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LTM4601A/LTM4601A-1 - 12A μModule Regulators with PLL, Output Tracking and Margining

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
  • Redundant Mounting Pads for Enhanced Solder- Joint Strength
  • Parallel Multiple μModules for Current Sharing
  • Differential Remote Sensing for Precision Regulation (LTM4601A Only)
  • PLL Frequency Synchronization
  • ±1.5% Total DC Error
  • Current Foldback Protection (Disabled at Start-Up)
  • Pb-Free RoHS Compliant Package Gold Finish LGA (e4) or SAC 305 BGA (e1)
  • UltraFast™ Transient Response
  • Current Mode Control
  • Up to 95% Efficiency at 5VIN, 3.3VOUT
  • Programmable Soft-Start
  • Output Overvoltage Protection
  • Enhanced (15mm × 15mm × 2.82mm) Surface Mount LGA and (15mm × 15mm × 3.42mm) BGA Packages

Typical Application

LTM4601A Typical Application
LTM4601A Typical Application

Description

The LTM®4601A is a complete 12A step-down switch mode DC/DC power supply with onboard switching controller, MOSFETs, inductor and all support components. The μModule® regulator is housed in a small surface mount 15mm × 15mm × 2.82mm LGA or 15mm × 15mm × 3.42mm BGA package. The LTM4601A LGA and BGA packages are designed with redundant mounting pads to enhance solder-joint strength for extended temperature cycling endurance. Operating over an input voltage range of 4.5V to 20V, the LTM4601A 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 on the back side of PC boards. The μModule regulator can be synchronized with an external clock for reducing undesirable frequency harmonics and allows PolyPhase® operation for high load currents.

An onboard differential remote sense amplifier can be used to accurately regulate an output voltage independent of load current. The onboard remote sense amplifier is not available in the LTM4601A-1.

Packaging

CAD Symbols and Footprints: The file below contains the schematic symbol and PCB footprint which can be converted for use with most popular CAD tools. Download and install the free Ultra Librarian Reader (72Mb) to convert the .bxl file to the format appropriate for your CAD tool

For complete and up to date package information and drawings, please refer to our packaging page

15mm x 15mm x 2.8mm LGA, 15mm x 15mm x 3.42mm BGA

LTM4601A Package Drawing
LTM4601A Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTM4601AEV#PBF LGA 133 E $24.07 $16.85 View
LTM4601AEV-1#PBF LGA 133 E $23.43 $16.40 View
LTM4601AEY#PBF BGA 133 E $25.73 $18.01 View
LTM4601AHVEV#PBF LGA 133 E $29.14 $20.40 View
LTM4601AHVEY#PBF BGA 133 E $30.80 $21.56 View
LTM4601AHVIV#PBF LGA 133 I $32.06 $22.44 View
LTM4601AHVIY#PBF BGA 133 I $33.87 $23.71 View
LTM4601AHVMPV#PBF LGA 133 MP $57.50 $40.25 View
LTM4601AHVMPY#PBF BGA 133 MP $59.16 $41.41 View
LTM4601AIV#PBF LGA 133 I $26.49 $18.54 View
LTM4601AIV-1#PBF LGA 133 I $25.77 $18.04 View
LTM4601AIY#PBF BGA 133 I $28.30 $19.81 View
LTM4601EV#PBF LGA 118 E $25.05 $16.50 View
LTM4601EV-1#PBF LGA 118 E $24.21 $15.95 View
LTM4601EY#PBF BGA 118 E $26.87 $17.70 View
LTM4601HVEV#PBF LGA 118 E $30.56 $20.15 View
LTM4601HVIV#PBF LGA 118 I $33.65 $22.17 View
LTM4601IV#PBF LGA 118 I $27.55 $18.15 View
LTM4601IV-1#PBF LGA 118 I $26.64 $17.55 View
LTM4601IY#PBF BGA 118 I $29.28 $19.29 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1414A LTM4601AEV DEMO BOARD | 20V, 12A DC/DC uModule Reg $65.00
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Click here to view our complete list of demo boards

Applications

  • Telecom and Networking Equipment
  • Servers

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LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

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Related models available in LTspice IV
LTM4601-1
LTM4601
LTM4601A-1
LTM4601A
LTM4601AHV
LTM4601HV

Technical Support