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Datasheet Linear Technology LTC3371

Manufacturer:Linear Technology
Series:LTC3371

4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset

Datasheets

  • Download » Datasheet, PDF, 1.1 Mb, Revision: B
    LTC3371 - 4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset
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    LTC3371
    4-Channel 8A Configurable
    Buck DC/DCs with Watchdog
    and Power-On Reset
    DESCRIPTION FEATURES 8 × 1A Buck Power Stages Configurable as 2, 3 or 4
    Output Channels
    n 8 Unique Output Configurations (1A to 4A Per Channel)
    n Independent V Supplies for Each DC/DC (2.25V to 5.5V)
    IN
    n Low Total No Load Supply Current: n 15µA In Shutdown (All Channels Off) n 68µA One Channel Active in Burst Mode® Operation n 18µA Per Additional Channel
    n Precision Enable Pin Thresholds for Autonomous
    Sequencing
    n 1MHz to 3MHz RT Programmable Frequency
    (2MHz Default) or PLL Synchronizatio Temp Monitor Indicates Die Temperature
    n CT Programmed Watchdog Timer
    n Independent RST Pins Indicate Buck in Regulatio Thermally Enhanced 38-Lead 5mm × 7mm QFN and
    TSSOP Packages
    n APPLICATIONS General Purpose Multichannel Power Supplies:
    Automotive, Industrial, Distributed Power Systems n The LTC®3371 is a highly flexible multioutput power supply
    IC. The device includes four synchronous buck converters, configured to share eight 1A power stages, each of
    which is powered from independent 2.25V to 5.5V inputs.
    The DC/DCs are assigned to one of eight possible power
    configurations via pin programmable C1-C3 pins. The ...

Prices

Packaging

 LTC3371EFE#PBFLTC3371EFE#TRPBFLTC3371EUHF#PBFLTC3371EUHF#TRPBFLTC3371HFE#PBFLTC3371HFE#TRPBFLTC3371HUHF#PBFLTC3371HUHF#TRPBFLTC3371IFE#PBFLTC3371IFE#TRPBFLTC3371IUHF#PBFLTC3371IUHF#TRPBF
PackageTSSOP-38TSSOP-385x7 QFN-385x7 QFN-38TSSOP-38TSSOP-385x7 QFN-385x7 QFN-38TSSOP-38TSSOP-385x7 QFN-385x7 QFN-38
Package CodeFEFEUHFUHFFEFEUHFUHFFEFEUHFUHF

Parametrics

 LTC3371EFE#PBFLTC3371EFE#TRPBFLTC3371EUHF#PBFLTC3371EUHF#TRPBFLTC3371HFE#PBFLTC3371HFE#TRPBFLTC3371HUHF#PBFLTC3371HUHF#TRPBFLTC3371IFE#PBFLTC3371IFE#TRPBFLTC3371IUHF#PBFLTC3371IUHF#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC2182ADC2182ADC2182ADC2182ADC2182ADC2182ADC2182ADC2182ADC2182ADC2182ADC2182ADC2182A
Export Control, yes/nonononononononononononono
FeaturesBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog TimerBurst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog Timer
Frequency, kHz200020002000200020002000200020002000200020002000
Frequency Adjust Range1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz
Frequency Sync Range1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz1MHz - 3MHz
Integrated Inductor, yes/nonononononononononononono
Ishutdown, µA151515151515151515151515
Isupply, mA0.050.050.050.050.050.050.050.050.050.050.050.05
Monolithic, yes/noyesyesyesyesyesyesyesyesyesyesyesyes
Number of Outputs444444444444
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 125-40 to 125-40 to 125-40 to 125-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A222222222222
Output Current 2, A222222222222
Output Current 3, A222222222222
Polyphase, yes/nonononononononononononono
Switch Current, A4.64.64.64.64.64.64.64.64.64.64.64.6
Switch Current 2, A4.64.64.64.64.64.64.64.64.64.64.64.6
Switch Current 3, A4.64.64.64.64.64.64.64.64.64.64.64.6
Synchronous, yes/noyesyesyesyesyesyesyesyesyesyesyesyes
TopologyBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Topology 1BuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Topology 2BuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Topology 3BuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V5.55.55.55.55.55.55.55.55.55.55.55.5
Vin Min, V2.72.72.72.72.72.72.72.72.72.72.72.7
Vout Max, V5.455.455.455.455.455.455.455.455.455.455.455.45
Vout Max 2, V5.455.455.455.455.455.455.455.455.455.455.455.45
Vout Max 3, V5.455.455.455.455.455.455.455.455.455.455.455.45
Vout Maximum0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin0.99Vin
Vout Min, V0.80.80.80.80.80.80.80.80.80.80.80.8
Vout Min 2, V0.80.80.80.80.80.80.80.80.80.80.80.8
Vout Min 3, V0.80.80.80.80.80.80.80.80.80.80.80.8
Vref Accuracy Over Temp, %2.52.52.52.52.52.52.52.52.52.52.52.5

Eco Plan

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Internal Power Switch Buck
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

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