LTC1874

PRODUCTION

Dual Constant Frequency Current Mode Step-Down DC/DC Controller

Data Sheet Product Selection Table

Part Models: 2
1ku List Price: Starting From $4.13

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Part Details

High Efficiency: Up to 94%
High Output Currents Easily Achieved
Wide V_IN Range: 2.5V to 9.8V
Constant Frequency 550kHz Operation
Burst Mode^™ Operation at Light Load
Low Dropout: 100% Duty Cycle
0.8V Reference Allows Low Output Voltages
Current Mode Operation for Excellent Line and Load Transient Response
Low Quiescent Current: 270µA (Each Controller)
Separate Shutdown Pin for Each Controller
Shutdown Mode Draws Only 8µA Supply Current (Each Controller)
±2.5% Reference Accuracy
Available in 16-Lead Narrow SSOP
Each Controller Functions Independent of the Other

Part Models: 2
1ku List Price: Starting From $4.13

Documentation

Data Sheet 1

LTC1874: Dual Constant Frequency Current Mode Step-Down DC/DC Controller Data Sheet 08/23/2007

Reliability Data 1

R402 Reliability Data 03/27/2018

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
LTC1874EGN#PBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1874EGN#TRPBF	16-Lead SSOP (Narrow 0.15 Inch)	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
LTC1874EGN#PBF	PRODUCTION
LTC1874EGN#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
LTC1874EGN#PBF	PRODUCTION
LTC1874EGN#TRPBF	PRODUCTION
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG]
		PCN22_0066_Form Material_Report Delta Qualification Matrix
LTC1874EGN#PBF	PRODUCTION
LTC1874EGN#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

Tools & Simulations

LTspice 1

LTC1874 - Step-Down (Buck) Regulators

Models for the following parts are available in LTspice:

LTC1874

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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