LTM4627

PRODUCTION

15A DC/DC μModule (Power Module) Regulator

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Overview

  • Complete 15A Switch Mode Power Supply
  • Wide Input Voltage Range: 4.5V to 20V
  • 0.6V to 5V Output Range
  • ±1.5% Total DC Output Error
  • Differential Remote Sense Amplifier for Precision Regulation
  • Current Mode Control/Fast Transient Response
  • Frequency Synchronization
  • Parallel Current Sharing (Up to 60A)
  • Selectable Pulse-Skipping or Burst Mode® Operation
  • Soft-Start/Voltage Tracking
  • Up to 93% Efficiency (12VIN, 3.3VOUT)
  • Overcurrent Foldback Protection
  • Output Overvoltage Protection
  • Small Surface Mount Footprint, Low Profile 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA Packages
LTM4627
15A DC/DC μModule (Power Module) Regulator
1.2V, 15A DC/DC μModule® Regulator Efficiency vs Load Current Product Package 1 Product Package 2
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Documentation

Data Sheet 1

User Guide 3

Technical Articles 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
Circuit Monitors 1
LTC2960
RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Hot Swap Controllers 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
Oscillators 1
LTC6908
Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation
Power System Management (PSM) & Sequencers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
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Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

  • LTM4627

LTpowerCAD 2

Design tools for the following parts are available in LTpowerCAD:

  • LTM4627
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
DC1668B-C

LTM4627EV Demo Board | LTM4627(×4), Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 50A

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Product Details

Demonstration circuit 1668B-C is a PolyPhase® power supply featuring four LTM4627 high efficiency synchronous buck μModule® regulators. The DC1668B-C input voltage range is between 4.5V to 20V with a jumper programmable output voltage from 0.6V to 3.3V. The demo circuit can deliver up to 50A of load with excellent current-sharing. Current derating may be necessary under certain operating conditions.

eval board
schematic 2
DC1668B-C

LTM4627EV Demo Board | LTM4627(×4), Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 50A

Buy Now View Details

Product Details

Demonstration circuit 1668B-C is a PolyPhase® power supply featuring four LTM4627 high efficiency synchronous buck μModule® regulators. The DC1668B-C input voltage range is between 4.5V to 20V with a jumper programmable output voltage from 0.6V to 3.3V. The demo circuit can deliver up to 50A of load with excellent current-sharing. Current derating may be necessary under certain operating conditions.

eval board
schematic 3
DC1668B-A

LTM4627EV Demo Board | Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A

Buy Now View Details

Product Details

Demonstration circuit 1668B-A is a PolyPhase® power supply featuring two LTM4627 high efficiency synchronous buck μModule® regulators. The DC1668B-A input voltage range is between 4.5V to 20V with a jumper programmable output voltage from 0.6V to 3.3V. The demo circuit can deliver up to 30A of load with excellent current-sharing. Current derating may be necessary under certain operating conditions.

eval board
schematic 4
DC1668B-A

LTM4627EV Demo Board | Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A

Buy Now View Details

Product Details

Demonstration circuit 1668B-A is a PolyPhase® power supply featuring two LTM4627 high efficiency synchronous buck μModule® regulators. The DC1668B-A input voltage range is between 4.5V to 20V with a jumper programmable output voltage from 0.6V to 3.3V. The demo circuit can deliver up to 30A of load with excellent current-sharing. Current derating may be necessary under certain operating conditions.

eval board
schematic 5
schematic 6
schematic 7
schematic 8
DC1669B

LTM4627EV 15A Step‐Down μModule Regulator

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Product Details

Demonstration circuit 1669 features the LTM4627EV μModule regulator, a high‐performance high efficiency step‐down regulator. The LTM4627EV has an operating input voltage range of 4.5V to 20V and is able to provide an output current of up to 15A. The output voltage is programmable from 0.6V to 5V and can be remotely sensed with the internal optional differential remote sensing amplifier. The LTM4627EV is a complete DC‐DC point of load regulator in a thermally enhanced 15mm x 15mm x 4.32mm LGA package requiring only a few input and output capacitors. This regulator is internally compensated and employs constant frequency current mode architecture, enabling a fast transient response and stable control loop over a wide range of output capacitance. It supports frequency synchronization and Burst Mode® operation for increased light load efficiency. Output voltage tracking is also available through the TRACK/SS pin for supply rail sequencing. The LTM4627 datasheet must be read in conjunction with this demo manual for working on or modifying demo circuit 1669.

 

eval board
schematic 9
schematic 10
schematic 11
schematic 12
DC1669B

LTM4627EV 15A Step‐Down μModule Regulator

Buy Now View Details

Product Details

Demonstration circuit 1669 features the LTM4627EV μModule regulator, a high‐performance high efficiency step‐down regulator. The LTM4627EV has an operating input voltage range of 4.5V to 20V and is able to provide an output current of up to 15A. The output voltage is programmable from 0.6V to 5V and can be remotely sensed with the internal optional differential remote sensing amplifier. The LTM4627EV is a complete DC‐DC point of load regulator in a thermally enhanced 15mm x 15mm x 4.32mm LGA package requiring only a few input and output capacitors. This regulator is internally compensated and employs constant frequency current mode architecture, enabling a fast transient response and stable control loop over a wide range of output capacitance. It supports frequency synchronization and Burst Mode® operation for increased light load efficiency. Output voltage tracking is also available through the TRACK/SS pin for supply rail sequencing. The LTM4627 datasheet must be read in conjunction with this demo manual for working on or modifying demo circuit 1669.

