LTM4601
LTM4601-1
Info: : PRODUCTION
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LTM4601
LTM4601-1

12A µModule (Power Module) Regulator with PLL, Output Tracking and Margining

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 10
1ku List Price Starting From $18.78
Features
  • Complete Switch Mode Power Supply
  • Wide Input Voltage Range: 4.5V to 20V
  • 12A DC Typical, 14A Peak Output Current
  • 0.6V to 5V Output Voltage
  • Output Voltage Tracking and Margining
  • Parallel Multiple μModule Regulators for Current Sharing
  • Differential Remote Sensing for Precision Regulation (LTM4601 Only)
  • PLL Frequency Synchronization
  • ±1.5% Regulation
  • Current Foldback Protection (Disabled at Start-Up)
  • SnPb or RoHS Compliant Finish
  • UltraFast Transient Response
  • Current Mode Control
  • Up to 95% Efficiency at 5VIN, 3.3VOUT
  • Programmable Soft-Start
  • Output Overvoltage Protection
  • Small Footprint, Low Profile (15mm × 15mm × 2.82mm) Surface Mount LGA and (15mm × 15mm × 3.42mm) BGA Packages
Additional Details
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The LTM4601 is a complete 12A step-down switch mode DC/DC power supply with on-board switching controller, MOSFETs, inductor and all support components. The μModule® regulator is housed in small surface mount 15mm × 15mm × 2.82mm LGA and 15mm × 15mm × 3.42mm BGA packages. Operating over an input voltage range of 4.5V to 20V, the LTM4601 supports an output voltage range of 0.6V to 5V as well as output voltage tracking and margining. The high efficiency design delivers 12A continuous current (14A peak). Only bulk input and output capacitors are needed to complete the design.

The low profile and light weight package easily mounts in unused space on the back side of PC boards for high density point of load regulation. The μModule regulator can be synchronized with an external clock for reducing undesirable frequency harmonics and allows PolyPhase® operation for high load currents.

A high switching frequency and adaptive on-time current mode architecture deliver a very fast transient response to line and load changes without sacrificing stability. An on-board differential remote sense amplifier can be used to accurately regulate an output voltage independent of load current. The on-board remote sense amplifier is not available in the LTM4601-1.


LTM4601 LTM4601A LTM4601HV LTM4601AHV
VIN Max 20V 20V 28V 28V
On-Board Remote Sense

LTM4601 Yes

LTM4601-1 No

LTM4601A Yes

LTM4601A-1 No

Yes Yes
Back Side Pads 118 135 (for stronger solder joint stability) 118 135 (for stronger solder joint stability)

Applications

  • Telecom and Networking Equipment
  • Servers
  • Industrial Equipment
  • Point of Load Regulation
Part Models 10
1ku List Price Starting From $18.78

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Documentation

Documentation

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Jul 21, 2021

- 21_0159

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Feb 28, 2020

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 7

reference details image

DC1043A-C

LTM4601 Demo Board | LTM4601(×4), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 40A

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DC1043A-C

LTM4601 Demo Board | LTM4601(×4), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 40A

LTM4601 Demo Board | LTM4601(×4), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 40A

Product Detail

Demonstration circuit DC1043A-C features four LTM4601EV high efficiency, high density switch mode step-down power modules in parallel (the LTM4601-1 can be substituted for the slave devices). The input voltage range is from 5.0V to 20V. The output voltage is programmable from 0.6V to 3.3V; refer to step down ratio curve in the LTM4601 datasheet. The rated load current is 40A, while de-rating is necessary for certain VIN, VOUT, and thermal conditions. Master module U1 provides differential remote sensing to accurately regulate output voltage independent of load current. Integrated input and output filters enable a simple PCB layout. Only bulk input and output capacitors are needed externally.

reference details image

DC1118A-C

LTM4601EV Demo Board | LTM4601(x4), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A, VOUT3 = 1.8V @ 12A, VOUT4 = 1.5V @ 12A

zoom

DC1118A-C

LTM4601EV Demo Board | LTM4601(x4), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A, VOUT3 = 1.8V @ 12A, VOUT4 = 1.5V @ 12A

