iru3038 International Rectifier Corp., iru3038 Datasheet - Page 13

• Manufacturer Part Number: iru3038
• Description: Synchronous Pwm Controller For Termination Power Supply Applications
• Manufacturer: International Rectifier Corp.

TYPICAL APPLICATION
Rev. 2.0
09/12/02
R5
R4
1K
1K
2200pF
2200pF
0.1uF
C14
33K
R6
C6
33K
C8
R2
0.1uF
0.1uF
C1
C9
0.15uF
C12
Figure 13 - Typical application of IRU3038 for DDR memory when the termination voltage
SS
V
V
SS
Rt
Comp
Comp
Gnd
R E F
P
IRU3037
IRU3038
Vcc
Vcc
5V
5V
Gnd
U1
U2
Vc
Vc
PGnd
HDrv
HDrv
LDrv
LDrv
tracks the core voltage generated by IRU3037.
Fb
Fb
12V
C10
1uF
12V
C2
1uF
D1
BAT54
or 1N4148
www.irf.com
Q1
1/2 of IRF7313
Q1
1/2 of IRF7313
Q2
1/2 of IRF7313
Q2
1/2 of IRF7313
R3
1K
1K
R1
D03316P-103, 10uH, 3.9A
D03316P-103, 10uH, 3.9A
C11
10TPB100M,
100uF, 55m
C3
10TPB100M,
100uF, 55m
L2
L3
V
V
1uH
L1
IRU3038
C4
47uF
C7
2x 6TPC150M,
150uF, 40m
C13
2x 6TPC150M
150uF, 40m
(1.25V @ 3A)
2.5V @ 3A
5V
V
Vtt
DDQ
V
V
13