LTM4601
LTM4601-1

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

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Overview

Features and Benefits
Product Details

Features and Benefits

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 5V_IN, 3.3V_OUT
Programmable Soft-Start
Output Overvoltage Protection
Small Footprint, Low Profile (15mm × 15mm × 2.82mm) Surface Mount LGA and (15mm × 15mm × 3.42mm) BGA Packages

Product Details

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
V_IN 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

Product Categories

Power Management
- µModule Buck Regulators

Comparable Parts Click to see all in Parametric Search

Product Lifecycle Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (7)

DC1118A-C

LTM4601EV Demo Board | LTM4601(x4), 5V ≤ V_IN ≤ 20V, V_OUT1 = 3.3V @ 10A, V_OUT2 = 2.5V @ 12A, V_OUT3 = 1.8V @ 12A, V_OUT4 = 1.5V @ 12A

DC1118A-B

LTM4601EV Demo Board | LTM4601(x3), 5V ≤ V_IN ≤ 20V, V_OUT1 = 3.3V @ 10A, V_OUT2 = 2.5V @ 12A, V_OUT3 = 1.8V @ 12A

DC1118A-A

LTM4601EV Demo Board | LTM4601(x2), 5V ≤ V_IN ≤ 20V, V_OUT1 = 3.3V @ 10A, V_OUT2 = 2.5V @ 12A

DC1043A-B

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

DC1041A-A

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

DC1043A-A

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

DC1043A-C

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

DC1118A-C

View Detailed Evaluation Kit Information

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.

Resources

DC1118A-B

View Detailed Evaluation Kit Information

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 V_IN 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.

Resources

DC1118A-A

View Detailed Evaluation Kit Information

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 V_IN 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.

Resources

DC1043A-B

View Detailed Evaluation Kit Information

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 V_IN, V_OUT, 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.

Resources

DC1041A-A

View Detailed Evaluation Kit Information

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.

Resources

DC1043A-A

View Detailed Evaluation Kit Information

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 V_IN, V_OUT, 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.

Resources

DC1043A-C

View Detailed Evaluation Kit Information

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 V_IN, V_OUT, 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.

Resources

Documentation & Resources

Data Sheets

LTM4601/LTM4601-1: 12A µModule (Power Module) Regulator with PLL, Output Tracking and Margining Data Sheet
5/2/2014

PDF

941K

Reliability Data

R504 Reliability Data
3/26/2018

PDF

347 K

Application Notes

AN119A - Powering Complex FPGA-Based Systems Using Highly Integrated DC/DC uModule Regulator Systems
5/6/2015

PDF

499K
AN110 - LTM4601 DC/DC uModule Thermal Performance
2/15/2011

PDF

188K
AN119B - Powering Complex FPGA-Based Systems Using Highly Integrated DC/DC uModule Regulator Systems
12/3/2010

PDF

283K

User Guides

DC1041A-A Demo Manual
5/25/2011

PDF

2M
DC1118A-B - Demo Manual
2/17/2011

PDF

440K
DC1118A-C - Demo Manual
2/17/2011

PDF

459K
DC1118A-A - Demo Manual
2/17/2011

PDF

332K
DC1043A - Demo Manual
9/24/2009

PDF

1M

Design Notes

DN411 - Simple and Compact 4-Output Point-of-Load DC/DC uModule System
2/15/2011

PDF

688K

Product Selector Card

SnPb (Tin-Lead) BGA Packages μModule Power Products
7/13/2017

PDF

1M
μModule Power Products
4/4/2017

PDF

10M

Informational

μModule Design and Manufacturing Resources
1/30/2018

Technical Articles

Easy High Density Power: 48A Surface Mount DC/DC Power Supply Uses Four Parallel 12A μModule Regulators
1/1/2008 LT Journal

Tools & Simulations

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.

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.

LTspice downloads and documentation

LTspice Simulations

LTM4601 Demo Circuit - 2-Phase Parallel 12A DC/DC µModules with PLL, Output Tracking & Margining (4.5-20V to .9V @ 24A)

LTM4601 Demo Circuit - 12A DC/DC µModules with PLL, Output Tracking & Margining (4.5-20V to .9V @ 12A)

LTM4601-1 Demo Circuit - 12A DC/DC uModules with PLL, Output Tracking & Margining (12V to 1.5V @ 12A)

LTM4601 Demo Circuit - 12A DC/DC uModules with PLL, Output Tracking & Margining (12V to 1.5V @ 12A)

Models for the following parts are available in LTspice:

LTM4601

LTM4601-1

LTM4601A

LTM4601A-1

LTM4601AHV

LTM4601HV

Reference Designs (14)

Altera Stratix IV E FPGA Development Kit

Terasic TR4 Stratix IV Board

Altera Embedded Systems Development Kit, Cyclone III Edition

Altera Arria V GT FPGA Development Kit

Altera Stratix IV GX FPGA Development Kit

Altera Audio Video Development Kit, Stratix IV GX Edition

Terasic DE5-Net Stratix V Board

Altera Arria V GX FPGA Development Kit

Terasic TR5-F40W Stratix V GX FPGA Development Kit

Altera DSP Development Kit, Cyclone III Edition

Altera Cyclone III FPGA Development Kit

Altera Transceiver Signal Integrity Kit, Stratix IV GX Edition

Terasic DE4 Development and Education Board

Altera 100G Development Kit, Stratix V Edition

Product Recommendations

LTM4601 Companion Parts

Recommended Related Parts

LTC2974, LTC4364, LTM4620A, LTC2960.

