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59PR9875N Datasheet(PDF) 31 Page - International Rectifier |
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59PR9875N Datasheet(HTML) 31 Page - International Rectifier |
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31 / 49 page  IR3448 31 www.irf.com © 2013 International Rectifier August 01, 2013 TYPICAL APPLICATION INTERNALLY BIASED SINGLE SUPPLY IR3448 Boot SW FB VSNS Vcc PGood Vin PGND AGND CByp Rt/Sync Comp RS+ RS- RSo Cpvin2 Cboot Lo Cout Cbyp Cvcc Rpg Rt Cvin 39.2 K 10 K 10uF 100pF Vin 0.1uF 6 x 47uF 0.4uH 5 x 22uF Cpvin3 0.1uF 1uF Ren1 7.5 K Ren2 49.9 K Cc3 220pF Cc2 10nF Cc1 2200pF Rbode 20 Rfb2 5.76 K Rfb1 5.76 K Rsns2 5.76 K Rsns1 5.76 K Rc2 2 K Rc1 88.7 Vo PGood Cpvin1 330uF PVin En OCselect Co1 0.1 uF Rboot 2 Figure 28: Application circuit for a 12V to 1.2V, 16A Point of Load Converter Using the Internal LDO Suggested Bill of Material for application circuit 12V to 1.2V Part Reference Qty Value Description Manufacturer Part Number Cpvin1 1 330uF SMD, electrolytic, 25V, 20% Panasonic EEV-FK1E331P Cpvin2 5 22uF 1206, 25V, X5R, 10% Murata GRM31CR61E226KE15L Cref 1 100pF 0603, 50V, C0G, 5% Murata GRM1885C1H101JA01D Cvin 1 1.0uF 0603, 25V, X5R, 20% Murata GRM188R61E105KA12D Cvcc 1 10uF 0603, 10V, X5R, 20% TDK C1608X5R1A106M Cpvin3 Cboot Co1 3 0.1uF 0603, 25V, X7R, 10% Murata GRM188R71E104KA01D Cc1 1 2200pF 0603, 50V, X7R, 10% Murata GRM188R71H222KA01D Cc2 1 10nF 0603, 50V, X7R, 10% Murata GRM188R71H103KA01D Cc3 1 220pF 0603, 50V, NPO, 5% Murata GRM1885C1H221JA01D Cout1 6 47uF 0805, 6.3V, X5R, 20% TDK C2012X5R0J476M L0 1 0.400uH 11 x 7.2 x 7.5mm, DCR=0.29mΩ Vitec 59PR9875N Rbode 1 20 Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF20R0V Rboot 1 2 Thick Film, 0603, 1/10W, 5% Panasonic ERJ-3GEYJ2R0V Rc1 1 88.7 Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF88R7V Rc2 1 2K Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF2001V Ren1 1 7.5K Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF7501V Ren2 1 49.9K Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF4992V Rfb1 Rfb2 Rsns1Rsns1 4 5.76K Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF5761V Rt 1 39.2K Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF3922V Rpg 1 10K Thick Film, 0603, 1/10W, 1% Panasonic ERJ-3EKF1002V U1 1 IR3448 PQFN 5x6mm International Rectifier IR3448MPBF |
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