LTC4380
RECOMMENDED FOR NEW DESIGNSLow Quiescent Current Surge Stopper
- Part Models
- 64
- 1ku List Price
- Starting From $3.79
Viewing:
Overview
- Low Quiescent Current: 8µA Operating
- Withstands Surge Voltage Up to the MOSFET Limit
- Wide Operating Voltage Range: 4V to 72V
- Overcurrent Protection
- Selectable Internal 31.5V/50V or Adjustable Gate Clamp Voltage
- Reverse Input Protection to –60V
- Adjustable Turn-On Threshold
- Adjustable Fault Timer with MOSFET Stress Acceleration
- Controls N-Channel MOSFET
- Latchoff and Retry Options
- Low Retry Duty Cycle During Faults
- 10-Pin DFN (3mm × 3mm) and MSOP Packages
- AEC-Q100 Qualified for Automotive Applications
The LTC4380 low quiescent current surge stopper protects loads from high voltage transients. Overvoltage protection is provided by clamping the gate voltage of an external N-channel MOSFET to limit the output voltage to a safe value during overvoltage events such as load dump in automobiles. Fixed gate clamp voltages are selectable for 12V and 24V/28V systems. For systems of any voltage up to 72V, use the adjustable gate clamp versions. Overcurrent protection is also provided.
An internal multiplier generates a TMR pin current proportional to VDS and ID, so that operating time in both overcurrent and overvoltage conditions is limited in accordance with MOSFET stress.
The GATE pin can drive back-to-back MOSFETs for reverse input protection, eliminating the voltage drop and dissipation of a Schottky diode solution. A low 8µA operating current permits use in always-on and battery powered applications. An accurate ON pin comparator monitors the input supply for undervoltage (UV) conditions and also serves as a shutdown input, reducing the quiescent current to 6µA.
Applications
- Automotive/Avionic/Industrial Surge Protection
- Hot Swap, Live Insertion
- High Side Switch for Battery Powered Systems
- Automotive Load Dump Protection
Documentation
Data Sheet 1
User Guide 1
Technical Articles 3
Product Information 1
Video 1
Brochure 1
Product Selector Card 2
Rarely Asked Question 2
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 |
|---|---|---|---|
| LTC4380CDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CDD-2#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CDD-2#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CDD-3#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CDD-3#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CDD-4#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CDD-4#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380CMS-1#PBF | 10-Lead MSOP | ||
| LTC4380CMS-1#TRPBF | 10-Lead MSOP | ||
| LTC4380CMS-2#PBF | 10-Lead MSOP | ||
| LTC4380CMS-2#TRPBF | 10-Lead MSOP | ||
| LTC4380CMS-3#PBF | 10-Lead MSOP | ||
| LTC4380CMS-3#TRPBF | 10-Lead MSOP | ||
| LTC4380CMS-4#PBF | 10-Lead MSOP | ||
| LTC4380CMS-4#TRPBF | 10-Lead MSOP | ||
