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Datasheet Linear Technology LTC7124

Manufacturer:Linear Technology
Series:LTC7124

17V, Dual 3.5A Synchronous Step-Down Regulator with Ultralow Quiescent Current

Datasheets

  • Download » Datasheet, PDF, 1.7 Mb, Revision: A
    LTC7124 -17V, Dual 3.5A Synchronous Step-Down Regulator with Ultralow Quiescent Current
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    LTC7124
    17V, Dual 3.5A Synchronous Step-Down
    Regulator with Ultralow Quiescent Current
    FEATURES DESCRIPTION Wide VIN Range: 3.1V to 17V
    nn Wide V
    OUT Range: 0.6V to 99% VIN
    nn Dual Step-Down Outputs: 3.5A Per Channel
    nn Integrated 80mΩ/40mΩ N-Channel MOSFETs
    Provide Up to 95% Efficiency
    nn No-Load I < 8μA with Both Channels Enabled;
    Q
    IQ < 5.5μA with Only One Channel Enabled
    nn Programmable Frequency (500kHz to 4MHz) with
    ±25% Frequency Synchronization Range
    nn Configurable for a 2-Phase Single Output at Up to 7A
    nn ±1.0% Output Voltage Accuracy
    nn Current Mode Operation for Excellent Line and Load
    Transient Response
    nn Internal or Programmable External Loop Compensation
    nn Available in a 3mm × 5mm QFN-24 Package The LTC®7124 is a dual channel, 3.5A per output, high
    efficiency monolithic step-down regulator capable of
    operating from input supplies up to 17V. The programmable switching frequency ranges from 500kHz to 4MHz
    with a ±25% external clock synchronization capability ...

Prices

Packaging

 LTC7124EUDD#PBFLTC7124EUDD#TRPBFLTC7124IUDD#PBFLTC7124IUDD#TRPBF
Package3x5 UDD-243x5 UDD-243x5 UDD-243x5 UDD-24
Package CodeUDDUDDUDDUDD

Parametrics

 LTC7124EUDD#PBFLTC7124EUDD#TRPBFLTC7124IUDD#PBFLTC7124IUDD#TRPBF
ArchitectureConstant Frequency Peak Current ModeConstant Frequency Peak Current ModeConstant Frequency Peak Current ModeConstant Frequency Peak Current Mode
Demo BoardsDC2329ADC2329ADC2329ADC2329A
Design ToolsLTpowerCAD ModelLTpowerCAD ModelLTpowerCAD ModelLTpowerCAD Model
Export Control, yes/nonononono
FeaturesBurst Mode, Resistor Set Frequency, External Synchronization, Power GoodBurst Mode, Resistor Set Frequency, External Synchronization, Power GoodBurst Mode, Resistor Set Frequency, External Synchronization, Power GoodBurst Mode, Resistor Set Frequency, External Synchronization, Power Good
Frequency, kHz4000400040004000
Frequency Adjust Range500kHz - 4MHz500kHz - 4MHz500kHz - 4MHz500kHz - 4MHz
Frequency Sync Range500kHz - 4MHz500kHz - 4MHz500kHz - 4MHz500kHz - 4MHz
Integrated Inductor, yes/nonononono
Ishutdown, µA0.10.10.10.1
Isupply, mA0.00550.00550.00550.0055
Monolithic, yes/noyesyesyesyes
Number of Outputs2222
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Output Current, A3.53.53.53.5
Output Current 2, A3.53.53.53.5
Polyphase, yes/noyesyesyesyes
Switch Current, A5555
Switch Current 2, A5555
Synchronous, yes/noyesyesyesyes
TopologyBuckBuckBuckBuck
Topology 1BuckBuckBuckBuck
Topology 2BuckBuckBuckBuck
Vin Max, V17171717
Vin Min, V3.13.13.13.1
Vout Max, V16.8316.8316.8316.83
Vout Max 2, V16.8316.8316.8316.83
Vout Maximum0.99Vin0.99Vin0.99Vin0.99Vin
Vout Min, V0.60.60.60.6
Vout Min 2, V0.60.60.60.6
Vref Accuracy Over Temp, %1111

Eco Plan

Manufacturer's Classification

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

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