LTC3418

PRODUCTION

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

Data Sheet

Part Models: 2
1ku List Price: Starting From $8.18

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Part Details

High Efficiency: Up to 95%
8A Output Current
2.25V to 5.5V Input Voltage Range
Low R_DS(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

Part Models: 2
1ku List Price: Starting From $8.18

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3418EUHF#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3418EUHF#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Analog to Digital Converters 1
LTC2991	RECOMMENDED FOR NEW DESIGNS	Octal I²C Voltage, Current, and Temperature Monitor
Oscillators 2
LTC6908		Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation
LTC6909	PRODUCTION	1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
Power System Managers & Sequencers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3418

LTpowerCAD 1

LTC3418 Project - 8A, 4MHz, Monolithic Buck Regulator (2.5-5.5V to 1.8V @ 8A)

Design tools for the following parts are available in LTpowerCAD:

LTC3418

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.

LTpowerCAD^® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

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

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Product Details

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.

Resources

DC785A - Demo Manual
9/24/2009

DC785A - Design File
9/24/2009

DC785A - Schematic
9/24/2009

Reference Designs

View Detailed Reference Design

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

Part Used

View Detailed Reference Design

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

Part Used

LTC3203
LTC3203-1
LTC3203B
LTC3203B-1

View Detailed Reference Design

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

Part Used

View Detailed Reference Design

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