| LTC4380HDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HDD-2#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HDD-2#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HDD-3#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HDD-3#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HDD-4#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HDD-4#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380HMS-1#PBF | 10-Lead MSOP | ||
| LTC4380HMS-1#TRPBF | 10-Lead MSOP | ||
| LTC4380HMS-1#WPBF | 10-Lead MSOP | ||
| LTC4380HMS-1#WTRPBF | 10-Lead MSOP | ||
| LTC4380HMS-2#PBF | 10-Lead MSOP | ||
| LTC4380HMS-2#TRPBF | 10-Lead MSOP | ||
| LTC4380HMS-2#WPBF | 10-Lead MSOP | ||
| LTC4380HMS-2#WTRPBF | 10-Lead MSOP | ||
| LTC4380HMS-3#PBF | 10-Lead MSOP | ||
| LTC4380HMS-3#TRPBF | 10-Lead MSOP | ||
| LTC4380HMS-3#WPBF | 10-Lead MSOP | ||
| LTC4380HMS-3#WTRPBF | 10-Lead MSOP | ||
| LTC4380HMS-4#PBF | 10-Lead MSOP | ||
| LTC4380HMS-4#TRPBF | 10-Lead MSOP | ||
| LTC4380HMS-4#WPBF | 10-Lead MSOP | ||
| LTC4380HMS-4#WTRPBF | 10-Lead MSOP | ||
| LTC4380IDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IDD-2#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IDD-2#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IDD-3#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IDD-3#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IDD-4#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IDD-4#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC4380IMS-1#PBF | 10-Lead MSOP | ||
| LTC4380IMS-1#TRPBF | 10-Lead MSOP | ||
| LTC4380IMS-1#WPBF | 10-Lead MSOP | ||
| LTC4380IMS-1#WTRPBF | 10-Lead MSOP | ||
| LTC4380IMS-2#PBF | 10-Lead MSOP | ||
| LTC4380IMS-2#TRPBF | 10-Lead MSOP | ||
| LTC4380IMS-2#WPBF | 10-Lead MSOP | ||
| LTC4380IMS-2#WTRPBF | 10-Lead MSOP | ||
| LTC4380IMS-3#PBF | 10-Lead MSOP | ||
| LTC4380IMS-3#TRPBF | 10-Lead MSOP | ||
| LTC4380IMS-3#WPBF | 10-Lead MSOP | ||
| LTC4380IMS-3#WTRPBF | 10-Lead MSOP | ||
| LTC4380IMS-4#PBF | 10-Lead MSOP | ||
| LTC4380IMS-4#TRPBF | 10-Lead MSOP | ||
| LTC4380IMS-4#WPBF | 10-Lead MSOP | ||
| LTC4380IMS-4#WTRPBF | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 17, 2025 - 25_0043 Change of Gold to Copper Wire and BOM (Automotive) |
||
| LTC4380CDD-1#PBF | PRODUCTION | |
| LTC4380CDD-1#TRPBF | PRODUCTION | |
| LTC4380CDD-2#PBF | PRODUCTION | |
| LTC4380CDD-2#TRPBF | PRODUCTION | |
| LTC4380CDD-3#PBF | PRODUCTION | |
| LTC4380CDD-3#TRPBF | PRODUCTION | |
| LTC4380CDD-4#PBF | PRODUCTION | |
| LTC4380CDD-4#TRPBF | PRODUCTION | |
| LTC4380HDD-2#PBF | PRODUCTION | |
| LTC4380HDD-2#TRPBF | PRODUCTION | |
| LTC4380HDD-3#PBF | PRODUCTION | |
| LTC4380HDD-3#TRPBF | PRODUCTION | |
| LTC4380HDD-4#PBF | PRODUCTION | |
| LTC4380HDD-4#TRPBF | PRODUCTION | |
| LTC4380IDD-2#PBF | PRODUCTION | |
| LTC4380IDD-2#TRPBF | PRODUCTION | |
| LTC4380IDD-3#PBF | PRODUCTION | |
| LTC4380IDD-3#TRPBF | PRODUCTION | |
