Datasheet Linear Technology LTC3838EUHF-1#PBF

ManufacturerLinear Technology
SeriesLTC3838-1
Part NumberLTC3838EUHF-1#PBF

Dual, Fast, Accurate Step-Down DC/DC Controller with Dual Differential Output Sensing

Datasheets

Datasheet LTC3838-1
PDF, 890 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 54
Dual, Fast, Accurate Step-Down DC/DC Controller with Dual Differential Output Sensing
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Prices

Packaging

Package5x7 QFN-38
Package CodeUHF
Package Index05-08-1701

Parametrics

ArchitectureControlled On-Time Valley Current Mode
Demo BoardsDC1997A-A
Design ToolsLTspice File,LTpowerCAD Model
Export Controlno
FeaturesDifferential Remote Sense, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking
Frequency2000 kHz
Frequency Adjust Range200kHz to 2MHz
Frequency Sync Range200kHz to 2MHz
Integrated Inductorno
Ishutdown15 µA
Isupply3 mA
Max Phases2
Monolithicno
Number of Outputs2
Operating Temperature Range0 to 85 °C
Output Current30 A
Output Current 230 A
Polyphaseyes
Sense ResistorRsense, DCR
Switch Current30 A
Switch Current 230 A
Synchronousyes
TopologyBuck
Topology 1Buck
Topology 2Buck
Vin Max38 V
Vin Min4.5 V
Vout Max5.5 V
Vout Maximum5.5V
Vout Min0.6 V
Vout Min 20.6 V
Vref Accuracy Over Temp0.67 %

Eco Plan

RoHSCompliant

Application Notes

  • Modeling and Loop Compensation Design of Switching Mode Power Supplies &mdash AN149
    PDF, 1.4 Mb, File published: Mar 23, 2015
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Articles

  • Dual, Fast, Step-Down Controller's External Reference Input Enables Dynamic Voltage Scaling from 0.4V to 5.5V and 0.3% Total Combined Regulation Accuracy &mdash LT Journal
    PDF, 2.8 Mb, File published: Apr 10, 2013
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Model Line

Manufacturer's Classification

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

Other Names:

LTC3838EUHF-1PBF, LTC3838EUHF-1 PBF, LTC3838EUHF1#PBF, LTC3838EUHF 1#PBF