ISL6520IBZ Intersil, ISL6520IBZ Datasheet - Page 9

• Manufacturer Part Number: ISL6520IBZ
• Description: IC CTRLR PWM SYNC BUCK 8-SOIC
• Manufacturer: Intersil

Specifications of ISL6520IBZ

• 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: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Frequency-max: 340kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ISL6520 DC/DC Converter Application Circuit
Figure 8 shows an application circuit of a DC/DC Converter.
Detailed information on the circuit, including a complete Bill-
Component Selection Notes:
C
C
D1 - 30mA Schottky Diode, MA732 or Equivalent
IN
OUT
- Each 330mF 6.3WVDC, Sanyo 6TPB330M or Equivalent.
- Each 330mF 6.3WVDC, Sanyo 6TPB330M or Equivalent.
+5V
6.19kΩ
8200pF
1.00kΩ
10.0kΩ
COMP/OCSET
9
470pF
FB
0.1μF
ISL6520
U
7
6
1
REF
FIGURE 8. 5V to 3.3V 15A DC/DC CONVERTER
OSC
+
-
PROTECTION
MONITOR
AND
5
VCC
3
+
-
GND
60.4Ω
ISL6520
3.16kΩ
2 x 330μF
C
18000pF
IN
1
2
4
8
of-Materials and circuit board description, can be found in
Application Note AN9932.
+
BOOT
UGATE
PHASE
L
Q
LGATE
1
1
- 3.1μH Inductor, Panasonic P/N ETQ-P6F2ROLFA or Equivalent.
, Q
2
- Intersil MOSFET; HUF76143.
Q
Q
1
2
0.1μF
D
1
L
1
2 x 1μF
3 x 330μF
C
OUT
+
0.1μF
V
OUT
April 3, 2007
FN9009.6