LTM4601EV Demo Board | LTM4601(x4), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A, VOUT3 = 1.8V @ 12A, VOUT4 = 1.5V @ 12A

Product Detail

Demonstration circuit 1118A-C features four independent LTM4601EV high efficiency, high density switch mode step-down power modules. The input voltage range is from 5V to 20V. The output voltages are 3.3V, 2.5V,1.8V and 1.5V; refer to step down ratio curve in the LTM4601 datasheet. The rated load currents are 10A for the 3.3V output, and 12A for the 2.5V, 1.8V and 1.5V outputs, while derating is necessary for certain VIN and thermal conditions. The output of U2 is set to coincidentally track with the 3.3V output. Margining function is provided for the user who wants to stress their system by varying supply voltages during testing. Integrated input and output filters enable a simple PCB layout; only bulk input and output capacitors are needed.


 


reference details image

DC1118A-B

LTM4601EV Demo Board | LTM4601(x3), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A, VOUT3 = 1.8V @ 12A

zoom

DC1118A-B

LTM4601EV Demo Board | LTM4601(x3), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A, VOUT3 = 1.8V @ 12A

LTM4601EV Demo Board | LTM4601(x3), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A, VOUT3 = 1.8V @ 12A

Product Detail

Demonstration circuit 1118A-B features three independent LTM4601EV high efficiency, high density switch mode step-down power modules. The input voltage range is from 5V to 20V. The output voltages are 3.3V, 2.5V and 1.8V; refer to step down ratio curve in the LTM4601 datasheet. The rated load currents are 10A for the 3.3V output, 12A for the 2.5V output and 12A for the 1.8V output, while derating is necessary for certain VIN and thermal conditions. The output of U2 is set to coincidentally track with the 3.3V output. Margining function is provided for the user who wants to stress their system by varying supply voltages during testing. Integrated input and output filters enable a simple PCB layout; only bulk input and output capacitors are needed.

reference details image

DC1043A-B

LTM4601 Demo Board | LTM4601(×3), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A

zoom

DC1043A-B

LTM4601 Demo Board | LTM4601(×3), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A

LTM4601 Demo Board | LTM4601(×3), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A

Product Detail

Demonstration circuit DC1043A-B features three LTM4601EV high efficiency, high density switch mode step-down power modules in parallel (the LTM4601-1 can be substituted for the slave devices). The input voltage range is from 5.0V to 20V. The output voltage is programmable from 0.6V to 3.3V; refer to step down ratio curve in the LTM4601 datasheet. The rated load current is 30A, while de-rating is necessary for certain VIN, VOUT, and thermal conditions. Master module U1 provides differential remote sensing to accurately regulate output voltage independent of load current. Integrated input and output filters enable a simple PCB layout. Only bulk input and output capacitors are needed externally.

reference details image

DC1043A-A

LTM4601 Demo Board | LTM4601(×2), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 20A

zoom

DC1043A-A

LTM4601 Demo Board | LTM4601(×2), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 20A

LTM4601 Demo Board | LTM4601(×2), 5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 20A

Product Detail

Demonstration circuit DC1043A-A features the LTM4601EV and LTM4601-1EV, the high efficiency, high density switch mode step-down power modules. The input voltage range is from 5.0V to 20V. The output voltage is programmable from 0.6V to 3.3V; refer to step down ratio curve in the LTM4601 datasheet. The rated load current is 20A, while de-rating is necessary for certain VIN, VOUT, and thermal conditions. 24A load current can be achieved by applying forced airflow convection or attaching heatsinks. Master module U1 provides differential remote sensing to accurately regulate output voltage independent of load current. Integrated input and output filters enable a simple PCB layout. Only bulk input and output capacitors are needed externally. The DC1043A-A has on-board 180 degree interleaving clock generator.

reference details image

DC1118A-A

LTM4601EV Demo Board | LTM4601(x2), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A

zoom

DC1118A-A

LTM4601EV Demo Board | LTM4601(x2), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A

