ISL6528CB Intersil, ISL6528CB Datasheet - Page 12

• Manufacturer Part Number: ISL6528CB
• Description: IC CTRLR STD PWM DUAL REG 8-SOIC
• Manufacturer: Intersil

Specifications of ISL6528CB

• Pwm Type: Voltage Mode
• Number Of Outputs: 2
• Frequency - Max: 650kHz
• 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: 650kHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ISL6528 Converter Application Circuit
Figure 9 shows a typical DC/DC converter circuit for a graphics card application. Additional information on this circuit
can be obtained by referencing application note AN9982.
VOUT2
(1A)
+3.3V
Q2
C14
1µF
L1
D1
Q2
Q1
FIGURE 9. POWER SUPPLY APPLICATION CIRCUIT FOR A GRAPHICS CONTROLLER
330µF
C6
470µF
C12
ETQ-P6F1R8BFA
FZT649
B520C-13
FDS6690A
11.3kΩ
12
R5
5.36kΩ
330µF
C7
R6
1µF
C5
+5V
Fairchild
Fairchild
Panasonic
Diode Inc.
FB2
GND
VCC
DRIVE2
ISL6528
ISL6528
BAT54
D2
UGATE
COMP
BOOT
FB
39.2kΩ
R2
150pF
C1
Q1
2.67kΩ
R4
D1
0.1µF
C4
0.018µF
1500pF
C1
C2
1.71µH
2.32kΩ
L1
R1
C8
1µF
30.9Ω
R2
2x470µF
C9,C10
VOUT1
(6A)
March 9, 2006
C11
1µF
FN9038.4