LTM4604A - Low Voltage, 4A DC/DC μModule with Tracking


LTM4604 - Low Voltage, 4A DC/DC µModule with Tracking

Features

uModule Packaging, Assembly and Thermal Performance
  • Click Here for LTM4604 Evaluation Kit
  • For samples contact your local sales office.
  • Complete Standalone Power Supply
  • Wide Input Voltage Range: 2.375V to 5.5V
  • 4A DC, 5A Peak Output Current
  • 0.8V to 5V Output
  • Output Voltage Tracking
  • ±2% Total DC Error
  • UltraFast Transient Response
  • Power Good Indicator
  • Current Mode Control
  • Current Foldback Protection, Parallel/Current Sharing
  • Up to 95% Efficiency
  • Programmable Soft-Start
  • Micropower Shutdown: IQ = 7µA
  • Overtemperature Protection
  • Small and Very Low Profile Package: 15mm x 9mm x 2.3mm LGA

Typical Application

LTM4604
LTM4604
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Description

The LTM4604 is a complete 4A switch mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 2.375V to 5.5V, the LTM4604 supports an output voltage range of 0.8V to 5V, set by a single resistor. This high efficiency design delivers up to 4A continuous current (5A peak). Only bulk output capacitors are needed to complete the design.

The low profile package (2.3mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports output voltage tracking for supply rail sequencing.

Fault protection features include foldback current protection, thermal shutdown and a programmable soft-start function. The LTM4604 is offered in a space saving and thermally enhanced 15mm x 9mm x 2.3mm LGA package and is Pb free and RoHS compliant.

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Packaging

15mm × 9mm × 2.3mm LGA

LTM4604
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTM4604AEV#PBF LGA 66 E $12.14 $8.50 View
LTM4604AIV#PBF LGA 66 I $13.36 $9.35 View
LTM4604EV#PBF LGA 66 E $12.90 $8.50 View
LTM4604IV#PBF LGA 66 I $14.19 $9.35 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
DC1392A LTM4604AEV Demoboard | Low Voltage, 4A DC/DC microModule with Tracking $65.00
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Applications

  • Telecom and Networking Equipment
  • Servers
  • Storage Cards
  • ATCA Cards
  • Industrial Equipment
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Simulate

LTSpice IV 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 IV, 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 LTM4604.

  • Step 3. If LTspice IV 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.
For our complete list of hundreds of ready to run demo circuits, visit our LTspice IV Demo Circuits Collection
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