IRU3073 Datasheet, PDF (16/21 Pages) International Rectifier – SYNCHRONOUS PWM CONTROLLER WITH OVER-CURRENT PROTECTION / LDO CONTROLLER

IRU3073
DEMO-BOARD APPLICATION
2.5V
C13
150uF
1.6V
@ 2A
C15
1uF
Vcc
Q3
IRLR2703 ^Drv2
VcH
R2
1K
C14 _R14
150uF _1K
Fb2
U1 ^VcL
IRU3073
C10
0.1uF
R7
24K
C2
33pF
C7
2200pF
VP1
VREF
Comp
Rt
HDrv
OCSet
LDrv
C6
0.1uF
SS/SD
Gnd
Fb1
PGnd
C11
1uF
C16
1uF
C19
1uF
D2
BAT54
R4
5.1K
L1
1uH
C2C C2B C2A
47uF 47uF 47uF
Q1
IRF7832
12V
+5V
C1
47uF
L2
3.3uH
Q2
IRF7832
C9B C9C ^C12
330uF 330uF ^1uF
2.5V
@ 8A
R9
2.15K
R10
1K
Figure 17 - Typical application of IRU3073.
16
www.irf.com
Rev. 1.0
09/17/03