LT3740

PRODUCTION

Wide Operating Range, Valley Mode, No R_SENSE^™ Synchronous Step-Down Controller

Data Sheet Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.36

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Part Details

Wide V_IN Range: 2.2V to 22V
Internal Boost Provides 6V Gate Drive For V_IN Down to 2.2V
No Sensing Resistor Required
Dual N-Channel MOSFET Synchronous Drive
Valley Current Mode Control
Optimized for High Step-Down Ratio
Power Good Output Voltage Monitor
0.8V Reference
Three Pin-Selected Current Limit Levels
Constant Switching Frequency: 300kHz
Programmable Soft-Start
Output Voltage Tracking
Available in 16-Pin 5mm × 3mm DFN

Part Models: 2
1ku List Price: Starting From $2.36

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
LT3740EDHC#PBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3740EDHC#TRPBF	16-Lead DFN (5mm x 3mm 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
Digital Power System Managers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Dual-Supply Monitors 1
LTC2960	RECOMMENDED FOR NEW DESIGNS	36V Nano-Current Two-Input Voltage Monitor
Multiple Output Buck Regulators 1
LTC3880	RECOMMENDED FOR NEW DESIGNS	Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
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:

LT3740

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.