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Analog Devices LTC4300A-2IMS8#PBF — Microcontrollers & Processors (MCU / MPU / DSP)
Analog Devices

LTC4300A-2IMS8#PBF I²C Hot-Swap Buffer, 400 kHz, 8-MSOP

MPNLTC4300A-2IMS8#PBF
End of Life

Analog Devices LTC4300A-2IMS8#PBF I²C hot-swap buffer/accelerator, 2-channel, 400 kHz data rate, 2.7-5.5 V supply, -40 to 85°C, 8-MSOP package, tube.

$6.5Ref. price · indicative, final on quote
LTC4300A-2IMS8#PBF datasheet
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LTC4300A-2IMS8#PBF Technical Specifications
ParameterValue
TypeBuffer, Accelerator
Mounting typeSurface Mount
Voltage2.7V ~ 5.5V
Current - supply5.1mA
Operating temperature-40°C ~ 85°C
Input2-Wire Bus
Output2-Wire Bus
PackageTube
ApplicationsI²C - Hotswap
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Data rate400kHz
Number of channels2
Capacitance - input10 pF

Product details

Active I²C hot-swap buffer for multi-board backplanes

The LTC4300A-2IMS8#PBF is an I²C bus buffer and accelerator from Analog Devices, designed to isolate bus capacitance and allow live card insertion into a powered backplane without corrupting the clock or data lines.

What the 2-channel hot-swap buffer does for your bus

Two independent buffer channels each present a 10 pF input capacitance to the upstream bus, isolating the main bus from the capacitance of a daughter card or module being hot-plugged. The accelerator function pulls up the rising edge faster than a passive pull-up resistor, allowing a higher total bus capacitance while staying within the 400 kHz timing budget. Supply current is 5.1 mA typical, which is the quiescent draw when the bus is idle — the dynamic current during data transmission adds a small pulse per edge.

RoHS3 compliant (ROHS3 Compliant), suitable for EU and global markets requiring the latest RoHS exemption list.

Frequently asked questions

What is the closest functional second-source to LTC4300A-2IMS8#PBF?

The LTC4300A-1IMS8#PBF is the closest peer — same 2-channel hot-swap buffer/accelerator, same 400 kHz data rate, same 2.7-5.5 V supply, same 8-MSOP package. The key difference is the bus disconnect logic: the -1 version uses a different enable pin polarity and does not include the accelerator function on the SDA line during a bus fault. Verify the enable logic in your schematic before substituting.

What compliance documentation does Analog Devices provide for LTC4300A-2IMS8#PBF?

The part is RoHS3 compliant (ROHS3 Compliant).