LTC3721-1

PRODUCTION

Push-Pull PWM Controller

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $5.84

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Part Details

High Efficiency Push-Pull PWM
1.5A Sink, 1A Source Output Drivers
Adjustable Push-Pull Dead-Time
Adjustable System Undervoltage Lockout and Hysteresis
Adjustable Leading Edge Blanking
Low Start-Up and Quiescent Currents
Current Mode Operation
Single Resistor Slope Compensation
V_CC UVLO and 25mA Shunt Regulator
Programmable Fixed Frequency Operation to 1MHz
Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection
5V, 15mA Low Dropout Regulator
16-Pin SSOP and (4mm x 4mm) QFN Packages

Part Models: 4
1ku List Price: Starting From $5.84

Documentation

Data Sheet 1

LTC3721-1: Push-Pull PWM Controller Data Sheet 08/28/2007

Reliability Data 1

R302 Reliability Data 03/22/2018

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
LTC3721EGN-1#PBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3721EGN-1#TRPBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3721EUF-1#PBF	16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3721EUF-1#TRPBF	16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking
		PCN24_0235_Form Material_Report Other Delta Qualification Matrix
LTC3721EGN-1#PBF	PRODUCTION
LTC3721EGN-1#TRPBF	PRODUCTION
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package
		PCN22_0235_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC3721EGN-1#PBF	PRODUCTION
LTC3721EGN-1#TRPBF	PRODUCTION
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG]
		PCN22_0066_Form Material_Report Delta Qualification Matrix
LTC3721EGN-1#PBF	PRODUCTION
LTC3721EGN-1#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
Isolated µModule Converters 2
LTM8047	RECOMMENDED FOR NEW DESIGNS	3.1V_IN to 32V_IN Isolated μModule (Power Module) DC/DC Converter
LTM8048	RECOMMENDED FOR NEW DESIGNS	3.1V_IN to 32V_IN Isolated μModule (Power Module) DC/DC Converter with LDO Post Regulator

Tools & Simulations

LTspice 1

LTC3721-1 - Switching Regulators

Models for the following parts are available in LTspice:

LTC3721-1

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.

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