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Analog Devices LTC1694IS5#TRPBF — DC-DC Power Modules
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RoHS Compliant · Lead-Free EIA-481 Standard
Analog Devices / DC-DC Power Modules

LTC1694IS5#TRPBF I²C Bus Accelerator, 400 kHz, TSOT-23-5

MPN LTC1694IS5#TRPBF
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Analog Devices LTC1694IS5#TRPBF, I²C Bus Accelerator, 1 Channel, 400 kHz, 2.7V to 6V Supply, 60 µA, -40°C to 85°C, TSOT-23-5 Surface Mount.

In Stock: 29 pcs
MOQ: 1 pcs
Logistics: DHL / FedEx DAP (Global Express · 3-7d) Russia & CIS DDP (Door-to-Door Cleared)
Dispatch: Shenzhen / HK
Unit Price (USD)
$7.39 / pc
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10+ pcs
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$7.39 / ea

29 in stock — maximum per order · 3–4 days lead time

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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (12)
Package / Case SOT-23-5 Thin, TSOT-23-5
Supply Voltage 2.7V ~ 6V

Full Technical Specifications

12 Parameters
LTC1694IS5#TRPBF specifications
Parameter / AttributeSpecification / Value
TypeBuffer, Accelerator
MountingSurface Mount
Supply voltage2.7V ~ 6V
Current - supply60µA
Operating temperature-40°C ~ 85°C
Input2-Wire Bus
Output2-Wire Bus
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsI²C
CaseSOT-23-5 Thin, TSOT-23-5
Data rate400kHz
Channels1
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Standard factory-sealed packaging compliant with EIA-481 standards for automated high-speed SMT pick-and-place lines.

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Technical Details & Description

What this part does on the bus

The LTC1694IS5#TRPBF is a single-channel I²C bus accelerator from Analog Devices. It sits between a master and a slave or on a long bus segment, actively pulling the SDA and SCL lines high during the rising edge to sharpen edges and reduce rise time. This lets the bus run at its rated 400 kHz data rate even with higher capacitive loading — think longer traces, multiple connectors, or a few extra devices on the same pair of wires.

400 kHz — the Fast-mode ceiling

This part is rated for 400 kHz maximum, the I²C Fast-mode limit. The 60 µA supply current means it can sit on an always-powered bus segment without draining the rail.

ROHS3 compliant.

Frequently asked questions

What is the LTC1694IS5#TRPBF used for?

It is an I²C bus accelerator that sharpens rising edges on SDA and SCL lines, allowing a 400 kHz bus to drive higher capacitive loads — longer traces, multiple slaves, or connectors — without violating rise-time specs.

Does the LTC1694IS5#TRPBF support hot-swap or bus acceleration?

It is a bus accelerator, not a hot-swap controller. It actively pulls the bus lines high during the rising edge to reduce rise time. For hot-swap capability on I²C, you would need a separate hot-swap or buffer part.

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