ISL78200 Datasheet, PDF (5/19 Pages) Intersil Corporation – 2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter

ISL78200
Typical Application Schematic I
PGOOD
EN
MODE
SYNC
AUXVCC
VIN
BOOT
VCC
ILIMIT
SS
ISL78200 _PHASE
LGATE
PGND
EXT_BOOST
FS
SGND
FB
COMP
VIN
VOUT
PGOOD
EN
MODE
SYNC
AUXVCC
VIN
BOOT
VCC
ILIMIT
SS
ISL78200 _PHASE
LGATE
PGND
EXT_BOOST
FS
SGND
FB
COMP
VIN
VOUT
FIGURE 3A. SYNCHRONOUS BUCK
FIGURE 3B. NON-SYNCHRONOUS BUCK
Typical Application Schematic II - V_CC Switch Over to V_OUT
PGOOD
EN
VIN
VIN
MODE
SYNC
AUXVCC
BOOT
PGOOD
EN
VIN
VIN
MODE
SYNC
AUXVCC
BOOT
VCC
ILIMIT
SS
ISL78200 _PHASE
LGATE
PGND
VOUT
VCC
ILIMIT
SS
ISL78200 _PHASE
LGATE
PGND
EXT_BOOST
FS
SGND
FB
COMP
EXT_BOOST
FS
SGND
FB
COMP
VOUT
FIGURE 4A. SYNCHRONOUS BUCK
FIGURE 4B. NON-SYNCHRONOUS BUCK
Typical Application Schematic III - Boost Buck Converters
Battery
R1
+
+
R2
PGOOD
EN
MODE
SYNC
VCC
ILIMIT
SS
EXT_BOOST
LGATE
AUXVCC
ISL78200
VIN
BOOT
PHASE
FS
SGND
PGND
FB
COMP
R3
R4
VOUT
5
FN7641.0
September 22, 2011