LTC3613

RECOMMENDED FOR NEW DESIGNS

24V, 15A Monolithic Step Down Regulator with Differential Output Sensing

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $11.55

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Part Details

Wide V_IN Range: 4.5V to 24V; V_OUT Range: 0.6V to 5.5V at up to 15A
0.67% Output Voltage Accuracy
Controlled On-Time Valley Current Mode Architecture, Excellent Current Sharing Capability
Frequency Programmable from 200kHz to 1MHz and Synchronizable to External Clock
R_SENSE or Inductor DCR Current Sensing With Accurate Current Limit
Fast Transient Response
Differential Output Voltage Sensing Allowing 500mV Common Mode Remote Ground
t_ON(MIN)= 65ns; t_OFF(MIN) = 105ns
Overvoltage Protection and Current Limit Foldback
Power Good Output Voltage Monitor
Voltage Tracking Start-Up
External V_CC Input for Bypassing Internal LDO
Micropower Shutdown: I_Q = 15μA
7mm × 9mm 56-pin QFN Package

Part Models: 4
1ku List Price: Starting From $11.55

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
LTC3613EWKH#PBF	56-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3613EWKH#TRPBF	56-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3613IWKH#PBF	56-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3613IWKH#TRPBF	56-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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
Dual-Supply Monitors 1
LTC2960	RECOMMENDED FOR NEW DESIGNS	36V Nano-Current Two-Input Voltage Monitor
Internal Power Switch Buck Regulators 1
LTC7130	RECOMMENDED FOR NEW DESIGNS	20V 20A Monolithic Buck Converter with Ultralow DCR Sensing
Low Voltage Hot Swap Controllers 1
LTC4218	RECOMMENDED FOR NEW DESIGNS	Hot Swap Controller
Silicon Oscillators 1
LTC6908		Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation

Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3613

LTpowerCAD 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.

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

LTC3613EWKH Demo Board | VIN = 4.5V to 24V, VOUT = 1.5V @ 15A

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Product Details

Demonstration circuit 1700A is a fast, high efficiency synchronous buck DC/DC converter with 4.5V to 24V input range. It can supply 15A maximum load current at 1.5V output. The demo board features the LTC3613EWKH regulator. No external MOSFETs are required.

The controlled on-time constant frequency valley current mode architecture allows for both fast transient response and constant frequency switching in steady-state operation.

Resources

DC1700A - Demo Manual
12/2/2011

DC1700A - Design File
12/2/2011

DC1700A - Schematic
12/14/2011

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

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