Texas Instruments CSD95379Q3M Bedienungsanleitung

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V

CC

PWM1

+I

s1

-I

s2

+NTC

-NTC

+I

s2

-I

s2

PWM2

V

OUT

SS

RT

V

CC

V

OUT

V

IN

Multiphase

Controller

CSD95379Q3M

CSD95379Q3M

P

GND

02468101214161820

40

50

60

70

80

90

100

0

1

2

3

4

5

6

Output Current (A)

Efficiency (%)

Power Loss (W)

V

DD

= 5 V

V

IN

= 12 V

V

OUT

= 1.8 V

L

OUT

= .29 µH

f

SW

= 500 kHz

T

A

= 25ºC

G001

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

CSD95379Q3M

SLPS446D–APRIL2014–REVISEDDECEMBER2016

CSD95379Q3MSynchronousBuckNexFET™PowerStage

1

1Features

1

•92.5%SystemEfficiencyat12A

•Ultra-LowPowerLossof1.8Wat12A

•MaxRatedContinuousCurrentof20AandPeak

Currentof45A

•High-FrequencyOperation(upto2MHz)

•High-DensitySON3.3-mm×3.3-mmFootprint

•Ultra-LowInductancePackage

•SystemOptimizedPCBFootprint

•LowQuiescent(LQ)andUltra-LowQuiescent

(ULQ)CurrentMode

•3.3-Vand5-VPWMSignalCompatible

•DiodeEmulationModewithFCCM

•Tri-StatePWMInput

•IntegratedBootstrapDiode

•Shoot-ThroughProtection

•RoHSCompliant–Lead-FreeTerminalPlating

•HalogenFree

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

2Applications

•NVDCNotebookandUltrabookPCs

•Tablets

•PointofLoadSynchronousBuckinNetworking,

Telecom,andComputingSystems

3Description

TheCSD95379Q3MNexFET™powerstageisa

highlyoptimizeddesignforuseinhigh-power,high-

densitysynchronousbuckconverters.Thisproduct

integratesthedriverICandNexFETtechnologyto

completethepowerstageswitchingfunction.The

driverIChasabuilt-inselectablediodeemulation

functionthatenablesDCMoperationtoimprovelight

loadefficiency.Inaddition,thedriverICsupports

ULQmodethatenablesConnectedStandbyfor

Windows

®

8.WiththePWMinputintri-state,

quiescentcurrentisreducedto130µA,with

immediateresponse.WhenSKIP#isheldattri-state,

thecurrentisreducedto8µA(typically20µsis

requiredtoresumeswitching).Thiscombination

produceshigh-current,high-efficiency,andhigh-

speedswitchingcapabilityinasmall3.3-mm×3.3-

mmoutlinepackage.Inaddition,thePCBfootprint

hasbeenoptimizedtohelpreducedesigntimeand

simplifythecompletionoftheoverallsystemdesign.

DeviceInformation

(1)

DEVICEMEDIAQTYPACKAGESHIP

CSD95379Q3M13-InchReel2500SON

3.3-mm×3.3-mm

PlasticPackage

Tape

and

Reel

CSD95379Q3MT7-InchReel250

.

ApplicationDiagramTypicalPowerStageEfficiencyandPowerLoss

Produktspezifikationen