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Datasheet Linear Technology LTC3835

ManufacturerLinear Technology
SeriesLTC3835

Low IQ Synchronous Step-Down Controller

Datasheets

  • Download » Datasheet, PDF, 423 Kb, Revision: E
    LTC3835 - Low IQ Synchronous Step-Down Controller
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    LTC3835
    Low IQ Synchronous
    Step-Down Controller
    DESCRIPTION FEATURES n n n n n n n n n n n n n n n n n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 10V
    Low Operating Quiescent Current: 80µA
    OPTI-LOOP® Compensation Minimizes COUT
    ±1% Output Voltage Accuracy
    Wide VIN Range: 4V to 36V Operation
    Phase-Lockable Fixed Frequency 140kHz to 650kHz
    Dual N-Channel MOSFET Synchronous Drive
    Very Low Dropout Operation: 99% Duty Cycle
    Adjustable Output Voltage Soft-Start or Tracking
    Output Current Foldback Limiting
    Power Good Output Voltage Monitor
    Clock Output for PolyPhase® Applications
    Output Overvoltage Protection
    Low Shutdown IQ: 10µA
    Internal LDO Powers Gate Drive from VIN or VOUT
    Selectable Continuous, Pulse-Skipping or
    Burst Mode® Operation at Light Loads
    Small 20-Lead TSSOP or 4mm × 5mm QFN Package n n n The 80µA no-load quiescent current extends operating
    life in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over
    a wide range of output capacitance and ESR values. The ...

Prices

Packaging

LTC3835EFE#PBFLTC3835EFE#TRPBFLTC3835EUFD#PBFLTC3835EUFD#TRPBFLTC3835IFE#PBFLTC3835IFE#TRPBFLTC3835IUFD#PBFLTC3835IUFD#TRPBF
PackageTSSOP-20TSSOP-204x5 QFN-204x5 QFN-20TSSOP-20TSSOP-204x5 QFN-204x5 QFN-20
Package CodeFEFEUFDUFDFEFEUFDUFD

Parametrics

LTC3835EFE#PBFLTC3835EFE#TRPBFLTC3835EUFD#PBFLTC3835EUFD#TRPBFLTC3835IFE#PBFLTC3835IFE#TRPBFLTC3835IUFD#PBFLTC3835IUFD#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 BoardsDC967BDC967BDC967BDC967BDC967BDC967BDC967BDC967B
Design ToolsLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice File
Export Control, yes/nonononononononono
FeaturesBurst Mode, Tracking, External Synchronization, PLL, Power GoodBurst Mode, Tracking, External Synchronization, PLL, Power GoodBurst Mode, Tracking, External Synchronization, PLL, Power GoodBurst Mode, Tracking, External Synchronization, PLL, Power GoodBurst Mode, Tracking, External Synchronization, PLL, Power GoodBurst Mode, Tracking, External Synchronization, PLL, Power GoodBurst Mode, Tracking, External Synchronization, PLL, Power GoodBurst Mode, Tracking, External Synchronization, PLL, Power Good
Frequency, kHz650650650650650650650650
Frequency Sync Range140kHz - 650kHz140kHz - 650kHz140kHz - 650kHz140kHz - 650kHz140kHz - 650kHz140kHz - 650kHz140kHz - 650kHz140kHz - 650kHz
Integrated Inductor, yes/nonononononononono
Ishutdown, µA1010101010101010
Isupply, mA0.080.080.080.080.080.080.080.08
Max Phases11111111
Monolithic, yes/nonononononononono
Number of Outputs11111111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A2020202020202020
Polyphase, yes/nonononononononono
Sense ResistorRsenseRsenseRsenseRsenseRsenseRsenseRsenseRsense
Switch Current, A2020202020202020
Synchronous, yes/noyesyesyesyesyesyesyesyes
TopologyBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V3636363636363636
Vin Min, V44444444
Vout Max, V1010101010101010
Vout Maximum10V10V10V10V10V10V10V10V
Vout Min, V0.80.80.80.80.80.80.80.8
Vref Accuracy Over Temp, %11111111

Eco Plan

Moldel Line

Series: LTC3835 (8)

Manufacturer's Classification

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

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