 
DC1668B-C
LTM4627EV Demo Board | LTM4627(×4), Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 50A
DC1668B-A - Schematic
DC1668B-C
LTM4627EV Demo Board | LTM4627(×4), Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 50A
DC1668B-A - Schematic
DC1668B-A
LTM4627EV Demo Board | Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A
DC1668B-A - Schematic
DC1668B-A
LTM4627EV Demo Board | Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A
DC1668B-A - Schematic
DC1669B
LTM4627EV 15A Step‐Down μModule Regulator
DC1669B Demo Board DC1669B Demo Board DC1669B Demo Board DC1669B Demo Board
DC1669B
LTM4627EV 15A Step‐Down μModule Regulator
DC1669B Demo Board DC1669B Demo Board DC1669B Demo Board DC1669B Demo Board

Reference Designs

DK-100G-5SGXEA7N Dev Kit
DK-100G-5SGXEA7N Dev Kit
DK-100G-5SGXEA7N Parts List
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Power Tree
Altera 100G Development Kit, Stratix V Edition Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
HTG-V7-PCIE-FF Block Diagram
HTG-V7-PCIE-FF Block Diagram
HTG-712 Networking Card with Samtec Firefly
HTG-712 Power Tree
Xilinx Virtex-7 High-End Networking Card with Samtec FireFly Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Virtex™ -7 V2000T PCI Express Dev Board
Virtex™ -7 V2000T PCI Express Dev Board
HTG-V7-PCIE Block Diagram
HTG-V7-PCIE Power Tree
Xilinx Virtex-7 V2000T PCI Express Development Board Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Virtex™ -7 High-End Networking Card With Dual CXP Ports
Virtex™ -7 High-End Networking Card With Dual CXP Ports
HTG-V7-PCIE-CXP Block Diagram
HTG-V7-PCIE-CXP Power Tree
Xilinx Virtex™ -7 High-End Networking Card With Dual CXP Ports Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
HTG-K7-PCIE Dev Board
HTG-K7-PCIE Dev Board
HTG-K7-PCIE Reference Design
HTG-K7-PCIE Power Tree
Xilinx Kintex®-7 PCI Express Development Board Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Virtex-7™ 10G/40G/100G Optical Interface FPGA Platform
Virtex-7™ 10G/40G/100G Optical Interface FPGA Platform
HTG-V7-OPTIC Block Diagram
HTG-V7-OPTIC Power Tree
Xilinx Virtex-7 10G/40G/100G Optical Interface FPGA Platform Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Virtex 7 PCI Express Gen 3 /100Gig Networking Card - Top View
Virtex 7 PCI Express Gen 3 /100Gig Networking Card - Top View
Virtex 7 PCI Express Gen 3 /100Gig Networking Card - Bottom View
HTG-V7-G3PCIE Block Diagram
HTG-V7-G3PCIE Power Tree
Xilinx Virtex 7 PCI Express Gen 3/100Gig Networking Card Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
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

View Detailed Reference Design

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.
Altera 100G Development Kit, Stratix V Edition
DK-100G-5SGXEA7N Dev Kit
DK-100G-5SGXEA7N Parts List
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Power Tree
Xilinx Virtex-7 High-End Networking Card with Samtec FireFly
HTG-V7-PCIE-FF Block Diagram
HTG-712 Networking Card with Samtec Firefly
HTG-712 Power Tree
Xilinx Virtex-7 V2000T PCI Express Development Board
Virtex™ -7 V2000T PCI Express Dev Board
HTG-V7-PCIE Block Diagram
HTG-V7-PCIE Power Tree
Xilinx Virtex™ -7 High-End Networking Card With Dual CXP Ports
Virtex™ -7 High-End Networking Card With Dual CXP Ports
HTG-V7-PCIE-CXP Block Diagram
HTG-V7-PCIE-CXP Power Tree
Xilinx Kintex®-7 PCI Express Development Board
HTG-K7-PCIE Dev Board
HTG-K7-PCIE Reference Design
HTG-K7-PCIE Power Tree
Xilinx Virtex-7 10G/40G/100G Optical Interface FPGA Platform
Virtex-7™ 10G/40G/100G Optical Interface FPGA Platform
HTG-V7-OPTIC Block Diagram
HTG-V7-OPTIC Power Tree
Xilinx Virtex 7 PCI Express Gen 3/100Gig Networking Card
Virtex 7 PCI Express Gen 3 /100Gig Networking Card - Top View
Virtex 7 PCI Express Gen 3 /100Gig Networking Card - Bottom View
HTG-V7-G3PCIE Block Diagram
HTG-V7-G3PCIE Power Tree
Intel Stratix 10 FPGA PCIe 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)

Latest Discussions

26 Weeks Ago
LTM4627 Output not behaving correctly
2 Years Ago
LTM4627 Thermal Shutdown
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wrong output
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