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Datasheet Linear Technology LTC3447

ManufacturerLinear Technology
SeriesLTC3447

I²C Controllable Buck Regulator in 3mm × 3mm DFN

Datasheets

  • Download » Datasheet PDF, 578 Kb, File uploaded: Sep 21, 2017
    LTC3447: I²C Controllable Buck Regulator in 3mm × 3mm DFN Data Sheet
    Docket ↓
    LTC3447
    I2C Controllable Buck
    Regulator in 3mm × 3mm DFN
    U FEATURES


















    ■ DESCRIPTIO I2C Programmable Output with 21.6mV Resolution ...

Prices

Packaging

LTC3447EDD#PBFLTC3447EDD#TRPBF
Package3x3 DFN-10
Package Outline Drawing
3x3 DFN-10
Package Outline Drawing
Package CodeDDDD
Package Index05-08-169905-08-1699
Pin Count1010

Parametrics

LTC3447EDD#PBFLTC3447EDD#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC767ADC767A
Export Controlnono
FeaturesI2C Control, Burst ModeI2C Control, Burst Mode
Frequency, kHz10001000
Integrated Inductornono
Ishutdown, A0.10.1
Isupply, mA0.0330.033
Max Phases11
Monolithicyesyes
Number of Outputs11
Operating Temperature Range, °C0 to 850 to 85
Output Current, A0.60.6
Polyphasenono
Switch Current, A11
Synchronousyesyes
TopologyBuckBuck
Vin Max, V5.55.5
Vin Min, V2.52.5
Vout Max, V2.052.05
Vout Maximum2.05V2.05V
Vout Min, V0.690.69
Vref Accuracy Over Temp, %33

Eco Plan

LTC3447EDD#PBFLTC3447EDD#TRPBF
RoHSCompliantCompliant

Articles

  • Download » Articles - LT Journal PDF, 148 Kb, File published: Sep 1, 2005
    Digitally Programmable Output Monolithic Buck Regulator with Built-In DAC and I2C Interface
    Docket ↓
    DESIGN IDEAS Digitally Programmable Output
    Monolithic Buck Regulator with
    Built-In DAC and I2C Interface by Earl Barber
    Introduction Minimal Space
    Figures 1 and 2 show the LTC3447
    powered from a single Lithium-Ion
    battery. To minimize critical board
    real estate, only two ceramic capacitors, a single inductor, and a single
    resistor are required for operation.
    The LTC3447 regulator is internally
    Linear Technology Magazine September 2005 VIN
    Li-Ion
    2.5V TO 5.5V I2C PWREN VCCD 10k C2
    4.7µF
    CERAMIC C3
    4.7µF 10k SDA
    SCL VIN RUN RPU1
    20k VIN PGOOD
    LTC3447
    VCCD
    SW
    SDA VOUT SCL FB L1
    3.3µH C1 ...

Moldel Line

Series: LTC3447 (2)

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck
  • Power Management > Switching Regulator > Digitally Programmable Regulators

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