LTC4300A-2IMS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC4300A-2IMS8 is a 2-wire I2C hot-swap bus buffer with 2 channels enabling safe card insertion and removal without disrupting the main I2C bus. Packaged in 8-lead MSOP with worldwide availability.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC4300A-2IMS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.0700(MOQ 19)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC4300A-2IMS8#PBF?
- 2-channel I2C hot-swap buffer allowing live insertion and removal of daughter cards without causing glitches or lockup on the main 2-wire bus
- Automatic bus capacitance buffering up to 400 pF per card side enabling I2C Fast-Mode operation at 400 kHz across long PCB traces
- Integrated stuck-bus detection and recovery with automatic timeout reset preventing permanent I2C bus lockup in fault conditions
What is LTC4300A-2IMS8#PBF used for?
The LTC4300A-2IMS8 is used in server backplanes, ATCA chassis, and hot-plug expansion card systems where I2C-connected peripherals must be inserted or removed while the system is powered. Its 2-channel buffering isolates the capacitance of plug-in cards from the main bus, allowing SMBus and I2C networks to maintain signal integrity at 400 kHz with many nodes. Telecom and data center equipment designers use it to manage PMBus power monitoring and IPMI management bus topologies across blade servers.
What are the specifications of LTC4300A-2IMS8#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 9 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | HOT SWAP CONTROLLER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTC4300A-2IMS8#PBF datasheet?
LTC4300A-2IMS8#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4300A-2IMS8#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LTC4300A-2IMS8 protect the I2C bus during hot-plug card insertion events?
The LTC4300A-2IMS8 disconnects the downstream card bus from the upstream main I2C bus until both sides reach compatible voltage levels during card insertion. This prevents the newly inserted card's capacitive load from pulling the SCL or SDA lines below the 0.4 V logic-low threshold, which would lock up all other I2C devices on the shared bus operating at 400 kHz Fast Mode.
What bus capacitance can the LTC4300A-2IMS8 support on the downstream card side?
The LTC4300A-2IMS8 supports downstream bus capacitance of up to 400 pF per channel, allowing daughter cards with multiple I2C devices, long PCB traces, and connector parasitic capacitance to be attached without degrading rise times on the 2-wire bus. This is approximately 4 times more capacitance than a typical I2C node limit of 100 pF, enabling more complex peripheral cards in hot-swap systems.
When would a designer use the LTC4300A-2IMS8 instead of a standard I2C multiplexer?
A designer chooses the LTC4300A-2IMS8 over a standard I2C multiplexer when the application requires safe hot-swap capability rather than just channel selection. In server blade systems where management cards are swapped during live operation, the hot-swap buffer prevents bus lockup events that occur with multiplexers which do not handle voltage level transitions during card insertion. The LTC4300A-2IMS8 also provides automatic stuck-bus recovery via a 30 ms timeout, avoiding manual bus reset procedures that would require system downtime.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $4.0700 | $77.33 |
| 250+ | $3.4619 | $865.47 |
| 500+ | $3.3375 | $1668.75 |
| 1000+ | $3.0700 | $3070.00 |
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