Datasheet Linear Technology LTC3858 — Datenblatt

HerstellerLinear Technology
SerieLTC3858

Low I Q , doppelter synchroner 2-Phasen-Abwärtsregler

Datenblätter

Datasheet LTC3858
PDF, 434 Kb, Sprache: en, Datei hochgeladen: Sep 23, 2017, Seiten: 38
Low IQ, Dual 2-Phase Synchronous Step-Down Controller
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Preise

Verpackung

LTC3858EUH#PBFLTC3858EUH#TRPBFLTC3858IUH#PBFLTC3858IUH#TRPBF
N1234
Package5x5 QFN-32
Paketumrisszeichnung
5x5 QFN-32
Paketumrisszeichnung
5x5 QFN-32
Paketumrisszeichnung
5x5 QFN-32
Paketumrisszeichnung
Package CodeUHUHUHUH
Package Index05-08-169305-08-169305-08-169305-08-1693
Pin Count32323232

Parameter

Parameters / ModelsLTC3858EUH#PBFLTC3858EUH#TRPBFLTC3858IUH#PBFLTC3858IUH#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC1381A-B,DC1510A-A,DC1510A-BDC1381A-B,DC1510A-A,DC1510A-BDC1381A-B,DC1510A-A,DC1510A-BDC1381A-B,DC1510A-A,DC1510A-B
Design ToolsLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD File
Export Controlnononono
FeaturesDCR Current Sense, Resistor Set Frequency, External Synchronization, Burst Mode, Power Good, PolyPhaseDCR Current Sense, Resistor Set Frequency, External Synchronization, Burst Mode, Power Good, PolyPhaseDCR Current Sense, Resistor Set Frequency, External Synchronization, Burst Mode, Power Good, PolyPhaseDCR Current Sense, Resistor Set Frequency, External Synchronization, Burst Mode, Power Good, PolyPhase
Frequency, kHz900900900900
Frequency Adjust Range50kHz - 900kHz50kHz - 900kHz50kHz - 900kHz50kHz - 900kHz
Frequency Sync Range75kHz - 850kHz75kHz - 850kHz75kHz - 850kHz75kHz - 850kHz
Integrated Inductornononono
Ishutdown, µA8888
Isupply, mA0.170.170.170.17
Max Phases2222
Monolithicnononono
Number of Outputs2222
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Output Current, A25252525
Output Current 2, A25252525
Polyphaseyesyesyesyes
Sense ResistorRsense, DCRRsense, DCRRsense, DCRRsense, DCR
Switch Current, A25252525
Switch Current 2, A25252525
Synchronousyesyesyesyes
TopologyBuckBuckBuckBuck
Topology 1BuckBuckBuckBuck
Topology 2BuckBuckBuckBuck
Vin Max, V38383838
Vin Min, V4444
Vout Max, V24242424
Vout Maximum24V24V24V24V
Vout Min, V0.80.80.80.8
Vout Min 2, V.8.8.8.8
Vref Accuracy Over Temp, %1111

Öko-Plan

LTC3858EUH#PBFLTC3858EUH#TRPBFLTC3858IUH#PBFLTC3858IUH#TRPBF
RoHSCompliantCompliantCompliantCompliant

Modellreihe

Herstellerklassifikation

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | External Power Switch Buck Controllers
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