LTC4301L

PRODUCTION

Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation

Part Models: 8
1ku List Price: Starting From $2.73

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Overview

Level Translates 1V Signals to Standard 3.3V and 5V Logic Rails
Allows Bus Pull-Up Voltages as Low as 1V on SDAIN and SCLIN
Bidirectional Buffer* for SDA and SCL Lines Increases Fanout
Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane
Isolates Input SDA and SCL Line from Output
10kV Human Body Model ESD Protection
Supports Clock Stretching, Arbitration and Synchronization
High Impedance SDA, SCL Pins for V_CC = 0V
CS Gates Connection from Input to Output
Compatible with I²C^™, I²C Fast Mode and SMBus Standards (Up to 400kHz Operation)
Small 8-Pin MSOP and DFN (3mm x 3mm) Packages

The LTC4301L hot swappable, 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. In addition, the LTC4301L SDAIN and SCLIN pins are compatible with systems with pull-up voltages as low as 1V. Control circuitry prevents the backplane from being connected to the card until a stop bit or a bus idle is present. When the connection is made, the LTC4301L provides bidirectional buffering, keeping the backplane and card capacitances isolated.

When driven low, the CS input pin allows the part to connect after a stop bit or bus idle occurs. Driving CS high breaks the connection between SCLIN and SCLOUT and between SDAIN and SDAOUT. A logic high on READY indicates that the backplane and card sides are connected together.

The LTC4301L is offered in 8-pin DFN (3mm x 3mm) and MSOP packages.

Applications

Hot Board Insertion
Servers
Capacitance Buffer/Bus Extender
Desktop Computers

Part Models: 8
1ku List Price: Starting From $2.73

Documentation

Data Sheet 1

LTC4301L: Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation Data Sheet 08/31/2007

Reliability Data 1

R413 Reliability Data 03/26/2018

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
LTC4301LCDD#PBF	8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4301LCDD#TRPBF	8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4301LCMS8#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4301LCMS8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4301LIDD#PBF	8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4301LIDD#TRPBF	8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4301LIMS8#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4301LIMS8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LTC4301LCMS8#PBF	PRODUCTION
LTC4301LCMS8#TRPBF	PRODUCTION
LTC4301LIMS8#PBF	PRODUCTION
LTC4301LIMS8#TRPBF	PRODUCTION

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

Hardware Ecosystem

Parts	Product Life Cycle	Description
Interface Transceivers & Isolators 1
LTM2883	PRODUCTION	SPI/Digital or I²C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power

LTC4301L

Overview

Documentation

Data Sheet 1

Reliability Data 1

Video 2

Product Selector Card 2

Hardware Ecosystem

Tools & Simulations

IBIS Model 1

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