LTC4357IMS8#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC4357I is a single-channel 80 V N-channel hot swap controller designed for positive high-voltage automotive and industrial power rails. It drives an external N-channel MOSFET to limit inrush current during board insertion and protects against input fault conditions. Packaged in an 8-pin MSOP, it is ideal for automotive 48 V systems, server backplanes, and high-voltage industrial power distribution.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC4357IMS8#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.8300(MOQ 48)
- 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 LTC4357IMS8#TRPBF?
- Single-channel hot swap controller supporting up to 80 V input for high-voltage rails
- N-channel MOSFET driver enabling use of low on-resistance external switches
- Input fault protection controller for inrush current limiting and load short-circuit protection
- Automotive-grade design suitable for 48 V automotive systems
- Compact 8-pin MSOP package minimizing board footprint in power management circuits
What is LTC4357IMS8#TRPBF used for?
The LTC4357I is used in 48 V automotive power distribution systems, server blade hot-swap circuits, and industrial power rails up to 80 V where live board insertion without damage to the power bus is required. Its N-channel MOSFET drive topology allows use of low-RDS(on) switches, minimizing conduction losses in high-current telecom and industrial power supplies. The device also protects against reverse-voltage and overvoltage transients in harsh automotive environments subject to load-dump events.
What are the specifications of LTC4357IMS8#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 10 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | INPUT FAULT PROTECTION CONTROLLER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| 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 Current-Max (Isup) | 1.25mA |
| Supply Voltage-Max (Vsup) | 80V |
| Supply Voltage-Min (Vsup) | 9V |
| Supply Voltage-Nom (Vsup) | 20V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| 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 LTC4357IMS8#TRPBF datasheet?
LTC4357IMS8#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4357IMS8#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What maximum voltage does the LTC4357IMS8 support, and which automotive or industrial power rails can it manage?
The LTC4357I supports input voltages up to 80 V, covering 12 V, 24 V, and 48 V automotive power rails as well as 48 V telecom bays and 72 V industrial bus architectures. This wide voltage range makes a single part number suitable across diverse system voltages without requiring multiple controller variants.
Why does the LTC4357IMS8 use an N-channel MOSFET topology instead of P-channel, and how does it affect power dissipation?
N-channel MOSFETs at a given die area offer RDS(on) values 2× to 3× lower than P-channel equivalents, significantly reducing conduction losses in high-current hot swap paths. For a 48 V rail carrying 5 A through a 10 mΩ N-channel device, the drop is only 50 mV versus 100 mV to 150 mV for a comparable P-channel, improving system efficiency.
For a 48 V server backplane design, what protection features does the LTC4357IMS8 provide during hot insertion events?
During hot insertion, the LTC4357I controls the external N-channel MOSFET gate to ramp the supply voltage gradually, limiting inrush current to a level set by the MOSFET's RDS(on) and the controller's internal slew rate. If a load-side short circuit occurs, the controller detects the fault condition and turns off the MOSFET within microseconds, protecting the 48 V bus from sustained overcurrent conditions.
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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 |
|---|---|---|
| 48+ | $4.1801 | $200.64 |
| 62+ | $4.0408 | $250.53 |
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| 500+ | $3.0750 | $1537.50 |
| 1000+ | $2.8300 | $2830.00 |
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