LTC3418
Info: : PRODUCTION
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LTC3418

8A, 4MHz, Monolithic Synchronous Step-Down Regulator

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $8.18
Features
  • High Efficiency: Up to 95%
  • 8A Output Current
  • 2.25V to 5.5V Input Voltage Range
  • Low RDS(ON) Internal Switch: 35mΩ
  • Tracking Input to Provide Easy Supply Sequencing
  • Programmable Frequency: 300kHz to 4MHz
  • 0.8V ±1% Reference Allows Low Output Voltage
  • Quiescent Current: 380μA
  • Selectable Forced Continuous/Burst Mode® Operation with Adjustable Burst Clamp
  • Synchronizable Switching Frequency
  • Low Dropout Operation: 100% Duty Cycle
  • Power Good Output Voltage Monitor
  • Overtemperature Protected
  • 38-Lead Low Profile (0.75mm) Thermally Enhanced QFN (5mm × 7mm) Package
Additional Details
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The LTC3418 is a high efficiency, monolithic synchronous step-down DC/DC converter utilizing a constant frequency, current mode architecture. It operates from an input voltage range of 2.25V to 5.5V and provides a regulated output voltage from 0.8V to 5V while delivering up to 8A of output current. The internal synchronous power switch increases efficiency and eliminates the need for an external Schottky diode. Switching frequency is set by an external resistor or can be synchronized to an external clock. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of loads and output capacitors.

The LTC3418 can be configured for either Burst Mode operation or forced continuous operation. Forced continuous operation reduces noise and RF interference while Burst Mode operation provides high efficiency by reducing gate charge losses at light loads. In Burst Mode operation, external control of the burst clamp level allows the output voltage ripple to be adjusted according to the requirements of the application. A tracking input in the LTC3418 allows for proper sequencing with respect to another power supply.

Applications

  • Microprocessor, DSP and Memory Supplies
  • Distributed 2.5V, 3.3V and 5V Power Systems
  • Automotive Applications
  • Point of Load Regulation
  • Notebook Computers
Part Models 2
1ku List Price Starting From $8.18

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC3418EUHF#PBF
  • HTML
  • HTML
LTC3418EUHF#TRPBF
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC785A

LTC3418EUHF Demo Board | 2.25V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 8A

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DC785A

LTC3418EUHF Demo Board | 2.25V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 8A

LTC3418EUHF Demo Board | 2.25V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 8A

Product Detail

DC785 is an 8A high efficiency, high frequency buck converter, incorporating the LTC3418 monolithic synchronous regulator. The DC785 has an input voltage range of 2.25V to 5.5V and the jumper-selectable output voltage can be set to 1.2V, 1.5V, 1.8V or a user-determined value up to 5V. 

Tools & Simulations

Tools & Simulations 2

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.

Reference Designs

Reference Designs 4

DK-DEV-3CLS200N Dev Kit

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altera-cyclone-iii-ls-fpga-development-kit

altera-cyclone-iii-ls-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link
DK-EMB-3C120N Dev Kit

zoomopens a dialog

altera-embedded-systems-development-kit-cyclone-iii-edition

altera-embedded-systems-development-kit-cyclone-iii-edition

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link
DK-DEV-3C120N Dev Kit

zoomopens a dialog

altera-cyclone-iii-fpga-development-kit

altera-cyclone-iii-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link
DK-DSP-3C120N Dev Kit

zoomopens a dialog

altera-dsp-development-kit-cyclone-iii-edition

altera-dsp-development-kit-cyclone-iii-edition

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

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