
BOOT
VCC
ILIMIT
SS
ISL85403 PHASE
LGATE
EXT_BOOST
FS
SGND
PGND
FB
COMP
VOUT
VCC
ILIMIT
SS
ISL85403 PHASE
LGATE
PGND
EXT_BOOST
FS
SGND
FB
COMP
VOUT
(a) SYNCHRONOUS BUCK
(b) NON-SYNCHRONOUS BUCK
Typical Application Schematic III - Boost Buck Converter
Battery
R1
+
+
R2
PGOOD
EN
MODE
SYNC
VCC
ILIMIT
SS
EXT_BOOST
LGATE
AUXVCC
ISL85403
VIN
BOOT
PHASE
FS
SGND
PGND
FB
COMP
R3
R4
VOUT
PGOOD
EN
SYNC
EXT_BOOST
AUXVCC
VIN
VCC
ILIMIT
SS
FS
SGND
BOOT
ISL85403 PHASE
PGND
LGATE
FB
COMP
1M
130k
VCC
VIN
VOUT
(a) 2-STAGE BOOST BUCK
(b) NON-INVERTING SINGLE INDUCTOR BUCK BOOST
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6
FN8631.1
March 13, 2015
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