LTC3773

PRODUCTION

Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking

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Part Models
4
1ku List Price
Starting From $4.72
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    Part Details

    • Current Mode Controller with On-board MOSFET Drivers
    • Programmable Power Up/Down Tracking
    • Wide VIN Range: 3.3V to 36V (VCC = 5V)
    • ±1% 0.6V VFB Accuracy Over Temperature
    • Power Good Output Voltage Monitor
    • Phase-Lockable or Adjustable Frequency: 160kHz to 700kHz
    • OPTI-LOOP® Compensation Minimizes COUT
    • Current Foldback and Overvoltage Protection
    • Selectable Continuous, Discontinuous or Burst Mode® Operation at Light Load
    • Programmable Phase Operation
    • Available in 5mm × 7mm QFN and 36-Lead
    • SSOP Packages
    LTC3773
    Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking
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    Documentation

    Data Sheet 1

    Reliability Data 1

    User Guide 2

    Design Note 1

    Data Sheet

    This is the most up-to-date revision of the Data Sheet.

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    Software Resources

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    Hardware Ecosystem

    Parts Product Life Cycle Description
    Digital Power System Managers 1
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    		RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
    Dual-Supply Monitors 1
    LTC2960
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    Silicon Oscillators 1
    LTC6909
    		PRODUCTION 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
    Surge Stopper, Overvoltage, and Overcurrent Protection 1
    LT4363
    		RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
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    Tools & Simulations

    LTspice 1

    Models for the following parts are available in LTspice:

    • LTC3773
    LTspice

    LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

    Evaluation Kits

    eval board
    schematic 1
    DC913A

    LTC3773EUHF Demo Board | (QFN) 3-Phase, 4.5V ≤ VIN ≤ 13.5V, VOUT1 = 2.5V @ 15A, VOUT2 = 1.8V @ 15A, VOUT3 = 1.2V @ 15A

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    Product Details

    Demonstration circuit 913 is a high efficiency and high density supply featuring the 3-output, 3-phase synchronous buck regulator LTC3773 in the 5x7 QFN-38 package. The input voltage range of the demo board is designed for 4.5V to 13.5V, though the LTC3773 controller can take up to 36VMAX VIN. The outputs of this board are 2.5V @ 15A, 1.8V @ 15A and 1.2V @ 15A.

    eval board
    schematic 2
    DC908A

    LTC3773EG Demo Board | (SSOP) 3-Phase, 7V ≤ VIN ≤ 24V, VOUT1 = 3.3V @ 15A, VOUT2 = 2.5V @ 15A, VOUT3 = 1.8V @ 15A

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    Product Details

    Demonstration circuit 908 is a high efficiency and high density supply featuring the 3-output, 3-phase synchronous buck regulator LTC3773 in the SSOP-36 package. The input voltage range of the demo board is designed for 7V to 24V, though the LTC3773 controller can take up to 36VMAX VIN. The outputs of this board are 3.3V @ 15A, 2.5V @ 15A and 1.8V @ 15A.
    DC913A
    LTC3773EUHF Demo Board | (QFN) 3-Phase, 4.5V ≤ VIN ≤ 13.5V, VOUT1 = 2.5V @ 15A, VOUT2 = 1.8V @ 15A, VOUT3 = 1.2V @ 15A
    DC908A
    LTC3773EG Demo Board | (SSOP) 3-Phase, 7V ≤ VIN ≤ 24V, VOUT1 = 3.3V @ 15A, VOUT2 = 2.5V @ 15A, VOUT3 = 1.8V @ 15A

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