ISL6431CB Intersil, ISL6431CB Datasheet - Page 2

• Manufacturer Part Number: ISL6431CB
• Description: IC CNTRLR PWM SYNC BUCK 8-SOIC
• Manufacturer: Intersil

Specifications of ISL6431CB

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 340kHz
• Duty Cycle: 100%
• Voltage - Supply: 4.5 V ~ 5.5 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 8-SOIC (3.9mm Width)
• Frequency-max: 340kHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Block Diagram
Typical Application
COMP/OCSET
FB
R
C
R
R
1
1
2
3
0.8V
COMP/OCSET
20 A
C
+
-
2
2
C
3
SAMPLE
HOLD
AND
FB
7
6
ISL6431
3
5
ERROR
VCC
GND
AMP
V
CC
1
2
8
4
+
-
UGATE
PHASE
C
BOOT
LGATE
COMPARATOR
4
+
-
ISL6431
FIXED 300kHz
OC
OSCILLATOR
COMPARATOR
R
PWM
4
+
-
D
C
BOOT
6
L
OUT
SOFTSTART
POR AND
C
7
VCC
PWM
C
5
INHIBIT
GND
CONTROL
LOGIC
GATE
+V
O
VCC
= 0.8 to V
IN
BOOT
UGATE
PHASE
LGATE