LTC1439

PRODUCTION

Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators

Data Sheet Product Selection Table

Part Models: 10
1ku List Price: Starting From $9.42

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Part Details

Maintains Constant Frequency at Low Output Currents
Dual N-Channel MOSFET Synchronous Drive
Programmable Fixed Frequency (PLL Lockable)
Wide V_IN Range: 3.5V to 36V Operation
Ultrahigh Efficiency
Very Low Dropout Operation: 99% Duty Cycle
Low Dropout, 0.5A Linear Regulator for VPP
Generation or Low Noise Audio Supply
Built-In Power-On Reset Timer
Programmable Soft Start
Low-Battery Detector
Remote Output Voltage Sense
Foldback Current Limiting (Optional)
Pin Selectable Output Voltage
Logic-Controlled Micropower Shutdown: I_Q < 30µA
Output Voltages from 1.19V to 9V
Available in 28- and 36-Lead SSOP Packages

Part Models: 10
1ku List Price: Starting From $9.42

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
LTC1439CG#PBF	36-Lead SSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439CG#TRPBF	36-Lead SSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439CGW#PBF	36-Lead SSOP (Wide 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439CGW#TRPBF	36-Lead SSOP (Wide 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439EG#PBF	36-Lead SSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439EG#TRPBF	36-Lead SSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439IG#PBF	36-Lead SSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439IG#TRPBF	36-Lead SSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439IGW#PBF	36-Lead SSOP (Wide 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1439IGW#TRPBF	36-Lead SSOP (Wide 0.3 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
Nov 18, 2019 - 19_0266 Laser Top Mark for SSOP36/44/48 Packages assembled in ADPG and UTAC
		PCN19_0266_Form Material_Report Detailed Parts List
LTC1439CG#PBF	PRODUCTION
LTC1439CG#TRPBF	PRODUCTION
LTC1439EG#PBF	PRODUCTION
LTC1439EG#TRPBF	PRODUCTION
LTC1439IG#PBF	PRODUCTION
LTC1439IG#TRPBF	PRODUCTION
Aug 10, 2022 - 22_0174 Laser Top Mark Conversion for SSOP_W Package Assembled in ADPG [PNG]
		PCN22_0174_Form Material_Report Delta Qualification Matrix
LTC1439CGW#PBF	PRODUCTION
LTC1439CGW#TRPBF	PRODUCTION
LTC1439IGW#PBF	PRODUCTION
LTC1439IGW#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC1439 - Step-Down (Buck) Regulators

Models for the following parts are available in LTspice:

LTC1439

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.