LTC3838-2_15 Datasheet, PDF(46/56 Page) Linear Technology – Dual, Fast, Accurate Step-Down DC/DC Controller with xternal Reference Voltage and Dual Differential Output Sensing

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LTC3838-2_15 Datasheet, PDF (46/56 Pages) Linear Technology – Dual, Fast, Accurate Step-Down DC/DC Controller with xternal Reference Voltage and Dual Differential Output Sensing

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LTC3838-2

APPLICATIONS INFORMATION

VREF2

RDFB2

RDFB1

RDFB1//RDFB2

RITH2(2)

RITH1(2) CITH1(2)

CITH2(2)

VDFB2â SENSE2+ SENSE2â DTR2 RUN2 PGOOD2 BOOST2

VDFB2+

TG2

SW2

BG2

EXTVREF2

ITH2

LTC3838-2

DRVCC2

EXTVCC

INTVCC

TRACK/SS2

CSS2

LOCALIZED

SGND TRACE

MODE/PLLIN

CLKOUT

SGND

PGND

VIN

PHASMD

CITH2(1)

RITH1(1)

RITH2(1)

ITH1

CITH1(1)

DRVCC1

BG1

RFB2(1)

CSS1

RFB1(1)

TRACK/SS1

VOUTSENSE1+

VOUTSENSE1â SENSE1+ SENSE1â DTR1

SW1

TG1

RUN1 PGOOD1 BOOST1

CB2

DB2

RINTVCC

CINTVCC

CDRVCC

DB1

CB1

RSENSE2

VOUT2

MT2

MB2

CERAMIC

COUT2

CVIN VIN

RVIN

CIN

CERAMIC

PGND

COUT1

MT1

MB1

RSENSE1

VOUT1

BOLD LINES INDICATE HIGH SWITCHING CURRENT. KEEP LINES TO A MINIMUM LENGTH

Figure 14. Recommended PCB Layout Diagram

38382 F14

For more information www.linear.com/3838-2

38382f

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