IRU3021M
7
Rev. 1.5
07/17/02
www.irf.com
Figure 3 - Typical application of IRU3021M in a dual layout with HIP6021 for an on-board
DC-DC converter providing power for the Vcore, GTL+, 1.8V chip set supply as well as
auto select AGP supply for the next generation PC applications.
TYPICAL APPLICATION
(Dual Layout with HIP6021)
Part# R3 R5 R9 R12 C15 C16 C17
HIP6021 O S O V O V V
IRU3021M S O S O V O O
S - Short O - Open V - See IR or Harris parts list for the value
Table 2 - Dual layout component table.
12V
3.3V
IN
V
OUT
3
1.5V
V
OUT
4
1.8V
PGood
Vcore
C2
L1
R11
C17
R12
C16
R8
C14
Q3
C22
R14
R6
C7
L2
R7
R4
Q1
C3C4R2C5
Q5
C15
C19
C20
R10
R1
5V
C1
U1
R9
Q4
C18
Q2
C13
V
OUT
2
1.5V / 3.3V
R5
R3
Type Detect
R13
C21
Vcc3
Drive3
V
SEN
4
Gnd
V
SEN
3
Select
SD
VID3
VID2
Fault / Rt
VID1
VID0
PGnd
V12
Drive4
LGate
Phase
UGate
OCSet
SS
Fb
V
SEN
1
PGood
V5
(COMP)
NC
(Vaux)
Drive2
V
SEN
2
VID4
Fix
IRU3021M
C6
8
Rev. 1.5
07/17/02
IRU3021M
www.irf.com
Ref Desig Description Qty Part # Manuf
Q1 MOSFET 1 IRL3103S, TO-263 package IR
Q2 MOSFET 1 IRLR3103, TO-252 package IR
Q3 MOSFET with Schottky 1 IRL3103D1S, TO-263 package IR
Q4,5 MOSFET 2 IRLR024, TO-252 package IR
L1 Inductor 1 L=1mH, 5052 core with 4 turns of Micro Metal
1.0mm wire
L2 Inductor 1 L=2.7mH, 5052B core with 7 turns of Micro Metal
1.2mm wire
C1 Capacitor, Electrolytic 1 10MV470GX, 470mF, 10V Sanyo
C2,3 Capacitor, Electrolytic 2 10MV1200GX, 1200mF, 10V Sanyo
C4 Capacitor, Ceramic 1 220pF, 0603
C5 Capacitor, Ceramic 1 1mF, 0805
C6,18 Capacitor, Electrolytic 2 6MV1000GX, 1000mF, 6.3V Sanyo
C7 Capacitor, Electrolytic 6 6MV1500GX, 1500mF, 6.3V Sanyo
C13,19 Capacitor, Electrolytic 1 6MV1500GX, 1500mF, 6.3V Sanyo
C14,15 Capacitor, Ceramic 2 1mF, 0603
C16,17 Capacitor, Ceramic 2 See Table 2, dual layout component
0603 3 2
C20,21 Capacitor, Ceramic 2 0.1mF, 0603
C22 Capacitor, Ceramic 1 1000pF, 0603
R1 Resistor 1 10V, 5%, 0603
R2 Resistor 1 3.3KV, 5%, 0603
R3,5,12 Resistor 3 See Table 2, dual layout component
0603 3 3
R4,7,14 Resistor 3 4.7V, 5%, 1206
R6,8,10 Resistor 3 2.2KV, 1%, 0603
R9 Resistor 1 0V, 0603
R11 Resistor 1 220KV, 1%, 0603
R13 Resistor 1 10KV, 5%, 0603
IRU3021M APPLICATION PARTS LIST
Dual Layout with HIP6021
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information
Data and specifications subject to change without notice. 02/01
IRU3021M
9
Rev. 1.5
07/17/02
www.irf.com
(W) SOIC Package
28-Pin Surface Mount, Wide Body
NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS.
MIN
17.73
0.36
7.40
2.44
0.10
0.23
10.11
08
0.51
0.63
2.44
MAX
17.93
0.46
7.60
2.64
0.30
0.32
10.51
88
1.01
0.89
2.64
1.27 BSC
0.66 REF
28-PINSYMBOL
A
B
C
D
E
F
G
I
J
K
L
R
T
I
K
DETAIL-A
DETAIL-A
R
PIN NO. 1
0.51
6
0.020 x 45
8
T
A
B
D
L
J
C
F
G
H
E

IRU3021MCW

Mfr. #:
Manufacturer:
Infineon Technologies
Description:
IC REG CTRLR INTEL 4OUT 28SOIC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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