Recommended Suggested Oscillator

LTC6908.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number	Material Declaration	Reliability Data	Pin/Package Drawing	CAD Symbols, Footprints & 3D Models
LTM4601EV#PBF	Material Declaration	Reliability Data	118-Lead LGA (15mm x 15mm x 2.82mm)	Ultra Librarian SamacSys
LTM4601EV-1#PBF	Material Declaration	Reliability Data	118-Lead LGA (15mm x 15mm x 2.82mm)	Ultra Librarian SamacSys
LTM4601EY#PBF	Material Declaration	Reliability Data	118-Lead BGA (15mm x 15mm x 3.42mm)	Ultra Librarian SamacSys
LTM4601EY-1#PBF	Material Declaration	Reliability Data	118-Lead BGA (15mm x 15mm x 3.42mm)	Ultra Librarian SamacSys
LTM4601IV#PBF	Material Declaration	Reliability Data	118-Lead LGA (15mm x 15mm x 2.82mm)	Ultra Librarian SamacSys
LTM4601IV-1#PBF	Material Declaration	Reliability Data	118-Lead LGA (15mm x 15mm x 2.82mm)	Ultra Librarian SamacSys
LTM4601IY	Material Declaration	Reliability Data	118-Lead BGA (15mm x 15mm x 3.42mm)	Ultra Librarian SamacSys
LTM4601IY#PBF	Material Declaration	Reliability Data	118-Lead BGA (15mm x 15mm x 3.42mm)	Ultra Librarian SamacSys
LTM4601IY-1	Material Declaration	Reliability Data	118-Lead BGA (15mm x 15mm x 3.42mm)	Ultra Librarian SamacSys
LTM4601IY-1#PBF	Material Declaration	Reliability Data	118-Lead BGA (15mm x 15mm x 3.42mm)	Ultra Librarian SamacSys
Wafer Fabrication Data		R504 Reliability Data

PCN-PDN Information

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Support & Discussions

LTM4601 Discussions

RE: LTM4601-Output voltage is 5V

RE: [Urgent] Unexpected error in LTM4613 parallel operation

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Evaluation Boards

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Overview

Features and Benefits

Product Details

Product Categories

Comparable Parts Click to see all in Parametric Search

Product Lifecycle Production

Evaluation Kits (7)

DC1118A-C

DC1118A-B

DC1118A-A

DC1043A-B

DC1041A-A

DC1043A-A

DC1043A-C

DC1118A-C

Resources

DC1118A-B

Resources

DC1118A-A

Resources

DC1043A-B

Resources

DC1041A-A

Resources

DC1043A-A

Resources

DC1043A-C

Resources

Documentation & Resources

Tools & Simulations

LTspice

LTspice Simulations

Models for the following parts are available in LTspice:

Reference Designs (14)

Altera Stratix IV E FPGA Development Kit

Terasic TR4 Stratix IV Board

Altera Embedded Systems Development Kit, Cyclone III Edition

Altera Arria V GT FPGA Development Kit

Altera Stratix IV GX FPGA Development Kit

Altera Audio Video Development Kit, Stratix IV GX Edition

Terasic DE5-Net Stratix V Board

Altera Arria V GX FPGA Development Kit

Terasic TR5-F40W Stratix V GX FPGA Development Kit

Altera DSP Development Kit, Cyclone III Edition

Altera Cyclone III FPGA Development Kit

Altera Transceiver Signal Integrity Kit, Stratix IV GX Edition

Terasic DE4 Development and Education Board

Altera 100G Development Kit, Stratix V Edition

Altera Stratix IV E FPGA Development Kit

Altera Stratix IV E FPGA Development Kit

Features & Benefits

Parts Used

Terasic TR4 Stratix IV Board

Terasic TR4 Stratix IV Board

Features & Benefits

Parts Used

Altera Embedded Systems Development Kit, Cyclone III Edition

Altera Embedded Systems Development Kit, Cyclone III Edition

Features & Benefits

Parts Used

Altera Arria V GT FPGA Development Kit

Altera Arria V GT FPGA Development Kit

Features & Benefits

Parts Used

Altera Stratix IV GX FPGA Development Kit

Altera Stratix IV GX FPGA Development Kit

Features & Benefits

Parts Used

Altera Audio Video Development Kit, Stratix IV GX Edition

Altera Audio Video Development Kit, Stratix IV GX Edition

Features & Benefits

Parts Used

Terasic DE5-Net Stratix V Board

Terasic DE5-Net Stratix V Board

Features & Benefits

Parts Used

Altera Arria V GX FPGA Development Kit

Altera Arria V GX FPGA Development Kit

Features & Benefits

Parts Used