Datasheet Linear Technology LTC3890HUH#PBF

ManufacturerLinear Technology
SeriesLTC3890
Part NumberLTC3890HUH#PBF

60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller

Datasheets

Datasheet LTC3890
PDF, 935 Kb, File uploaded: Dec 25, 2016, Pages: 40
60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
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Prices

Packaging

Package5x5 QFN-32
Package CodeUH
Package Index05-08-1693

Parametrics

ArchitectureConstant Frequency Current Mode
Demo BoardsDC2236A-B
Design ToolsLTspice File,LTpowerCAD File
Export Controlno
FeaturesBurst Mode, DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Power Good, PolyPhase
Frequency900 kHz
Frequency Adjust Range50kHz - 900kHz
Frequency Sync Range75kHz - 850kHz
Integrated Inductorno
Ishutdown14 µA
Isupply0.06 mA
Max Phases2
Monolithicno
Number of Outputs2
Operating Temperature Range-40 to 125 °C
Output Current15 A
Output Current 215 A
Polyphaseyes
Sense ResistorRsense, DCR
Switch Current15 A
Switch Current 215 A
Synchronousyes
TopologyBuck
Topology 1Buck
Topology 2Buck
Vin Max60 V
Vin Min4 V
Vout Max24 V
Vout Maximum24V
Vout Min0.8 V
Vout Min 20.8 V
Vref Accuracy Over Temp1 %

Eco Plan

RoHSCompliant

Design Notes

  • Step-Down Converter Delivers 25A at 12VOUT from Inputs Up to 60V &mdash DN1024
    PDF, 141 Kb, File published: Mar 13, 2012
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  • Dual Output High Efficiency Converter Produces 3.3V and 8.5V Outputs from a 9V to 60V Rail &mdash DN479
    PDF, 291 Kb, File published: May 4, 2010
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  • Bootstrap Biasing of High Input Voltage Step-Down Controller Increases Converter Efficiency &mdash DN493
    PDF, 71 Kb, File published: Jul 15, 2011
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Articles

  • Dual Output High Efficiency Converter Produces 3.3V and 8.5V Outputs from a 9V to 60V Rail &mdash LT Journal
    PDF, 763 Kb, File published: Jun 30, 2010
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  • Step-Down Converter Delivers 25A at 12V Output from Inputs Up to 60V &mdash LT Journal
    PDF, 2.2 Mb, File published: Jul 20, 2012
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Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Micropower Buck Regulators | High Input Voltage Buck | External Power Switch Buck Controllers
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Other Names:

LTC3890HUHPBF, LTC3890HUH PBF

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