Datasheet Linear Technology LTC3858-2

ManufacturerLinear Technology
SeriesLTC3858-2

Low IQ, Dual 2-Phase Synchronous Step-Down Controller

Datasheets

Datasheet LTC3858-2
PDF, 448 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 40
Low IQ, Dual 2-Phase Synchronous Step-Down Controller
Extract from the document

Prices

Packaging

LTC3858EUH-2#PBFLTC3858EUH-2#TRPBFLTC3858IUH-2#PBFLTC3858IUH-2#TRPBF
N1234
Package5x5 QFN-32
Package Outline Drawing
5x5 QFN-32
Package Outline Drawing
5x5 QFN-32
Package Outline Drawing
5x5 QFN-32
Package Outline Drawing
Package CodeUHUHUHUH
Package Index05-08-169305-08-169305-08-169305-08-1693
Pin Count32323232

Parametrics

Parameters / ModelsLTC3858EUH-2#PBFLTC3858EUH-2#TRPBFLTC3858IUH-2#PBFLTC3858IUH-2#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Design ToolsLTspice Model,LTpowerCAD ModelLTspice Model,LTpowerCAD ModelLTspice Model,LTpowerCAD ModelLTspice Model,LTpowerCAD Model
Export Controlnononono
FeaturesBurst Mode, Tracking, Resistor Set Frequency, External Synchronization, DCR Current Sense, Anti-Phase Switching, Power GoodBurst Mode, Tracking, Resistor Set Frequency, External Synchronization, DCR Current Sense, Anti-Phase Switching, Power GoodBurst Mode, Tracking, Resistor Set Frequency, External Synchronization, DCR Current Sense, Anti-Phase Switching, Power GoodBurst Mode, Tracking, Resistor Set Frequency, External Synchronization, DCR Current Sense, Anti-Phase Switching, Power Good
Frequency, kHz900900900900
Frequency Adjust Range50kHz - 900kHz50kHz - 900kHz50kHz - 900kHz50kHz - 900kHz
Frequency Sync Range75kHz - 850kHz75kHz - 850kHz75kHz - 850kHz75kHz - 850kHz
Integrated Inductornononono
Ishutdown, µA8888
Isupply, mA0.40.40.40.4
Max Phases2222
Monolithicnononono
Number of Outputs2222
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Output Current, A20202020
Output Current 2, A20202020
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, V0.80.80.80.8
Vref Accuracy Over Temp, %1111

Eco Plan

LTC3858EUH-2#PBFLTC3858EUH-2#TRPBFLTC3858IUH-2#PBFLTC3858IUH-2#TRPBF
RoHSCompliantCompliantCompliantCompliant

Model Line

Manufacturer's Classification

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