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IRU3046CF Datasheet(PDF) 13 Page - International Rectifier

Part # IRU3046CF
Description  DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
PDF  20 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IRU3046CF Datasheet(HTML) 13 Page - International Rectifier

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IRU3046
13
Rev. 1.9
09/27/02
www.irf.com
Figure 10 - Typical application for IRU3046 configured as two independent controllers.
TYPICAL APPLICATION
Figure 11 - Switching frequency per phase vs. Rt
Switching Frequency vs. Rt
190
220
250
280
310
340
370
400
0
100
200
300
400
500
600
Rt
12V
5V
2.5V
@ 2A
PGood
C1
33uF
L1
C6
47uF
R2
1K
L4
Q1
C5
1uF
C7
47uF
3.3V
U1
1.8V
@ 8A
R8
1K
C16
2x 150uF
L3
C17
2x 150uF
R7
442
V
C10
0.1uF
R1
R4
C9
1500pF
R3
C8
2200pF
C3
1uF
C4
1uF
C13
D1
D2
PGnd
VCL
VOUT3
LDrv1
HDrv1
Fb1
Vp2
LDrv2
HDrv2
VcH1
VcH2
Vcc
Gnd
Comp2
Fb3
Comp1
SS
PGood
VREF
IRU3046
C14
2x 47uF
Sync
Rt
VSEN33
VccLDO
1uH
C11
0.1uF
4.7uH
3.9uH
2.5V
@ 8A
R9
1K
C12
2x 150uF
R5
1K
Fb2
1K
25K
22K
IRLR2703
Q2
IRF7460
Q3
IRF7457
1uF
Q5
IRF7457
Q4
IRF7457
L2
1uH
C2
33uF



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