10PCB1-8 L = 1.8 H Coilcraft P3270-A T Q Q 9.2 V Shutdown Current Limit 9 50 mVp-p 71.2% V in = 48 V, IO = 15 A V in = 48 V, IO = 15 A Output Ripple Efficiency 54 mV = 1.0% V in = 48 V, IO = 8.0 V to 15 A Result 22 1500 pF Load Regulation 1N5819 L1 10 F 1 MBR2535CTL 1.8 H 14 mV = 0.275% Condition 220 pF 100 0.3 2 IRF640 50 1600 pF T1 22 1500 pF 100 1N5819 36 V to 56 V V in = 40 V to 56 V, I O = 15 A 47 100 1N5819 4.7 1N5819 4.7 10 10 4.7 V in Line Regulation Test 1.4 V 1.0 V 12 11 14 13 15 1 - 10 (1.0 F) ceramic capacitors in parallel 2 - 5 (1.5 ) resistors in parallel 3 - 2 (1.0 F) cearmic capacitors in parallel Insulators - All power devices are insulated with Berquist Sil-Pad 1500 T1 - Primary: 16 turns center tapped #48 AWG (1300 strands litz wire) Secondary: 4 turns center tapped 0.003" (2 layers) copper foil Bootstrap: 1 turn added to each secondary output #36 AWG Core: Philips 3F3, part #4312 020 4124 Bobbin: Philips part #4322 021 3525 Coilcraft P3269-A 0.015 F 3 7 6 5 4 Reference Regulat

5231B C9 0.1 F C7 0.47 F R12 27K D4 1N5240 R9 2K 3W R6 1K R10 10 D2 1N5245 R11 680 Q2 2N2907A R13 1.1K 2 4 R7 15K C15 0.015 F D3 SF24 R8 0.15 3W Q3 IRF640 5:1 R19 5.1K 3W C10 0.22 F T1 80 H U3 1 5 H11AV1 1 2 3 R15 10K C14 470pF C16 330 F 6.3V C13 0.1 F U2 MBR2535CTL U4 TL431 R14 750 C17 330 F 6.3V R16 12.1K 1% R17 12.1K 1% C18 330 F 6.3V -VOUT C19 330 F 6.3V +VOUT UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION UDG-99179 Figure 1. Isolated 50W flyback converter utilizing the UCC3809. The switching frequency is 70kHz, Vin = -32V to -72V, Vout = +5V, Iout = 0A to 10A 4 UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION (cont.) The Typical Application Diagram shows an isolated flyback converter utilizing the UCC3809. Note that the capacitors CREF and CVDD are local decoupling capacitors for the reference and IC input voltage, respectively. Both capacitors should be low ESR and ESL ceramic, placed as close to the IC pins as possible, and returned directly to the ground pin

5231B C9 0.1 F C7 0.47 F R12 27K D4 1N5240 R9 2K 3W R6 1K R10 10 D2 1N5245 R11 680 Q2 2N2907A R13 1.1K 2 4 R7 15K C15 0.015 F D3 SF24 R8 0.15 3W Q3 IRF640 5:1 R19 5.1K 3W C10 0.22 F T1 80 H U3 1 5 H11AV1 1 2 3 R15 10K C14 470pF C16 330 F 6.3V C13 0.1 F U2 MBR2535CTL U4 TL431 R14 750 C17 330 F 6.3V R16 12.1K 1% R17 12.1K 1% C18 330 F 6.3V -VOUT C19 330 F 6.3V +VOUT UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION UDG-99179 Figure 1. Isolated 50W flyback converter utilizing the UCC3809. The switching frequency is 70kHz, Vin = -32V to -72V, Vout = +5V, Iout = 0A to 10A 4 UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION (cont.) The Typical Application Diagram shows an isolated flyback converter utilizing the UCC3809. Note that the capacitors CREF and CVDD are local decoupling capacitors for the reference and IC input voltage, respectively. Both capacitors should be low ESR and ESL ceramic, placed as close to the IC pins as possible, and returned directly to the ground pin

5231B C9 0.1 F C7 0.47 F R12 27K D4 1N5240 R9 2K 3W R6 1K R10 10 D2 1N5245 R11 680 Q2 2N2907A R13 1.1K 2 4 R7 15K C15 0.015 F D3 SF24 R8 0.15 3W Q3 IRF640 5:1 R19 5.1K 3W C10 0.22 F T1 80 H U3 1 5 H11AV1 1 2 3 R15 10K C14 470pF C16 330 F 6.3V C13 0.1 F U2 MBR2535CTL U4 TL431 R14 750 C17 330 F 6.3V R16 12.1K 1% R17 12.1K 1% C18 330 F 6.3V -VOUT C19 330 F 6.3V +VOUT UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION UDG-99179 Figure 1. Isolated 50W flyback converter utilizing the UCC3809. The switching frequency is 70kHz, Vin = -32V to -72V, Vout = +5V, Iout = 0A to 10A 4 UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION (cont.) The Typical Application Diagram shows an isolated flyback converter utilizing the UCC3809. Note that the capacitors CREF and CVDD are local decoupling capacitors for the reference and IC input voltage, respectively. Both capacitors should be low ESR and ESL ceramic, placed as close to the IC pins as possible, and returned directly to the ground pin

