ISL6420A Datasheet, PDF (5/21 Pages) Intersil Corporation – Advanced Single Synchronous Buck Pulse-Width Modulation PWM Controller

ISL6420A
Typical 5V Input DC/DC Application Schematic
5V ±10%
C₁
C₇
R₂
C₂
C₃
C₄
C₅
VIN PVCC
VCC5
D₁
ENSS
RT
CDEL
PGOOD
SGND
FB
MONITOR AND
PROTECTION
OSC
REF
-
+
+
-
OCSET ^R1
BOOT
Q₁
UGATE
C₈
PHASE
LGATE
Q₂
PGND
C6
L₁
C₉
2.5V/1.25V
R₃
COMP
C₁₀
GPIO1/REFIN <-- V_REF = VDDQ/2
C_{11 R5}
C₁₂
1.25V V_REF
TO REFIN OF VTT SUPPLY
R₄
VCC5
CONFIGURATION FOR DDR TERMINATION/EXTERNALLY REFERENCED TRACKING APPLICATIONS
Typical 5.5V to 28V Input DC/DC Application Schematic
5.5V to 28V
C₁
C7
R₂
C₂
C₃
C₄
C₅
VIN VCC5
PVCC
D₁
ENSS
RT
MONITOR AND
PROTECTION
CDEL
OSC
PGOOD
REF
SGND
-
FB
+
-
+
OCSET ^R1
BOOT
Q₁
UGATE
C₈
PHASE
LGATE
Q₂
PGND
C₆
L₁
C₉
R₃
COMP
C₁₀
C_{11 R5}
GPIO1/REFIN <-- V_REF = VDDQ/2
1.25V V_REF
TO REFIN OF VTT SUPPLY
2.5V/1.25V
R₄
VCC5
CONFIGURATION FOR DDR TERMINATION/EXTERNALLY REFERENCED TRACKING APPLICATIONS
5
FN9169.4
December 4, 2009