LTC7813

RECOMMENDED FOR NEW DESIGNS

Low IQ, 60V Synchronous Boost+Buck Controller

Data Sheet Product Selection Table
Part Models
8
1ku List Price
Starting From $5.75
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  • Documentation
  • Software Resources
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  • Tools & Simulations
  • Evaluation Kits
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    Part Details

    • Synchronous Boost and Buck Controllers
    • When Cascaded, Allows VIN Above, Below, or Equal to Regulated VOUT of Up to 60V
    • Wide Bias Input Voltage Range: 4.5V to 60V
    • Output Remains in Regulation Through Input Dips (e.g. Cold Crank) Down to 2.2V
    • Adjustable Gate Drive Level 5V to 10V (OPTI-DRIVE)
    • Low EMI with Low Input and Output Ripple
    • Fast Output Transient Response
    • No External Bootstrap Diodes Required
    • High Light Load Efficiency
    • Low Operating IQ: 29μA (One Channel On)
    • Low Operating IQ: 34μA (Both Channels On)
    • RSENSE or Lossless DCR Current Sensing
    • Buck Output Voltage Range: 0.8V ≤ VOUT ≤ 60V
    • Boost Output Voltage Up 60V
    • Phase-Lockable Frequency (75kHz to 850kHz)
    • Small 32-Pin 5mm × 5mm QFN Package
    LTC7813
    Low IQ, 60V Synchronous Boost+Buck Controller
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    Documentation

    Data Sheet 1

    Reliability Data 1

    User Guide 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
    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:

    • LTC7813

    LTpowerCAD 2

    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.

    LTpowerCAD

    LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

    Evaluation Kits

    eval board
    schematic 1
    DC2435A-B

    LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; VOUT1 (Quasi Regulated) = 19V-28.6V @ 5A

    Buy Now View Details

    Product Details

    Demonstration circuit DC2435A is a step-up/down supply featuring the LTC7813EUH. The LTC7813 is a high performance dual output (buck and boost) synchronous DC/DC switching regulator controller. The board has three different configurations:


    • DC2435A-A: Regulated output voltage of 24 Volt
    • DC2435A-B: Narrowed output voltage between 20V and 28V
    • DC2435A-C: Dual output voltages of 24V (Boost VBUS channel) and 5V (Buck VOUT1 channel)

    The circuit enables a drop-in layout where the total circuit area is only 1½" by 1½". The LTC7813EUH is in a 32-lead exposed pad QFN package.


     

    eval board
    schematic 2
    schematic 3
    schematic 4
    schematic 5
    DC2435A-C

    LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; Dual Output, VBoost = 24V @ 3A, Vbuck = 5V @ 8A

    Buy Now View Details

    Product Details

    Demonstration circuit DC2435A is a step-up/down supply featuring the LTC7813EUH. The LTC7813 is a high performance dual output (buck and boost) synchronous DC/DC switching regulator controller. The board has three different configurations:


    • DC2435A-A: Regulated output voltage of 24 Volt
    • DC2435A-B: Narrowed output voltage between 20V and 28V
    • DC2435A-C: Dual output voltages of 24V (Boost VBUS channel) and 5V (Buck VOUT1 channel)

    The circuit enables a drop-in layout where the total circuit area is only 1½" by 1½". The LTC7813EUH is in a 32-lead exposed pad QFN package.

    eval board
    schematic 6
    DC2435A-A

    LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; VOUT1 = 24V @ 5A

    Buy Now View Details

    Product Details

    Demonstration circuit DC2435A is a step-up/down supply featuring the LTC7813EUH. The LTC7813 is a high performance dual output (buck and boost) synchronous DC/DC switching regulator controller. The board has three different configurations:


    • DC2435A-A: Regulated output voltage of 24 Volt
    • DC2435A-B: Narrowed output voltage between 20V and 28V
    • DC2435A-C: Dual output voltages of 24V (Boost VBUS channel) and 5V (Buck VOUT1 channel)

    The circuit enables a drop-in layout where the total circuit area is only 1½" by 1½". The LTC7813EUH is in a 32-lead exposed pad QFN package.


     
    DC2435A-B
    LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; VOUT1 (Quasi Regulated) = 19V-28.6V @ 5A
    DC2435A-C
    LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; Dual Output, VBoost = 24V @ 3A, Vbuck = 5V @ 8A
    DC2435A-A
    LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; VOUT1 = 24V @ 5A

    Latest Discussions

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