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ManufacturerLinear Technology
SeriesLTC3606B

800mA Synchronous Step-Down DC/DC with Average Input Current Limit

Datasheets

  • Download » Datasheet, PDF, 354 Kb, Revision: B, File uploaded 09-22-2017
    LTC3606B - 800mA Synchronous Step-Down DC/DC with Average Input Current Limit
    Docket ↓
    LTC3606B
    800mA Synchronous
    Step-Down DC/DC with
    Average Input Current Limit
    DESCRIPTION FEATURES Programmable Average Input Current Limit:
    ±5% Accuracy
    Step-Down Output: Up to 96% Efficiency
    Low Noise Pulse-Skipping Operation at Light Loads
    Input Voltage Range: 2.5V to 5.5V
    Output Voltage Range: 0.6V to 5V
    2.25MHz Constant-Frequency Operation
    Power Good Output Voltage Monitor
    Low Dropout Operation: 100% Duty Cycle
    Internal Soft-Start
    Current Mode Operation for Excellent Line and Load
    Transient Response
    ±2% Output Voltage Accuracy
    Short-Circuit Protected
    Shutdown Current ≤ 1μA
    Available in Small Thermally Enhanced 8-Lead
    3mm × 3mm DFN Package APPLICATIONS The LTC®3606B is an 800mA monolithic synchronous
    buck regulator using a constant frequency current mode
    architecture. ...

Prices

Packaging

Parametrics

LTC3606BEDD#PBFLTC3606BEDD#TRPBFLTC3606BIDD#PBFLTC3606BIDD#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Design ToolsLTspice FileLTspice FileLTspice FileLTspice File
Export Controlnononono
FeaturesProgrammable Input Current Limit, Power Good, 100% Duty CycleProgrammable Input Current Limit, Power Good, 100% Duty CycleProgrammable Input Current Limit, Power Good, 100% Duty CycleProgrammable Input Current Limit, Power Good, 100% Duty Cycle
Frequency, kHz2500250025002500
Integrated Inductornononono
Ishutdown, A0.10.10.10.1
Isupply, mA0.420.420.420.42
Max Phases1111
Monolithicyesyesyesyes
Number of Outputs1111
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Output Current, A0.80.80.80.8
Polyphasenononono
Switch Current, A2.42.42.42.4
Synchronousyesyesyesyes
TopologyBuckBuckBuckBuck
Vin Max, V5.55.55.55.5
Vin Min, V2.52.52.52.5
Vout Max, V5555
Vout MaximumVinVinVinVin
Vout Min, V0.60.60.60.6
Vref Accuracy Over Temp, %3333

Eco Plan

Design Notes

  • Download » Design Notes - DN485, PDF, 106 Kb, 10-26-2010
    Complete Energy Utilization Improves Run Time of a Supercap Ride-Through Application by 40%
    Docket ↓
    Complete Energy Utilization Improves Run Time of a Supercap
    Ride-Through Application by 40% – Design Note 485
    George H. Barbehenn
    Introduction
    Many electronic systems require a local power source that
    allows them to ride through brief main power interruptions without shutting down. Some local power sources
    must be available to carry out a controlled shutdown if
    the main power input is abruptly removed. Complete Energy Utilization Maximizes Run Time
    of Supercap Ride-Through Application
    Figure 1 shows a complete 3.3V/200mA ride-through application that maximizes the amount of power extracted
    from the supercap to support the load. A battery backup can supply power in the event of a
    mains shutdown, but batteries are not well suited to
    this particular application. Although batteries can store
    significant amounts of energy, they cannot deliver much
    power due to their significant source impedance. Also,
    batteries have finite lives of ~2 to 3 years, and the maintenance required for rechargeable batteries is substantial. The LTC ®4425 complete 2A supercapacitor charger. It
    clamps the individual cell voltages to ensure that the
    cells do not overvoltage during charging and balances
    the cells throughout charge and discharge. The main components of the ride-through application
    include: The LTC3606 micropower buck regulator produces
    the regulated 3.3V output. Supercapacitors are well suited to such ride-through
    applications. Their low source impedance allows them
    to supply significant power for a relatively short time, ...

Moldel Line

Series: LTC3606B (4)

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck
  • Power Management > Supercapacitor Chargers

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