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Refer to the following application notes for detailed guidelines and suggestions when
implementing iPOWIR Technology products:
AN-1028: Recommended Design, Integration and Rework Guidelines for International Rectifiers
iPOWIR Technology BGA Packages
This paper discusses the assembly considerations that need to be taken when mounting iPOWIR BGAs
on printed circuit boards. This includes soldering, pick and place, reflow, inspection, cleaning and
reworking recommendations.
AN-1029: Optimizing a PCB Layout for an iPOWIR Technology Design
This paper describes how to optimize the PCB layout design for both thermal and electrical performance.
This includes placement, routing, and via interconnect suggestions.
AN-1030: Applying iPOWIR Products in Your Thermal Environment
This paper explains how to use the Power Loss and SOA curves in the data sheet to validate if the
operating conditions and thermal environment are within the Safe Operating Area of the iPOWIR product.
AN-1047: Graphical solution for two branch heatsinking Safe Operating Area
Detailed explanation of the dual axis SOA graph and how it is derived.
4-Phase Reference Design Bill of Materials
Quantity Designator Value 1 Value 2 Type 2 Tolerance Package Mfr. Mfr. Part No.
1 C1 6800pF 50V X7R 10% 0805 PHICOMP 08052R682K9BB0
17
C10 C11 C12 C13 C14 C3
C30 C31 C32 C33 C4 C46
C5 C6 C7 C8 C9
10.0uF 16V X5R 10% 1206 Murata GRM31CR61C106KC31B
8
C15 C16 C17 C18 C19 C20
C21 C22
100uF 6.3V X5R 20% 1210 TDK C3225X5R0J107M
2 C2 C29 10.0uF 6.3V X5R 10% 1206 TDK C3216X5R0J106K
1 C25 8.20pF 50V NPO 3% 0805 PHICOMP 0805CG829C9BB0
1 C26 1800pF 50V X7R 10% 0805 PHICOMP 08052R182K9BB0
1 C27 1.00uF 16V X7R 10% 0805 MuRata GRM40X7R105K016
1 C28 0.010uF 50V X7R 10% 0805 TDK C2012X7R1H103KT
1 C34 0.100uF 50V X7R 10% 0805 ROHM MCH215C104KP
4 C35 C36 C37 C38 0.22uF 6.3V X5R 10% 0603 TDK C1608X5R0J224K
3 C39 C40 C41 330uF 16V WA series 20% SMD Panasonic EEF-WA1C331P
5 C42 C43 C44 C45 C47 Open - - - - - -
3 R1 R2 R31 3.92K 1/8W thin film 0.10% 0805 BC Component 2312-241-73922
5 R10 R11 R12 R13 R35 0 1/8W thick film <50m 0805 ROHM MCR10EZHJ000
9
R16 R17 R18 R19 R21 R23
R25 R27 R34
10.0K 1/8W thick film 1% 0805 KOA RK73H2A1002F
2 R3 R32 4.42K 1/8W thin film 0.10% 0805 BC Component 2312-241-74422
1 R33 30.1K 1/8W thick film 1% 0805 KOA RK73H2A3012F
1 R4 20.0K 1/8W thick film 1% 0805 KOA RK73H2A2002F
4 R5 R7 R8 R9 2.49K 1/8W thick film 1% 0805 KOA RK73H2A2491F
1 R6 200 1/8W thick film 1% 0805 KOA RK73H2A2000F
7
R22 R24 R26 R28 R29
R30 R36
Open - - - - - -
2 D1 D2 30V 200mA schottky - sot23 Central CMPD3003A
1 D5 40V 2.1A schottky - D-64 IRF 10MQ040N
1 D6 30V 100mA schottky - sot23 Central CMPSH-3
4 L1 L2 L3 L4 0.3uH 36A ferrite 20% SMT Panasonic ETQP2H0R3BFA
1 L5 15uH 0.70A ferrite 20% SMT Coilcraft 1008PS-153M
1 U1 4.5 - 5.5V 0.8 - 5V PWM controller 0 - 70°C 16 Ld SOIC Intersil ISL6558CB
4 U2 U3 U4 U5 30A - Power Block - 11mm x 11mm International Rect iP2002
1 U6 4.7 - 25V 1.8 - 5V PWM controller -40 to +85°C S6 Linear Technology LT1616
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