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LTM4605 - High Efficiency Buck-Boost DC/DC µModule

Features

uModule Packaging, Assembly and Thermal Performance
  • For samples contact your local sales office.
  • Click Here for LTM4605 Evaluation Kit
  • Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
  • Wide VIN Range: 4.5V to 20V
  • Wide VOUT Range: 0.8V to 16V
  • 5A DC Typical (12A DC Typical at Buck Mode)
  • High Efficiency Up to 98%
  • Current Mode Control
  • Power Good Output Signal
  • Phase-Lockable Fixed Frequency: 200kHz to 400kHz
  • Ultra-Fast Transient Response
  • Current Foldback Protection
  • Output Overvoltage Protection
  • Small, Low Profile Surface Mount LGA Package (15mm × 15mm × 2.8mm)

Typical Application

LTM4605
LTM4605
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Description

The LTM4605 is a high efficiency switching mode buck- boost power supply. Included in the package are the switching controller, power FETs, and support components. Operating over an input voltage range of 4.5V to 20V, the LTM4605 supports an output voltage range of 0.8V to 16V, set by a resistor. This high efficiency design delivers up to 5A continuous current in boost mode (12A in buck mode). Only the inductor, sense resistor, bulk input and output capacitors are needed to finish the design.

The low profile package enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The high switching frequency and current mode architecture enable a very fast transient response to line and load changes. The LTM4605 can be frequency synchronized with an external clock to reduce undesirable frequency harmonics.

Fault protection features include overvoltage and foldback current protection. The DC/DC μModule is offered in a small and thermally enhanced 15mm × 15mm × 2.8mm LGA package. The LTM4605 is Pb-free and RoHS compliant.
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Packaging

15mm x 15mm x 2.8mm LGA

LTM4605
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTM4605EV#PBF LGA 141 E $26.86 $18.80 View
LTM4605IV#PBF LGA 141 I $29.55 $20.68 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
DC1198A-A LTM4605EV Demoboard | 16V High Efficiency Buck-Boost Power Module $65.00
DC1198A-B LTM4607 Demoboard | 5A 36Vin High Efficiency Buck-Boost DC/DC uModule $65.00
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Applications

  • Telecom, Servers and Networking Equipment
  • Industrial and Automotive Equipment
  • High Power Battery-Operated Devices
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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 LTM4605.

  • 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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