ir3621 International Rectifier Corp., ir3621 Datasheet - Page 18

• Manufacturer Part Number: ir3621
• Description: 2-phase / Dual Synchronous Pwm Controller With Oscillator Synchronization And Pre-bias Startup
• Manufacturer: International Rectifier Corp.

IR3621 & (PbF)
TYPICAL APPLICATION
18
12V
PGood
C1
C10
12V input and two independent outputs using type 2 compensation.
C3
C8
C9
R2
C15
C5
C4
R3
R4
Figure 19 - Typical application of IR3621.
V
Vcc
V
V
Rt
Comp1
Hiccup
Comp2
PGood
SS2 / SD
SS1 / SD
CL
P2
REF
C12
VcH2
IR3621
VcH2
U1
V
OUT3
www.irf.com
OCSet1
OCSet2
PGnd2
PGnd1
HDrv2
HDrv1
LDrv2
LDrv1
V
V
VcH1
Sync
SEN2
Gnd
SEN1
Fb1
Fb2
V
V
SEN2
SEN1
R1
R6
C13
VcH2
Q2
Q3
Q4
Q5
C17
D2
V
C14
SEN2
C20
D1
V
SEN1
R23
R22
L4
L3
C11
R20
R21
C18
R9
R5
R7
R8
C16
2.5V @ 10A
1.8V @ 10A