SC561 datasheet(13/15 Pages) SEMTECH

Part #	SC561

Description	Dual Output Low Noise LDO Linear Regulator

PDF	15 Pages

Scroll/Zoom	100%

Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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13 / 15 page

SC561

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. The diagram below illus-

trates proper layout of a circuit.

Attach the part to a large copper footprint, to

enable better heat transfer from the device on

PCBs where there are internal power and ground

planes.

•

Applications Information (continued)

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.

•

Scale = 20:1 (20mm = 1mm)

Layer 1

Layer 2

Via between Layer 1

and Layer 2

SC561

CIN

COUTB

COUTA

CBYP

SC561 Datasheet(PDF) 13 Page - Semtech Corporation