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