LM2595S-12 datasheet(10/41 Pages) TI1

Numer części	LM2595S-12

Szczegółowy opis	LM2595 SIMPLE SWITCHER짰 Power Converter 150 kHz 1A Step-Down Voltage Regulator

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Producent	TI1 [Texas Instruments]

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10 / 41 page

LM2595

SNVS122B – MAY 1999 – REVISED APRIL 2013

www.ti.com

Test Circuit and Layout Guidelines

Fixed Output Voltage Versions

CIN—120 μF, 50V, Aluminum Electrolytic Nichicon “PL Series”

COUT—120 μF, 25V Aluminum Electrolytic, Nichicon “PL Series”

D1—3A, 40V Schottky Rectifier, 1N5822

L1—100

μH, L29

Adjustable Output Voltage Versions

CIN—120 μF, 50V, Aluminum Electrolytic Nichicon “PL Series”

COUT—120 μF, 25V Aluminum Electrolytic, Nichicon “PL Series”

D1—3A, 40V Schottky Rectifier, 1N5822

L1—100

μH, L29

R1—1 kΩ, 1%

CFF—See Application Information Section

Figure 21. Standard Test Circuits and Layout Guides

Standard Test Circuits and Layout Guides

As in any switching regulator, layout is very important. Rapidly switching currents associated with wiring

inductance can generate voltage transients which can cause problems. For minimal inductance and ground

loops, the wires indicated by heavy lines should be wide printed circuit traces and should be kept as short

as possible. For best results, external components should be located as close to the switcher lC as possible

using ground plane construction or single point grounding.

10

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