ISL6420IR-T Intersil, ISL6420IR-T Datasheet - Page 5

• Manufacturer Part Number: ISL6420IR-T
• Description: IC CTRLR PWM SYNC BUCK 20-QFN
• Manufacturer: Intersil

Specifications of ISL6420IR-T

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 1.4MHz
• Duty Cycle: 100%
• Voltage - Supply: 4.5 V ~ 16 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Frequency-max: 1.4MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical 12V Input DC/DC Application Schematic
C7
12V
C1
R3
R2
R4
PGOOD
C2
5
SS/EN
SGND
CDEL
CONFIGURATION FOR DDR TERMINATION/EXTERNALLY REFERENCED TRACKING APPLICATIONS
FB
RT
VIN
C10
C11
VMSET/MODE
REF
VCC5
PVCC
+
-
+
-
COMP
OSC
R5
MONITOR AND
PROTECTION
C3
+
-
-
+
VCC5
ISL6420
REFOUT
C4
OCSET
BOOT
UGATE
PHASE
LGATE
PGND
C12
GPIO1/REFIN <-- VREF = VDDQ/2
GPIO2
Q1
C5
R1
Q2
1.25V VREF
TO REFIN OF VTT SUPPLY
D1
C8
L1
C6
C9
February 13, 2008
2.5V/1.25V
VDDQ/VTT
FN9151.5