Datasheet Linear Technology LT8640S

ManufacturerLinear Technology
SeriesLT8640S

42V, 6A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current

Datasheets

Datasheet LT8640S, LT8643S
PDF, 2.3 Mb, Language: en, File uploaded: Sep 20, 2017, Pages: 30
42V, 6A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current
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Prices

Packaging

LT8640SEV#PBFLT8640SIV#PBF
N12
Package4mm × 4mm × 0.94mm LQFN
Package Outline Drawing
4mm × 4mm × 0.94mm LQFN
Package Outline Drawing
Package CodeLQFNLQFN
Package Index05-08-151105-08-1511
Pin Count2424

Parametrics

Parameters / ModelsLT8640SEV#PBFLT8640SIV#PBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC2530ADC2530A
Design ToolsLTspice Model,LTpowerCAD ModelLTspice Model,LTpowerCAD Model
Export Controlnono
FeaturesLow EMI, Silent Switcher 2 Architecture, Internal Bypass Caps, Resistor Set Frequency, External Synchronization, Burst Mode, Tracking, Power GoodLow EMI, Silent Switcher 2 Architecture, Internal Bypass Caps, Resistor Set Frequency, External Synchronization, Burst Mode, Tracking, Power Good
Frequency, kHz30003000
Frequency Adjust Range200kHz - 3MHz200kHz - 3MHz
Frequency Sync Range200kHz - 3MHz200kHz - 3MHz
Integrated Inductornono
Ishutdown, µA1.71.7
Isupply, mA0.00170.0017
Max Phases11
Monolithicyesyes
Number of Outputs11
Operating Temperature Range, °C0 to 85-40 to 85
Output Current, A66
Polyphasenono
Switch Current, A1010
Synchronousyesyes
TopologyBuckBuck
Topology 1BuckBuck
Vin Max, V4242
Vin Min, V3.43.4
Vin Min Startup, V3.43.4
Vout Max, V41.5841.58
Vout Maximum0.99Vin0.99Vin
Vout Min, V0.970.97
Vref Accuracy Over Temp, %1.231.23

Eco Plan

LT8640SEV#PBFLT8640SIV#PBF
RoHSCompliantCompliant

Other Options

LT8643S LT8643S

Model Line

Series: LT8640S (2)

Manufacturer's Classification

  • Power Management > Switching Regulator > Ultralow Noise Regulators
  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck
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