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Datasheet Linear Technology LTC3814-5

ManufacturerLinear Technology
SeriesLTC3814-5

60V Current Mode Synchronous Step-Up Controller

Datasheets

  • Download » Datasheet, PDF, 366 Kb, Revision: C, File uploaded 09-23-2017
    LTC3814-5 - 60V Current Mode Synchronous Step-Up Controller
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    LTC3814-5
    60V Current Mode
    Synchronous Step-Up Controller
    FEATURES DESCRIPTION
    The LTC3814-5 is a synchronous step-up switching regulator controller that can generate output voltages up to
    60V. The LTC3814-5 uses a constant off-time peak current
    control architecture to deliver very high duty cycles with
    accurate cycle-by-cycle current limit without requiring a
    sense resistor. High Output Voltages: Up to 60V
    Large 1Ω Gate Drivers
    No Current Sense Resistor Required
    Dual N-Channel MOSFET Synchronous Drive
    ±0.5% 0.8V Voltage Reference
    Fast Transient Response
    Programmable Soft-Start
    Generates 5.5V Driver Supply
    Power Good Output Voltage Monitor
    Adjustable Off-Time/Frequency: tOFF(MIN) < 100ns
    Adjustable Cycle-by-Cycle Current Limit
    Undervoltage Lockout On Driver Supply
    Output Overvoltage Protection
    Thermally Enhanced 16-Pin TSSOP Package A precise internal reference provides ±0.5% DC accuracy.
    A high bandwidth (25MHz) error amplifier provides very ...

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Packaging

Parametrics

LTC3814EFE-5#PBFLTC3814EFE-5#TRPBFLTC3814IFE-5#PBFLTC3814IFE-5#TRPBF
ArchitectureConstant Off-Time Peak Current ModeConstant Off-Time Peak Current ModeConstant Off-Time Peak Current ModeConstant Off-Time Peak Current Mode
Demo BoardsDC1170ADC1170ADC1170ADC1170A
Design ToolsLTspice ModelLTspice ModelLTspice ModelLTspice Model
Export Controlnononono
FeaturesNo Rsense, Resistor Set Frequency, External Synchronization, Power GoodNo Rsense, Resistor Set Frequency, External Synchronization, Power GoodNo Rsense, Resistor Set Frequency, External Synchronization, Power GoodNo Rsense, Resistor Set Frequency, External Synchronization, Power Good
Frequency, kHz1000100010001000
Frequency Adjust Range100kHz - 1MHz100kHz - 1MHz100kHz - 1MHz100kHz - 1MHz
Frequency Sync Range100kHz - 1MHz100kHz - 1MHz100kHz - 1MHz100kHz - 1MHz
Integrated Inductornononono
Ishutdown, A224224224224
Isupply, mA3333
Max Phases1111
Monolithicnononono
Number of Outputs1111
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Polyphasenononono
Sense ResistorRsenseRsenseRsenseRsense
Switch Current, A25252525
Synchronousyesyesyesyes
TopologyBoostBoostBoostBoost
Vin Max, V55555555
Vin Min, V4.54.54.54.5
Vin Min Startup, V4.54.54.54.5
Vout Max, V60606060
Vout Maximum60V60V60V60V
Vout Min, V4.54.54.54.5
Vswitch Max, V60606060

Eco Plan

Articles

  • Download » Articles - LT Journal, PDF, 489 Kb, 01-14-2008
    Synchronous Boost Converters Provide High Voltage without the Heat
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    DESIGN FEATURES L Synchronous Boost Converters Provide
    High Voltage without the Heat
    by Greg Dittmer Introduction
    The LTC3813 and LTC3814-5 reduce
    the size of high voltage, high power
    boost converters by incorporating
    heat-saving features that eliminate
    the need for large components and
    heat sinks. In particular, two features
    significantly reduce heat losses over
    other high power boost solutions:
    q Synchronous control eliminates
    the high power loss in the diode
    at high output currents
    q Strong internal gate drivers
    reduce switching losses at high
    output voltages.
    The LTC3813 can regulate output voltages up to 100V, while the LTC3814-5 is suitable for applications
    up to 60V. They both use a constant
    off-time peak current mode control
    architecture. Current mode control
    provides tight cycle-by-cycle monitoring of inductor current and constant
    off-time allows high conversion ratios ...

Moldel Line

Series: LTC3814-5 (4)

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Up (Boost) Regulators > External Power Switch Boost

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