4 Q2 HUF76139S2S GATE3 FB3 16 VOUT4 14 FB4 R11 FAULT 1K 13 GND 17 2.9H VOUT1 1.3 to 3.5V + R4 4.99K C10-16 7x1000F C17 R7 0.68F 732K VID0 7 6 VID1 VID2 5 4 VID3 3 VID4 SS R13 4.99K L3 22 FB1 21 18 R8 LGATE1 PGND 5.11K Q4 HUF75307D3S 1000pF R2 PHASE1 26 D1 MBR2535CTL R5 C8 12 C25 0.039F DS9229-03 July 2001 RT9229 Package Information H M B B J A C F Symbol DS9229-03 July 2001 D I Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 17.704 18.110 0.697 0.713 B 7.391 7.595 0.291 0.299 C 2.362 2.642 0.093 0.104 D 0.330 0.508 0.013 0.020 F 1.194 1.346 0.047 0.053 H 0.229 0.330 0.009 0.013 I 0.102 0.305 0.004 0.012 J 10.008 10.643 0.394 0.419 M 0.381 1.270 0.015 0.050 www.richtek-ic.com.tw 9 RT9229 RICHTEK TECHNOLOGY CORP. RICHTEK TECHNOLOGY CORP. Headquarter Taipei Office (Marketing) 6F, No. 35, Hsintai Road, Chupei City 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Hsinchu, Taiwan, R.O.C. Taipei County, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 Tel: (8862)89191466 Fax: (

C unless noted. TO-220 Type Schottky Rectifiers 13 2 Mfr.Os Type VRRM (V) IO (A) IO Rating Condition Max.VF @ IF TC=25C (V) IFSM (A) TJ Max. (C) Max IR2 TJ=25C (mA) Max IR3 TL (mA) Package Style MBR1545CT MBR2045CT MBR2060CT MBR20100CT MBR20200CT MBR2515L MBR2535CTL MBR2545CT MBR745 MBR1045 MBR1060 MBR10100 MBR1645 45 45 60 100 200 15 35 45 45 45 60 100 45 15.0 20.0 20.0 20.0 20.0 25.0 25.0 25.0 7.5 10.0 10.0 10.0 16.0 TC=105C TC=135C TC=133C TC=133C TC=125C TC=90C TC=95C TC=130C TC=105C TC=135C TC=133C TC=133C TC=125C 0.84 @ 15 A 0.84 @ 20 A 0.85 @ 10 A, 0.95 @ 20 A 0.85 @ 10 A, 0.95 @ 20 A 1.00 @ 20 A 0.45 @ 25 A 0.55 @ 25 A 0.82 @ 30 A 0.84 @ 15 A 0.84 @ 20 A 0.80 @ 10 A 0.80 @ 10 A 0.63 @ 16 A 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 100 125 150 150 150 150 150 150 0.1 0.1 0.1 1.1 1.0 15.0 5.0 0.2 0.1 0.1 0.1 0.1 0.2 15@ 125C 15 @ 125C 6 @ 125C 6 @ 125C 50 @ 125C 200 @ 70C 500 @ 125C 40 @ 125C 15 @ 125C 15 @ 125C 6 @ 125C 6 @ 125C 40 @ 125C Case 221A-06 Case 221

9 C0 9x 1000F 11 COMP 2.2nF D2 +VO GND 20K 8.2nF 0.082F 1K 20 Component Selection Notes C0 - C 9 Each 1000F 6.3WVDC, Sanyo MV-GX or Equivalent D1 - 1N4148 or Equivalent C1 - C 5 Each 330F 25WVDC, Sanyo MV-GX or Equivalent D2 - 25A, 35V Schottky, Motorola MBR2535CTL or Equivalent L2 - Core: Micrometals T60-52; Each Winding: 14 Turns of 17AWG Q1 - Intersil MOSFET; RFP70N03 L1 - Core: Micrometals T50-52; Winding: 6 Turns of 18AWG FIGURE 11. PENTIUM PRO DC-DC CONVERTER 2-109

