MAX1733 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1733

Low-Voltage, Step-Down DC-DC Converters in SOT23

Maxim Integrated 

Low-Voltage, Step-Down DC-DC Converters

in SOT23

Layout Considerations

High switching frequencies make PC board layout a

very important part of design. Good design minimizes

excessive EMI on the feedback paths and voltage gra-

dients in the ground plane, both of which can result in

instability or regulation errors. Connect the inductor,

input filter capacitor, and output filter capacitor as

close to the device as possible, and keep their traces

short, direct, and wide. Connect their ground pins at a

single common node in a star ground configuration.

The external voltage-feedback network should be very

close to the FB pin, within 0.2 inches (5mm). Keep

noisy traces, such as the LX trace, away from the volt-

age-feedback network; also keep them separate, using

grounded copper. The MAX1733/MAX1734 evaluation

kit data sheet includes a proper PC board layout and

routing scheme.

Chip Information

TRANSISTOR COUNT: 1190

PROCESS: BiCMOS

Package Information

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

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is a registered trademark of Maxim Integrated Products.

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