LTC1473

PRODUCTION

Dual PowerPath Switch Driver

Part Models: 4
1ku List Price: Starting From $5.11

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Overview

Power Path Management for Systems with Multiple DC Sources
All N-Channel Switching to Reduce Power Losses and System Cost
Switches and Isolates Sources Up to 30V
Adaptive High Voltage Step-Up Regulator for N-Channel Gate Drive
Capacitor Inrush and Short-Circuit Current Limited
User-Programmable Timer to Limit Switch Dissipation
Small Footprint: 16-Pin Narrow SSOP

The LTC1473 provides a power management solution for single and dual battery notebook computers and other portable equipment. The LTC1473 drives two sets of back-to-back N-channel MOSFET switches to route power to the input of the main system switching regulator. An internal boost regulator provides the voltage to fully enhance the logic level N-channel MOSFET switches. The LTC1473 senses current to limit surge currents both into and out of the batteries and the system supply capacitor during switch-over transitions or during fault conditions. A user-programmable timer monitors the time the MOSFET switches are in current limit and latches them off when programmed time is exceeded. A unique "2-diode mode" logic ensures system start-up regardless of which input receives power first.

Applications

Notebook Computers
Portable Instruments
Handi-Terminals
Portable Medical Equipment
Portable Industrial Control Equipment

Part Models: 4
1ku List Price: Starting From $5.11

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
LTC1473CGN#PBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1473CGN#TRPBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1473IGN#PBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1473IGN#TRPBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	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
LTC1473CGN#PBF	PRODUCTION
LTC1473CGN#TRPBF	PRODUCTION
LTC1473IGN#PBF	PRODUCTION
LTC1473IGN#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
LTC1473CGN#PBF	PRODUCTION
LTC1473CGN#TRPBF	PRODUCTION
LTC1473IGN#PBF	PRODUCTION
LTC1473IGN#TRPBF	PRODUCTION
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG]
		PCN22_0066_Form Material_Report Delta Qualification Matrix
LTC1473CGN#PBF	PRODUCTION
LTC1473CGN#TRPBF	PRODUCTION
LTC1473IGN#PBF	PRODUCTION
LTC1473IGN#TRPBF	PRODUCTION

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

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC1473L

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.