ISL6534CR Intersil, ISL6534CR Datasheet - Page 3

• Manufacturer Part Number: ISL6534CR
• Description: IC REG PWM DUAL TRPL 32-QFN
• Manufacturer: Intersil

Specifications of ISL6534CR

• Pwm Type: Voltage Mode
• Number Of Outputs: 2
• Frequency - Max: 1MHz
• Duty Cycle: 87.5%
• Voltage - Supply: 3.3 V ~ 12 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: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Frequency-max: 1MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SS1/EN1
SS2/EN2
SS3/EN3
PGOOD
Block Diagram
COMP1
COMP2
REFIN
FB1
FB2
0.6V
VCC5
VCC5
VCC5
3.3V
30µA
30µA
30µA
GND
3
with no COMP short
all 3 SS ramps done
3.3V
AND CONTROL
PGOOD =
MONITOR
COMP PINS
FOR SHORTS
POWER
RESET
ON
VCC
FIGURE 1. BLOCK DIAGRAM
IF SHORT > FILTER,
SHUT DOWN ALL
3 OUTPUTS
1-2 CLOCK
ISL6534
CYCLE
FILTER
BIAS CURRENT
0.6V
VCC5
REFERENCE
5.8V
GENERATOR
CLOCK AND
SAWTOOTH
VREF
3.3V
3.3V
PGND
GATE CONTROL
GATE CONTROL
DEAD-TIME
DEAD-TIME
OUTPUT1
CONTROL
DRIVERS
OUTPUT2
DRIVERS
CONTROL
VCC12
LOGIC
LOGIC
0.6V
November 18, 2005
FN9134.2
BOOT1
UGATE1
LGATE1
BOOT2
UGATE2
LGATE2
FS/SYNC
REFOUT
FB3
DRIVE3