LTC3614

PRODUCTION

4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

Data Sheet Product Selection Table

Part Models: 8
1ku List Price: Starting From $4.13

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Part Details

4A Output Current
2.25V to 5.5V Input Voltage Range
Low Output Ripple Burst Mode^® Operation: I_Q = 75μA
±1% Output Voltage Accuracy
Output Voltage Down to 0.6V
High Efficiency: Up to 95%
Low Dropout Operation: 100% Duty Cycle
Programmable Slew Rate on SW Node Reduces Noise and EMI
Adjustable Switching Frequency: Up to 4MHz
Optional Active Voltage Positioning (AVP) with Internal Compensation
Selectable Pulse-Skipping/Forced Continuous/Burst Mode Operation with Adjustable Burst Clamp
Programmable Soft-Start
Inputs for Start-Up Tracking or External Reference
DDR Memory Mode, I_OUT = ±3A
Available in a 24-Pin 3mm × 5mm QFN Thermally Enhanced Package

Part Models: 8
1ku List Price: Starting From $4.13

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
LTC3614EUDD#PBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3614EUDD#TRPBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3614HUDD#PBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3614HUDD#TRPBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3614IUDD#PBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3614IUDD#TRPBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3614MPUDD#PBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3614MPUDD#TRPBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 30, 2020 - 20_0244 Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0244_Form Material_Report Delta Qualification Matrix Qualification Results Summary Other
LTC3614EUDD#PBF	PRODUCTION
LTC3614EUDD#TRPBF	PRODUCTION
LTC3614HUDD#PBF	PRODUCTION
LTC3614HUDD#TRPBF	PRODUCTION
LTC3614IUDD#PBF	PRODUCTION
LTC3614IUDD#TRPBF	PRODUCTION
LTC3614MPUDD#PBF	PRODUCTION
LTC3614MPUDD#TRPBF	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital Power System Managers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Multiple Output Buck Regulators 1
LTC3880	RECOMMENDED FOR NEW DESIGNS	Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
Single-Supply Monitors 1
LTC2935	PRODUCTION	Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4365	RECOMMENDED FOR NEW DESIGNS	Overvoltage, Undervoltage and Reverse Supply Protection Controller

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3614

LTpowerCAD 1

LTC3614 Project - 4A, 2.25V to 5.5Vin, 4MHz Monolithic Buck Regulator (2.5-5V to 2.5V @ 4A)

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

LTC3614EUDD Demo Board | 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

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Product Details

Demo Circuit 1467 is a high efficiency, high frequency step-down converter, incorporating the LTC3614 monolithic synchronous regulator. The DC1467A has an input voltage range of 2.25V to 5.5V, and is capable of delivering up to 4A of output current. The output voltage of the DC1467A can be set as low as 0.6V, the reference voltage of the LTC3614. The operating frequency range of the DC1467A is either set to a fixed 2.25 MHz by connecting the frequency pin to SVin, set by an external resistor, or synchronized to an external clock, with a range up to 4 MHz. At low load currents, the DC1467A can operate in either noise sensitive applications, due to the capability of the LTC3614 to operate in pulse-skipping mode, or in high efficiency applications, because the LTC3614 also has Burst-Mode capability. The Burst Mode clamp can be set externally.

Resources

DC1467A - Demo Board
5/5/2010

DC1467A - Schematic
5/5/2010

DC1467A - Design Files
5/5/2010

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

LT3080

LTC3026

LTC3025-1
LTC3025-2
LTC3025-3
LTC3025-4

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