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Datasheet Linear Technology LT1949

Manufacturer:Linear Technology
Series:LT1949

600kHz, 1A Switch PWM DC/DC Converter

Datasheets

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    LT1949 - 600kHz, 1A Switch PWM DC/DC Converter
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    LT1949
    600kHz, 1A Switch
    PWM DC/DC Converter
    U FEATURES






    ■ DESCRIPTIO The LT ®1949 is a fixed frequency step-up DC/DC converter with a 1A, 0.5Ω internal switch. Capable of generating 10V at 175mA from a 3.3V input, the LT1949 is ideal
    for generating bias voltages for large screen LCD panels.
    Constant frequency 600kHz operation results in a low
    noise output that is easy to filter and the 30V switch rating
    allows output voltage up to 28V using a single inductor. An
    external compensation pin gives the user flexibility in
    optimizing loop compensation, allowing small low ESR
    ceramic capacitors to be used at the output. The 8-lead
    MSOP and SO packages ensure a low profile overall
    solution. 1A, 0.5Ω, 30V Internal Switch
    Operates with VIN as Low as 1.5V
    600kHz Fixed Frequency Operation
    Low-Battery Detector Stays Active in Shutdown ...

Eco Plan

 LT1949EMS8#PBFLT1949EMS8#TRPBFLT1949ES8#PBFLT1949ES8#TRPBFLT1949IS8#PBFLT1949IS8#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliant

Parametrics

 LT1949EMS8#PBFLT1949EMS8#TRPBFLT1949ES8#PBFLT1949ES8#TRPBFLT1949IS8#PBFLT1949IS8#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Design ToolsLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice Model
Export Control, yes/nonononononono
Frequency, kHz110011001100110011001100
Integrated Inductor, yes/nonononononono
Ishutdown, µA252525252525
Isupply, mA4.54.54.54.54.54.5
Monolithic, yes/noyesyesyesyesyesyes
Number of Outputs111111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 85-40 to 85
Polyphase, yes/nonononononono
Switch Current, A1.131.131.131.131.131.13
Synchronous, yes/nonononononono
TopologyBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, Flyback
Vin Max, V121212121212
Vin Min, V1.51.51.51.51.51.5
Vin Min Startup, V1.51.51.51.51.51.5
Vout Max, V303030303030
Vout Min, V1.241.241.241.241.241.24
Vswitch Max, V303030303030

Packaging

 LT1949EMS8#PBFLT1949EMS8#TRPBFLT1949ES8#PBFLT1949ES8#TRPBFLT1949IS8#PBFLT1949IS8#TRPBF
PackageMS-8MS-8SO-8SO-8SO-8SO-8
Package CodeMS8MS8S8S8S8S8

Manufacturer's Classification

Switching Regulator

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