LTM4601EV Demo Board | LTM4601(x2), 5V ≤ VIN ≤ 20V, VOUT1 = 3.3V @ 10A, VOUT2 = 2.5V @ 12A

Product Detail

Demonstration circuit 1118A-A features two independent LTM4601EV high efficiency, high density switch mode step-down power modules. The input voltage range is from 5V to 20V. The output voltages are 3.3V and 2.5V; refer to step down ratio curve in the LTM4601 datasheet. The rated load currents are 10A for the 3.3V output and 12A for the 2.5V output, while derating is necessary for certain VIN and thermal conditions. The output of U2 is set to coincidentally track with the 3.3V output. Margining function is provided for the user who wants to stress their system by varying supply voltages during testing. Integrated input and output filters enable a simple PCB layout. Only bulk input and output capacitors are needed.


 


reference details image

DC1041A-A

LTM4601 Demo Board | 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 5V @ 12A

zoom

DC1041A-A

LTM4601 Demo Board | 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 5V @ 12A

LTM4601 Demo Board | 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 5V @ 12A

Product Detail

Demonstration circuit DC1041A-A features the LTM4601EV, a 12A high efficiency, high density switch mode step-down converter. The input voltage range is from 4.5V to 20V. The output voltage is jumper selectable for popular voltages from 0.6V to 5V. The PLLIN pin supports synchronizing the μModule® regulator to an external clock. The TRACK/SS pin allows the user to program output ramp-up and ramp-down rates which may coincidentally or ratiometrically track with another supply’s output if desired. Output voltage margining of ±5% from the nominal value is available via the margin control pins MARG0 and MARG1.

Tools & Simulations

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Reference Designs

Reference Designs 14

TR5-F40W Dev Kit

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terasic-tr5-f40w-stratix-v-gx-fpga-development-kit

terasic-tr5-f40w-stratix-v-gx-fpga-development-kit

Circuits from the lab

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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
View Detailed Reference Design external link
DE5-Net Dev Kit

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terasic-de5-net-stratix-v-board

terasic-de5-net-stratix-v-board

Circuits from the lab

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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
View Detailed Reference Design external link
DK-SI-4SGX230N Kit

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Altera Transceiver Signal Integrity Kit, Stratix IV GX Edition

Altera Transceiver Signal Integrity Kit, Stratix IV GX Edition

Circuits from the lab

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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
View Detailed Reference Design external link
DK-DEV-4SE530N Dev Kit

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altera-stratix-iv-e-fpga-development-kit

altera-stratix-iv-e-fpga-development-kit

Circuits from the lab

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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
View Detailed Reference Design external link
DK-VIDEO-4SGX230N Dev Kit

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altera-audio-video-development-kit-stratix-iv-gx-edition

altera-audio-video-development-kit-stratix-iv-gx-edition

Circuits from the lab

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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
View Detailed Reference Design external link
DK-DEV-4SGX230N Dev Kit

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altera-stratix-iv-gx-fpga-development-kit

altera-stratix-iv-gx-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link
TR4 Stratix IV Board

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terasic-tr4-stratix-iv-board

terasic-tr4-stratix-iv-board

Circuits from the lab

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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
View Detailed Reference Design external link
DE4 Dev Kit

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Terasic DE4 Development and Education Board

Terasic DE4 Development and Education Board

Circuits from the lab

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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
View Detailed Reference Design external link
DK-DEV-3C120N Dev Kit

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altera-cyclone-iii-fpga-development-kit

altera-cyclone-iii-fpga-development-kit

Circuits from the lab

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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
View Detailed Reference Design external link
DK-DEV-5AGTD7N Dev Kit

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Altera Arria V GT FPGA Development Kit

Altera Arria V GT FPGA Development Kit

Circuits from the lab

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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
View Detailed Reference Design external link
DK-EMB-3C120N Dev Kit

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altera-embedded-systems-development-kit-cyclone-iii-edition

altera-embedded-systems-development-kit-cyclone-iii-edition

Circuits from the lab

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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
View Detailed Reference Design external link
DK-100G-5SGXEA7N Dev Kit