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LTM4601 - 12A DC/DC µModules with PLL, Output Tracking and Margining

Features

uModule Packaging, Assembly and Thermal Performance
  • For samples contact your local sales office.
  • Click Here for LTM4601 Evaluation Kits
  • 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 μModules for Current Sharing
  • Differential Remote Sensing for Precision Regulation (LTM4601 Only)
  • PLL Frequency Synchronization
  • ±1.5% Regulation
  • Current Foldback Protection (Disabled at Start-Up)
  • Pb-Free (e4) RoHS Compliant Package with Gold Finish Pads
  • 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 × 2.8mm) Surface Mount LGA Package

Typical Application

LTM4601
LTM4601
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Description

The LTM4601 is a complete 12A step-down switch mode DC/DC power supply with onboard switching controller, MOSFETs, inductor and all support components. The μModule is housed in a small surface mount 15mm × 15mm × 2.8mm LGA package. 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 (2.8mm) and light weight (1.7g) package easily mounts in unused space on the back side of PC boards for high density point of load regulation. The μModule 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 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 LTM4601-1.

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Packaging

15mm x 15mm x 2.8mm LGA

LTM4601
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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
LTM4601AHVEV#PBF LGA 133 E $29.14 $20.40 View
LTM4601AHVIV#PBF LGA 133 I $32.06 $22.44 View
LTM4601AHVMPV#PBF LGA 133 MP $57.50 $40.25 View
LTM4601AIV#PBF LGA 133 I $26.49 $18.54 View
LTM4601AIV-1#PBF LGA 133 I $25.77 $18.04 View
LTM4601EV#PBF LGA 118 E $25.05 $16.50 View
LTM4601EV-1#PBF LGA 118 E $24.21 $15.95 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
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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.

Evaluation Kits

Part Number Description Price
DC1041A-A LTM4601EV | uModule Demo Board $65.00
DC1041A-B LTM4601HV | uModule Demo Board $65.00
DC1118A-A LTM4601EV Demo Board| Polyphase Dual Indep Output $75.00
DC1118A-B LTM4601EV Demo Board| Polyphase Triple Indep Output $85.00
DC1118A-C LTM4601EV Demo Board| Polyphase Quad Indep Output $95.00
DC1043A-A LTM4601 Demo Board | 20A Paralleled Polyphase Step-Down Suppy (Dual LTM4601) $75.00
DC1043A-B LTM4601 Demo Board | 30A Paralleled Polyphase Step-Down Supply (Triple LTM4601) $85.00
DC1043A-C LTM4601 Demo Board | 40A Paralleled Polyphase Step-Down Supply (Quad LTM4601) $95.00
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Applications

  • Telecom and Networking Equipment
  • Servers
  • Industrial Equipment
  • Point of Load Regulation
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Simulate

LTSpice / SwitcherCAD III is a powerful FREE circuit simulator and schematic capture program, providing macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

  • Step 1. If you do not already have a copy of LTSpice, click here to download and install LTSpice / SwitcherCAD III

  • Step 2. Once LTSpice is installed, click here for a ready to run  demonstration circuit of the LTM4601 or run  demonstration circuit of the LTM4601-1.

  • Step 3. If LTspice / SwitcherCAD III does not automatically open after clicking the above link, 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 demonstartion circuit by selecting "Open" from the "File" menu.
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