ISL6529CB-T Intersil, ISL6529CB-T Datasheet - Page 17
ISL6529CB-T
Manufacturer Part Number
ISL6529CB-T
Description
IC CTRLR PWM DUAL REG 14-SOIC
Manufacturer
Intersil
Type
Step-Down (Buck)r
Datasheet
1.ISL6529CBZ.pdf
(19 pages)
Specifications of ISL6529CB-T
Internal Switch(s)
No
Synchronous Rectifier
Yes
Number Of Outputs
2
Voltage - Output
0.5 ~ 4.5 V
Frequency - Switching
600kHz
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output
-
Voltage - Input
-
Power - Output
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ISL6529CB-T
Manufacturer:
MOT
Quantity:
26
Part Number:
ISL6529CB-T
Manufacturer:
INTERSIL
Quantity:
20 000
However, if logic-level transistors or transistors with low
V
be exercised, as the low gate threshold could lead to some
shoot-through despite counteracting circuitry present aboard
the ISL6529.
N-Channel MOSFET Transistor Selection
The main criteria for selection of the linear regulator pass
transistor is package selection for efficient removal of heat.
Select a package and heatsink that maintains the junction
temperature below the rating with a maximum expected
ambient temperature.
ISL6529 Converter Application Circuit
GS(on)
VOUT2
(1A)
2.5V
are used, close attention to layout guidelines should
+3.3V
Q1, Q2
Q3
L1
L2
Q3
C14
1µF
FIGURE 17. POWER SUPPLY APPLICATION CIRCUIT FOR A GRAPHICS CONTROLLER
IRF7313
919AS-4R7M
MTD3055V
919AS-1R0N
1000µF
C7
C12
1500µF
17
4.64kΩ
1.0kΩ
R13
R5
2.15kΩ
C4
470pF
R12
6.8kΩ
R6
IR
Fairchild
TOKO
TOKO
1µF
+5V
C5
DRIVE2
FB2
ISL6529, ISL6529A
GND
5VCC
1µH
ISL6529A
ISL6529
L2
12VCC
The power dissipated in the linear regulator is:
where I
nominal output voltage of the linear regulator.
References
Intersil documents are available on the web at
http://www.intersil.com.
P
[1] Technical Brief, Intersil Corporation, TB417,
PGND
LINEAR
UGATE
LGATE
COMP
+12V
C15
1µF
http://www.intersil.com/data/tb/tb417.pdf
FB
O
≅
is the maximum output current and V
I
O
×
(
V
1.0kΩ
R4
C6
470µF
IN
–
10.7kΩ
R2
V
47nF
C1
OUT
)
Q1
Q2
1.2nF
C2
10Ω
R3
4.7µH
C8
4.7µF
1.0kΩ
L1
R1
470µF
C9
47nF
C3
OUT
C10
1µF
April 12, 2005
(EQ. 18)
is the
VOUT1
FN9070.5
(6A)
1.6V