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MAX877 Datasheet(PDF) 10 Page - Maxim Integrated Products |
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MAX877 Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 12 page Layout The MAX877/MAX878/MAX879’s high peak currents and high-frequency operation make PC layout impor- tant for minimum ground bounce and noise. Locate input bypass and output filter capacitors close to the device pins. All connections to the FB pin (MAX879) should also be kept as short as possible. A ground plane is recommended. Solder AGND (pin 3) and PGND (pin 4) directly to the ground plane. Refer to the MAX877/MAX878/MAX879 evaluation kit (EV kit) manu- al for a suggested surface-mount layout. 5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters 10 ______________________________________________________________________________________ Table 1. Component Suppliers INDUCTORS CAPACITORS Sumida CD54-220 (22µH) Murata-Erie LQHYN1501K04M00-D5 (15µH) CoilCraft DO3316-223 (22µH) Coiltronics CTX20-1 (22µH) Sprague 595D Sprague 695D Matsuo 267 series AVX TPS series Surface Mount Sanyo OS-CON (low-ESR organic semiconductor) Sumida RCH654-220 (22µH) Miniature Through-Hole PRODUCTION METHOD Nichicon PL series (low-ESR electrolytic) United Chemi-Con LXF series Renco RL 1284-22 (22µH) CoilCraft PCH-27-223 (22µH) Low-Cost Through-Hole FAX (207) 283-1941 FAX (708) 639-1469 FAX (407) 241-9339 FAX (714) 960-6492 FAX (814) 238-0490 FAX (708) 843-2798 FAX (81) 7-5256-4158 FAX (516) 586-5562 FAX (619) 661-1055 FAX (0720) 70-1174 FAX (603) 224-1430 FAX (708) 956-0702 FAX (81) 2070-1174 FAX (714) 255-9400 (207) 282-5111 (708) 639-6400 (407) 241-7876 (714) 969-2491 (06) 332-0871 (800) 831-9172 (708) 843-7500 (81) 7-5231-8461 (516) 586-5566 (619) 661-6835 (0720) 70-1005 (603) 224-1961 (708) 956-0666 (81) 3607-5111 (714) 255-9500 USA: USA: USA: USA: Japan: USA: USA: Japan: USA: USA: Japan: USA: USA: Japan: USA: AVX CoilCraft Coiltronics Matsuo Murata-Erie Nichicon Renco Sanyo Sprague Sumida United Chemi-Con |
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