LTM4622

RECOMMENDED FOR NEW DESIGNS

Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC μModule Regulator

Data Sheet (Rev. J) Product Selection Table
Part Models
5
1ku List Price
Starting From $8.42
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  • Reference Designs
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    Part Details

    • Complete Solution in <1cm2
    • Wide Input Voltage Range:3.6V to 20V
    • 3.3V Input Compatible with VIN Tied to INTVCC
    • 0.6V to 5.5V Output Voltage
    • Dual 2.5A (3A Peak) or Single 5A Output Current
    • ±1.5% Maximum Total Output Voltage Regulation Error Over Load, Line and Temperature
    • Current Mode Control, Fast Transient Response
    • External Frequency Synchronization
    • Multiphase Parallelable with Current Sharing
    • Output Voltage Tracking and Soft-Start Capability
    • Selectable Burst Mode® Operation
    • Overvoltage Input and Overtemperature Protection
    • Power Good Indicators
    • 6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm × 2.42mm BGA Packages
    LTM4622
    Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC μModule Regulator
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    Documentation

    Data Sheet 1

    Reliability Data 1

    User Guide 2

    Design Note 2

    Technical Articles 4

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    Software Resources

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    Hardware Ecosystem

    Parts Product Life Cycle Description
    Digital Power System Managers 1
    LTC2970
    LTC2970-1
    		Dual I2C Power Supply Monitor and Margining Controller
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    Tools & Simulations

    LTspice 2

    Models for the following parts are available in LTspice:

    • LTM4622
    • LTM4622A

    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
    schematic 2
    schematic 3
    schematic 4
    schematic 5
    schematic 6
    DC2249A

    OBSOLETE: LTM4622EV Demo Board | Ultrathin Dual Step-Down μModule Regulator, 3.6V ≤ VIN ≤ 20V, VOUT1/VOUT2 = 3.3V/1.2V @ 2.5A

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    Product Details

    This evaluation board is obsolete and no longer recommended. The replacement board is the DC2249B

    Demonstration Circuit 2249A features the LTM4622EV μModule® regulator, a tiny low profile high performance high efficiency dual step-down regulator. The LTM4622 has an operating input voltage range of 3.6V to 20V and is able to provide an output current of up to 2.5A for each channel. Each output’s voltage is programmable from 0.6V to 5.5V. The LTM4622 is a complete DC-DC point of load regulator in a low profile thermally enhanced 6.25mm × 6.25mm × 1.82mm LGA package requiring only a few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail sequencing.

    eval board
    schematic 7
    schematic 8
    schematic 9
    DC2249B

    LTM4622 Demo Board | Ultrathin Dual 2.5A Step-Down µModule Regulator

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    Product Details

    Demonstration circuit 2249B features the LTM4622 µModule® regulator, a tiny low profile high performance high efficiency dual step-down regulator. The LTM4622 has an operating input voltage range of 3.6V to 20V and is able to provide an output current of up to 2.5A for each channel. Each output’s voltage is programmable from 0.6V to 5.5V. The LTM4622 is a complete DC-DC point of load regulator in a low profile thermally enhanced 6.25mm × 6.25mm × 1.82mm LGA package requiring only a few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail sequencing. External clock synchronization is available through the SYNC/MODE pin. For high efficiency at low load currents the MODE pin jumper (JP3) selects the Burst Mode® option for operation in less noise sensitive applications. The LTM4622 data sheet must be read in conjunction with this demo manual for working on or modifying demo circuit 2249B. 

    DC2249A
    OBSOLETE: LTM4622EV Demo Board | Ultrathin Dual Step-Down μModule Regulator, 3.6V ≤ VIN ≤ 20V, VOUT1/VOUT2 = 3.3V/1.2V @ 2.5A
    DC2249B
    LTM4622 Demo Board | Ultrathin Dual 2.5A Step-Down µModule Regulator

    Reference Designs

    Stratix 10 GX PCIE FPGA Development Kit
    Stratix 10 GX PCIE FPGA Development Kit
    Stratix 10 GX PCIE FPGA Development Kit Block Diagram
    Stratix 10 GX PCIE FPGA Development Kit (Recommended Simplified Power Tree: 12Vin to required I/O voltages)
    Stratix 10 GX PCIE FPGA Development Kit (Actual Power Tree representative of components used on board)
    Intel Stratix 10 FPGA PCIe Development Kit Circuits from the lab

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    Features and Benefits

    • Analog Devices has worked closely with Intel PSG to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
    • The validated power solutions include uModules power products that address time and space constraints while delivering high efficiency, reliability, and low noise.
    • The actual power tree represents the best solution at time of design.
    • A recommended power tree has also been included to present the ideal solution at time of Stratix 10 GX PCIe development kit release. An updated alternate version of the power tree represents the latest solutions available from Analog Devices. For many applications, an intermediate rail is not ideal, so recommendations an alternate power tree that allow for direct power conversion from 12V input is provided below.
    Figure 1. CN0511 Functional Block Diagram
    Figure 1. CN0511 Functional Block Diagram
    EVAL-CN0511-RPIZ Evaluation Board
    EVAL-CN0511-RPIZ Evaluation Board - Top View
    EVAL-CN0511-RPIZ Evaluation Board - Bottom View
    CN0511 Circuits from the lab

    DC to 5.5 GHz Signal Generator with +/-0.5 dB Calibrated Output Power

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    Features and Benefits

    • DC to 5.5 GHz Single Tone Generator
    • +/- 0.5 dB  Wideband Amplitude Calibration from 0 dBm to -40 dBm
    • 48-Bit Frequency Tuning Resolution (~43 uHz)
    • Onboard VCXO for Quick Bring Up
    • Compatible with Raspberry Pi 3B+, 4, Zero W, Zero 2W
    Monolithic Power Tree Solution for the ZU7 FPGA
    Monolithic Power Tree Solution for the ZU7 FPGA
    uModule Power Tree for the ZU7 FPGA 
    ZCU104 Circuits from the lab

    Zynq UltraScale+ MPSoC ZCU104 Paper Reference Design

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    Features and Benefits

    • The ZCU104 Evaluation Kit enables designers to jumpstart designs for embedded vision applications such as surveillance, Advanced Driver Assisted Systems (ADAS), machine vision, Augmented Reality (AR), drones and medical imaging.

    • The ADI Power delivery solutions support multiple reference designs using DC/DC module and monolithic solutions. ADI offers several options for powering the Zu7 FPGA.

    • Our module-based solutions combine a small footprint, while maximizing efficiency and tight regulation. Our monolithic based solutions support a lower cost optimized power delivery solution for mass production.

    • ADI provides supporting documentation to enable you to validate the power solution for your application seamlessly.

    • For a complete list power designs and use cases, please contact your local FAE.

    • Please refer to the circuit descriptions below that best support your design.
    Intel Stratix 10 FPGA PCIe Development Kit
    CN0511
    DC to 5.5 GHz Signal Generator with +/-0.5 dB Calibrated Output Power
    ZCU104
    Zynq UltraScale+ MPSoC ZCU104 Paper Reference Design

    Latest Discussions

    15 Weeks Ago
    RE: LTM4622
    33 Weeks Ago
    RE: LTM4622 start-up not monotonic
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