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Datasheet Linear Technology LTC3850IGN-2#PBF

Manufacturer:Linear Technology
Part Number:LTC3850IGN-2#PBF

Dual, 2-Phase Synchronous Step-Down Switching Controller


  • Download » Datasheet, PDF, 417 Kb, Revision: F
    LTC3850-2 - Dual, 2-Phase Synchronous Step-Down Switching Controller
    Docket ↓
    Dual, 2-Phase
    Synchronous Step-Down
    Switching Controller
    DESCRIPTION FEATURES n The LTC®3850-2 is a high performance dual synchronous
    step-down switching regulator controller that drives all
    N-channel power MOSFET stages. A constant-frequency
    current mode architecture allows a phase-lockable
    frequency of up to 780kHz. Power loss and supply noise
    are minimized by operating the two controller output
    stages out of phase. Dual, 180° Phased Controllers Reduce Required
    Input Capacitance and Power Supply Induced Noise
    High Efficiency: Up to 95%
    RSENSE or DCR Current Sensing
    ±1% 0.8V Output Voltage Accuracy
    Phase-Lockable Fixed Frequency 250kHz to 780kHz
    Supports Pre-Biased Output
    Dual N-Channel MOSFET Synchronous Drive
    Wide VIN Range: 4V to 30V Operation
    Adjustable Soft-Start Current Ramping or Tracking
    Foldback Output Current Limiting
    Output Overvoltage Protection
    Power Good Output Voltage Monitor ...



Package CodeGN


ArchitectureConstant Frequency Current Mode
Design ToolsLTspice Model,LTpowerCAD Model
Export Controlno yes/no
FeaturesPolyPhase, DCR Current Sense, Selectable Switching Frequency, External Synchronization, PLL, Tracking, Power Good
Frequency500 kHz
Frequency Sync Range250kHz - 780kHz
Integrated Inductorno yes/no
Ishutdown30 µA
Isupply0.85 mA
Max Phases2
Monolithicno yes/no
Number of Outputs2
Operating Temperature Range-40 to 85 °C
Output Current25 A
Polyphaseyes yes/no
Sense ResistorRsense, DCR
Switch Current25 A
Synchronousyes yes/no
Topology 2Buck
Vin Max30 V
Vin Min4 V
Vout Max6 V
Vout Maximum6V
Vout Min0.8 V
Vref Accuracy Over Temp1 %

Eco Plan


Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers

Other Names: LTC3850IGN-2PBF, LTC3850IGN-2 PBF, LTC3850IGN2#PBF, LTC3850IGN 2#PBF

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