SC1458 Ver la hoja de datos (PDF) - Semtech Corporation

Número de pieza

componentes Descripción

Fabricante

SC1458

Dual Output Low Noise LDO Linear Regulator

Semtech Corporation 

SC1458

Applications Information (continued)

PCB Layout Considerations

While layout for linear devices is generally not as critical

as for a switching application, careful attention to detail

will ensure reliable operation.

• Attach the part to a large copper footprint,

particularly the thermal pad on the underside

of the device, to enable better heat transfer,

particularly on PCBs where there are

internal power and ground planes.

• Place the input, output, and bypass capacitors

close to the device for optimal transient

response and device behavior.

• Connect all ground connections directly to the

ground plane whenever possible to minimize

ground potential differences on the PCB.

• Ensure that the feedback resistors are placed as

close as possible to the feedback pins.

COUTB

CIN

SC1458B

CBYP

COUTA

11

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