LTC3375

RECOMMENDED FOR NEW DESIGNS

8-Channel Programmable, Parallelable 1A Buck DC/DCs

Data Sheet Product Selection Table

Part Models: 6
1ku List Price: Starting From $6.48

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Part Details

8-Channel Independent Step-Down DC/DCs
Master-Slave Configurable for Up to 4A Per Output Channel with a Single Inductor
Independent V_IN Supply for Each DC/DC (2.25V to 5.5V)
All DC/DCs Have 0.425V to V_IN Output Voltage Range
Precision Enable Pin Thresholds for Autonomous Sequencing (or I²C Control)
1MHz to 3MHz Programmable/Synchronizable Oscillator Frequency (2MHz Default)
I²C Selectable Phasing (90° Steps) Per Channel
Programmable Power-On Reset/Watch Dog/Pushbutton Timing
Die Temperature Monitor Output
48-Lead (7mm × 7mm) QFN Package

Part Models: 6
1ku List Price: Starting From $6.48

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
LTC3375EUK#PBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3375EUK#TRPBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3375HUK#PBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3375HUK#TRPBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3375IUK#PBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3375IUK#TRPBF	48-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.

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

Parts	Product Life Cycle	Description
LTC3374	PRODUCTION	8-Channel Parallelable 1A Buck DC/DCs

Tools & Simulations

LTspice 1

LTC3375 - Step-Down (Buck) Regulators

Models for the following parts are available in LTspice:

LTC3375

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.

Evaluation Kits

LTC3375EUK Demo Board 8-Channel Programmable, Parallelable, 1A Buck DC/DCs (DC590 Companion board)

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Product Details

Demonstration circuit 1921A is a digitally programmable 8-output power supply with a pushbutton controller and watchdog timer, featuring the LTC3375. The LTC3375 has eight synchronous buck regulators, each with an independent V_IN supply. The buck regulators may be paralleled together to create a higher power buck regulator with a single inductor. The input range of the LTC3375 is ideal for single cell Li-Ion/Polymer battery applications. The switching regulator settings, such as enables, feedback voltages, operating modes, phasing and other functions, can be controlled via I²C. The buck regulators can also be enabled via external precision threshold enable pins to allow hardwired power-up sequences.

Resources

DC1921A - Demo Manual
741.00K

DC1921A - Schematic
92.00K

DC1921A - Design Files
1.00M

Reference Designs

NXP iMX6 Platform EVK Hardware Verified Design for IO and Robust Power Supply

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