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Datasheet Linear Technology LT1959

Manufacturer:Linear Technology
Series:LT1959

4.5A, 500kHz Step-Down Switching Regulator

Datasheets

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    LT1959 - 4.5A, 500kHz Step-Down Switching Regulator
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    LT1959
    4.5A, 500kHz Step-Down
    Switching Regulator
    U FEATURES










    ■ DESCRIPTIO The LT ®1959 is a 500kHz monolithic buck mode switching
    regulator functionally identical to the LT1506 but optimized
    for lower output voltage applications. It will operate down
    to 1.21V output compared to 2.42V for the LT1506. A 4.5A
    switch is included on the die along with all the necessary
    oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast
    transient response and good loop stability. Operates with Input as Low as 4V
    Output Range Down to 1.21V
    Constant 500kHz Switching Frequency ...

Eco Plan

 LT1959CR#PBFLT1959CR#TRPBFLT1959CS8#PBFLT1959CS8#TRPBFLT1959IR#PBFLT1959IR#TRPBFLT1959IS8#PBFLT1959IS8#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Parametrics

 LT1959CR#PBFLT1959CR#TRPBFLT1959CS8#PBFLT1959CS8#TRPBFLT1959IR#PBFLT1959IR#TRPBFLT1959IS8#PBFLT1959IS8#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 Mode
Demo BoardsDC355A,DC356ADC355A,DC356ADC355A,DC356ADC355A,DC356ADC355A,DC356ADC355A,DC356ADC355A,DC356ADC355A,DC356A
Design ToolsLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice Model
Export Control, yes/nonononononononono
FeaturesExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal Synchronization
Frequency, kHz500500500500500500500500
Frequency Sync Range580kHz - 1MHz580kHz - 1MHz580kHz - 1MHz580kHz - 1MHz580kHz - 1MHz580kHz - 1MHz580kHz - 1MHz580kHz - 1MHz
Integrated Inductor, yes/nonononononononono
Ishutdown, µA1515151515151515
Isupply, mA3.83.83.83.83.83.83.83.8
Max Phases11111111
Monolithic, yes/noyesyesyesyesyesyesyesyes
Number of Outputs11111111
Operating Temperature Range, °C0 to 700 to 700 to 700 to 70-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A3.63.63.63.63.63.63.63.6
Polyphase, yes/nonononononononono
Switch Current, A66666666
Synchronous, yes/nonononononononono
TopologyBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V1515151515151515
Vin Min, V44444444
Vout Max, V12.912.912.912.912.912.912.912.9
Vout Maximum.86VIN.86VIN.86VIN.86VIN.86VIN.86VIN.86VIN.86VIN
Vout Min, V1.211.211.211.211.211.211.211.21

Packaging

 LT1959CR#PBFLT1959CR#TRPBFLT1959CS8#PBFLT1959CS8#TRPBFLT1959IR#PBFLT1959IR#TRPBFLT1959IS8#PBFLT1959IS8#TRPBF
PackageDDPAK-7DDPAK-7SO-8SO-8DDPAK-7DDPAK-7SO-8SO-8
Package CodeRRS8S8RRS8S8

Manufacturer's Classification

Switching Regulator

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