iru3047 International Rectifier Corp., iru3047 Datasheet - Page 13

• Manufacturer Part Number: iru3047
• Description: Dual Synchronous Controller With Current Sharing Circuitry Controller
• Manufacturer: International Rectifier Corp.

TYPICAL APPLICATION
Dual Input: 5V and 12V to 1.5V @ 16A
Rev. 1.0
09/09/02
PGood
@ 2A
3.3V
2.5V
12V
5V
C30
1uF
3.3V to 2.5V @ 2A
C18
47uF
C13
47uF
1uF
29.4K
16.5K
C8
R16
R21
Q3
0.1uF
IRLR2703
C29
R10
1K
R6 10
2200pF
C34
C24
6.8nF
R7 1K
V
Figure 9 - Typical application of IRU3047, configured as
Vcc
V
Comp1
Fb3
Comp2
PGood
SS
OUT3
V
CL
IRU3047
a 2-phase converter in current sharing mode.
U1
Gnd
VcH1
HDrv2
HDrv1
LDrv1
LDrv2
VcH2
PGnd
V
Vp2
Fb1
Fb2
REF
D1
BAT54S
www.irf.com
C9
1uF
C3
0.1uF
1uH
L2
Q1
IRF7460
C4
47uF
Q2
IRF7457
Q4
IRF7460
Q5
IRF7457
C32
47uF
C2
33uF
R19
4.7
R5
4.7
L3 2.2uH
L4 3.3uH
C26
470pF
C14
470pF
C23
1uF
V
V
1uH
L1
5m
5m
R17
R3
V
V
C5
330uF
C31
330uF
C6
1uF
C1
33uF
R8
200
R12
1K
C10,C11,C12
3x 150uF
C19,C20,C21
3x 150uF
IRU3047
C15
1uF
1.5V
@ 16A
13