x1F C16 1F C18 C17 VCC 1000pF R1 28 1.21K OCSET2 1000pF R2 23 1.21K OCSET1 9 8 Q3 HUF76137S3S VOUT2 (3.3V) UGATE2 L2 PHASE2 1 27 2 26 POWERGOOD PGOOD Q1 HUF76139S3S UGATE1 PHASE1 5.2H + 2.9H C19-23 5x1000F R3 4.99K R5 FB2 3.32K 0.68F R21 C38 LGATE1 25 CR2 MBR2535CTL VSEN2 C37 15 22 10 21 HIP6019B COMP2 C24-36 + 7x1000F Q2 HUF76139S3S PGND 24 R4 4.99K VSEN1 C40 R8 FB1 2.21K 0.68F 11 10pF COMP1 20 R7 R6 Q4 HUF75307D3S VOUT3 (GTL = 1.5V) C39 220K 5.11K R11 VOUT4 (2.5V) FB3 7 18 6 5 19 3 VOUT4 10K + 4 R12 10K R13 C47 270F C42 R10 0.01F 150K R9 0.1F GATE3 C43-46 4x1000F C41 10pF 1.87K + VOUT1 (1.3 TO 3.5V) L3 FB4 R14 10K 16 12 VID0 VID1 VID2 VID3 VID4 VID1 VID2 VID3 VID4 SS 14 17 13 732K VID0 C48 0.039F GND FAULT/RT FIGURE 15. APPLICATION CIRCUIT All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corpor

erquist Sil-Pad 1500 1 - 10 (1.0 F) ceramic capacitors in parallel 2 - 5 (1.5 ) resistors in parallel 3 - 2 (1.0 F) cearmic capacitors in parallel MC34025, MC33025 15 http://onsemi.com 47 k T L1 10 F 1 900 nH Figure 37. Application Circuit 1 4.7 14 1.25 V MBR2535CTL 1.8 H T1 10 6 0.01 22 1500 pF 13 9.2 V Oscillator 22 k 4.7 10 4.0 V 1000 pF 100 1N5819 15 Reference Regulator 36 V to 56 V MC34025, MC33025 4.7 H MBR 2535CTI 1N5819 1N5819 1500 pF 1 + 4.0 100 pF 100 pF 1N5819 + 10 1000 pF 0.01 1N5819 0.01 MBR 2535CTI 2200 pF 1500 pF 1 1 6.5 (Top View) Figure 38. PC Board With Components http://onsemi.com 16 MC34025, MC33025 (Top View) 4.0 6.5 (Bottom View) Figure 39. PC Board Without Components http://onsemi.com 17 MC34025, MC33025 PACKAGE DIMENSIONS PDIP-16 P SUFFIX CASE 648-08 ISSUE R NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIO

= 1.6 A Triangular = 2.0 mVpp, Spike = 12 mVpp Vin = 115 Vac, IO = 1.6 A 78.6%* Vin = 230 Vac, IO = 1.6 A 75.6% Output Ripple Efficiency y This data was taken with the components listed below mounted on the printed circuit board shown in Figure 22. * With MBR2535CTL, 79.8% efficiency. PCB layout modification is required to use this rectifier. For high efficiency and small circuit board size, the Sanyo Os-Con capacitors are recommended for C8, C9, C10 and C11. C8, C9, C10 = Sanyo Os-Con #6SA330M, 330 F 6.3 V. C11 = Sanyo Os-Con #10SA220M, 220 F 10 V. L1 = Coilcraft S5088-A, 5.0 H, 0.11 . T1 = Coilcraft S5502-A Primary: 77 turns of # 28 AWG, Pin 1 = start, Pin 8 = finish. Two layers 0.002 Mylar tape. Secondary: 5 turns of # 22 AWG, 2 strands bifiliar wound, Pin 5 = start, Pin 4 = finish. Two layers 0.002 Mylar tape. Auxiliary: 13 turns of # 28 AWG wound in center of bobbin, Pin 2 = start, Pin 7 = finish. Two layers 0.002 Mylar tape. Gap: 0.006 total for a primary inductance (LP) of 1.0 mH. Core and

MV-GX or Equivalent. CIN - Each 330F 25WVDC, Sanyo MV-GX or Equivalent. L2 - Core: Micrometals T60-52; Each Winding: 14 Turns of 17AWG. L1 - Core: Micrometals T50-52; Winding: 6 Turns of 18AWG. D 1 - 1N4148 or Equivalent. D 2 - 25A, 35V Schottky, Motorola MBR2535CTL or Equivalent. Q1 - Intersil MOSFET; RFP70N03. FIGURE 11. PENTIUM PRO DC-DC CONVERTER All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringemen

