Datasheet Linear Technology LT3559-1

ManufacturerLinear Technology

Linear USB Battery Charger with Dual Buck Regulators


LTC3559/LTC3559-1 - Linear USB Battery Charger with Dual Buck Regulators
PDF, 314 Kb, Revision: B, File uploaded: Oct 2, 2017
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Package3x3 QFN-16
Package Outline Drawing
3x3 QFN-16
Package Outline Drawing
Package CodeUDUD
Package Index05-08-169105-08-1691
Pin Count1616


Parameters / ModelsLTC3559EUD-1#PBFLTC3559EUD-1#TRPBF
Battery ChemistryLi-Ion, Li-PolymerLi-Ion, Li-Polymer
Buck Output Current, A0.4, 0.40.4, 0.4
Demo BoardsDC1085ADC1085A
Design ToolsLTspice ModelLTspice Model
Export Controlnono
FeaturesBattery Charger, Burst ModeBattery Charger, Burst Mode
Float Voltage, V4.1V, 4.2V4.1V, 4.2V
Max Charge Current, A0.950.95
Number of Cells11
Number of Outputs22
Operating Temperature Range, °C0 to 850 to 85
Type of ChargerLinearLinear
Vin Max, V5.55.5
Vin Min, V33

Eco Plan


Other Options



  • USB Compatible Li-Ion Battery Charger and Dual Buck Regulators in a Single 3mm × 3mm QFN &mdash LT Journal
    PDF, 514 Kb, File published: Jan 14, 2008
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  • New Family of Integrated Power Controllers Combine Fast Battery Charging, PowerPath Control and Efficient DC/DC Converters in Less Than 20mm2 &mdash LT Journal
    PDF, 303 Kb, File published: Sep 23, 2008
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Model Line

Manufacturer's Classification

  • Power Management > Battery Management > Battery Charger IC > Linear Battery Chargers
  • Power Management > PMIC & Multifunction > Battery Charger Plus DC/DC