= 3.0 A Triangular = 2.0 mVpp, Spike = 34 mVpp Vin = 115 Vac, IO = 3.0 A 76.8%* Vin = 230 Vac, IO = 3.0 A 76.8% Output Ripple Efficiency y This data was taken with the components listed below mounted on the printed circuit board shown in Figure 23. * With MBR2535CTL, 78.8% efficiency. PCB layout modification is required to use this rectifier. For high efficiency and small circuit board size, the Sanyo Os-Con capacitors are recommended for C8, C9, C10 and C11. C8, C9, C10 = Sanyo Os-Con #6SA330M, 330 F 6.3 V. C11 = Sanyo Os-Con #10SA220M, 220 F 10 V. L1 = Coilcraft S5088-A, 5.0 H, 0.11 . T1 = Coilcraft U6875-A Primary: 77 turns of # 28 AWG, Pin 1 = start, Pin 8 = finish. Two layers 0.002 Mylar tape. Secondary: 5 turns of # 22 AWG, 2 strands bifiliar wound, Pin 5 = start, Pin 4 = finish. Two layers 0.002 Mylar tape. Auxiliary: 13 turns of # 28 AWG wound in center of bobbin, Pin 2 = start, Pin 7 = finish. Two layers 0.002 Mylar tape. Gap: 0.011 total for a primary inductance (LP) of 620 H. Core and

1F D1 5231B C9 0.1F C7 0.47F R12 27K D4 1N5240 R9 2K 3W R6 1K R10 10 D2 1N5245 R11 680 Q2 2N2907A R13 1.1K 2 4 R7 15K C15 0.015F D3 SF24 R8 0.15 3W Q3 IRF640 5:1 R19 5.1K 3W C10 0.22F T1 80H U3 1 5 H11AV1 1 2 3 R15 10K C14 470pF C16 330F 6.3V C13 0.1F U2 MBR2535CTL U4 TL431 R14 750 C17 330F 6.3V R16 12.1K 1% R17 12.1K 1% C18 330F 6.3V -VOUT C19 330F 6.3V +VOUT UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION UDG-99179 Figure 1. Isolated 50W flyback converter utilizing the UCC3809. The switching frequency is 70kHz, Vin = -32V to -72V, Vout = +5V, Iout = 0A to 10A 4 UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 APPLICATION INFORMATION (cont.) The Typical Application Diagram shows an isolated flyback converter utilizing the UCC3809. Note that the capacitors CREF and CVDD are local decoupling capacitors for the reference and IC input voltage, respectively. Both capacitors should be low ESR and ESL ceramic, placed as close to the IC pins as possible, and returned directly to the ground pin of

MBR2535CTL SWITCHMODE Power Rectifier . . . employing the Schottky Barrier principle in a large metal-to-silicon power diode. State-of-the-art geometry features epitaxial construction with oxide passivation and metal overlay contact. Ideally suited for use in low voltage, high frequency switching power supplies, free wheeling diodes, and polarity protection diodes. * Very Low Forward Voltage (0.55 V Maximum @ 25 Amps) * Matched Dual Die Construction (12.5 A per Leg or 25 A per Package) * Guardring for Stress Protection * Highly Stable Oxide Passivated Junction http://onsemi.com SCHOTTKY BARRIER RECTIFIER 25 AMPERES 35 VOLTS (125C Operating Junction Temperature) 1 * Epoxy Meets UL94, VO at 1/8 2, 4 3 Mechanical Characteristics * Case: Epoxy, Molded * Weight: 1.9 grams (approximately) * Finish: All External Surfaces Corrosion Resistant and Terminal * * * 4 Leads are Readily Solderable Lead Temperature for Soldering Purposes: 260C Max. for 10 Seconds Shipped 50 units per plastic tube Marking: B2535L

Vin = 115 Vac, IO = 3.0 A 76.8%* Vin = 230 Vac, IO = 3.0 A 76.8% Output Ripple Efficiency C12 1.0 R10 2.74 k 5 LEB 270 A 220 - R PWM 1 C11 This data was taken with the components listed below mounted on the printed circuit board shown in Figure 23. *With MBR2535CTL, 78.8% efficiency. PCB layout modification is required to use this rectifier. For high efficiency and small circuit board size, the Sanyo Os-Con capacitors are recommended for C8, C9, C10 and C11. C8, C9, C10 = Sanyo Os-Con #6SA330M, 330 mF 6.3 V. C11 = Sanyo Os-Con #10SA220M, 220 mF 10 V. L1 = Coilcraft S5088-A, 5.0 mH, 0.11 W. T1 = Coilcraft U6875-A Primary: 77 turns of # 28 AWG, Pin 1 = start, Pin 8 = finish. Two layers 0.002 Mylar tape. Secondary: 5 turns of # 22 AWG, 2 strands bifiliar wound, Pin 5 = start, Pin 4 = finish. Two layers 0.002 Mylar tape. Auxiliary: 13 turns of # 28 AWG wound in center of bobbin, Pin 2 = start, Pin 7 = finish. Two layers 0.002 Mylar tape. Gap: 0.011 total for a primary inductance (LP) of 620 mH. Core