| LTC4380IDD-4#PBF | PRODUCTION | |
| LTC4380IDD-4#TRPBF | PRODUCTION | |
|
Jun 6, 2025 - 25_0119 Bond Wire Change from Gold to Copper |
||
| LTC4380CMS-1#PBF | PRODUCTION | |
| LTC4380CMS-1#TRPBF | PRODUCTION | |
| LTC4380CMS-2#PBF | PRODUCTION | |
| LTC4380CMS-2#TRPBF | PRODUCTION | |
| LTC4380CMS-3#PBF | PRODUCTION | |
| LTC4380CMS-3#TRPBF | PRODUCTION | |
| LTC4380CMS-4#PBF | PRODUCTION | |
| LTC4380CMS-4#TRPBF | PRODUCTION | |
| LTC4380HMS-1#PBF | PRODUCTION | |
| LTC4380HMS-1#TRPBF | PRODUCTION | |
| LTC4380HMS-1#WPBF | PRODUCTION | |
| LTC4380HMS-1#WTRPBF | PRODUCTION | |
| LTC4380HMS-2#PBF | PRODUCTION | |
| LTC4380HMS-2#TRPBF | PRODUCTION | |
| LTC4380HMS-2#WPBF | PRODUCTION | |
| LTC4380HMS-2#WTRPBF | PRODUCTION | |
| LTC4380HMS-3#PBF | PRODUCTION | |
| LTC4380HMS-3#TRPBF | PRODUCTION | |
| LTC4380HMS-3#WPBF | PRODUCTION | |
| LTC4380HMS-3#WTRPBF | PRODUCTION | |
| LTC4380HMS-4#WPBF | PRODUCTION | |
| LTC4380HMS-4#WTRPBF | PRODUCTION | |
| LTC4380IMS-1#PBF | PRODUCTION | |
| LTC4380IMS-1#TRPBF | PRODUCTION | |
| LTC4380IMS-1#WPBF | PRODUCTION | |
| LTC4380IMS-1#WTRPBF | PRODUCTION | |
| LTC4380IMS-2#PBF | PRODUCTION | |
| LTC4380IMS-2#TRPBF | PRODUCTION | |
| LTC4380IMS-2#WPBF | PRODUCTION | |
| LTC4380IMS-2#WTRPBF | PRODUCTION | |
| LTC4380IMS-3#PBF | PRODUCTION | |
| LTC4380IMS-3#TRPBF | PRODUCTION | |
| LTC4380IMS-3#WPBF | PRODUCTION | |
| LTC4380IMS-3#WTRPBF | PRODUCTION | |
| LTC4380IMS-4#WPBF | PRODUCTION | |
| LTC4380IMS-4#WTRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package |
||
| LTC4380CMS-1#PBF | PRODUCTION | |
| LTC4380CMS-1#TRPBF | PRODUCTION | |
| LTC4380HMS-1#WPBF | PRODUCTION | |
| LTC4380HMS-1#WTRPBF | PRODUCTION | |
| LTC4380HMS-2#WPBF | PRODUCTION | |
| LTC4380HMS-2#WTRPBF | PRODUCTION | |
| LTC4380HMS-3#WPBF | PRODUCTION | |
| LTC4380HMS-3#WTRPBF | PRODUCTION | |
| LTC4380HMS-4#WPBF | PRODUCTION | |
| LTC4380HMS-4#WTRPBF | PRODUCTION | |
| LTC4380IMS-1#WPBF | PRODUCTION | |
| LTC4380IMS-1#WTRPBF | PRODUCTION | |
| LTC4380IMS-3#WPBF | PRODUCTION | |
| LTC4380IMS-3#WTRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC4380CMS-1#PBF | PRODUCTION | |
| LTC4380CMS-1#TRPBF | PRODUCTION | |
| LTC4380CMS-2#PBF | PRODUCTION | |
| LTC4380CMS-2#TRPBF | PRODUCTION | |
| LTC4380CMS-3#PBF | PRODUCTION | |
| LTC4380CMS-3#TRPBF | PRODUCTION | |
| LTC4380CMS-4#PBF | PRODUCTION | |
| LTC4380CMS-4#TRPBF | PRODUCTION | |
| LTC4380HMS-1#PBF | PRODUCTION | |
| LTC4380HMS-1#TRPBF | PRODUCTION | |
| LTC4380HMS-1#WPBF | PRODUCTION | |
| LTC4380HMS-1#WTRPBF | PRODUCTION | |
| LTC4380HMS-2#PBF | PRODUCTION | |
| LTC4380HMS-2#TRPBF | PRODUCTION | |
| LTC4380HMS-2#WPBF | PRODUCTION | |
| LTC4380HMS-2#WTRPBF | PRODUCTION | |
| LTC4380HMS-3#PBF | PRODUCTION | |
| LTC4380HMS-3#TRPBF | PRODUCTION | |
| LTC4380HMS-3#WPBF | PRODUCTION | |
| LTC4380HMS-3#WTRPBF | PRODUCTION | |
| LTC4380HMS-4#PBF | PRODUCTION | |
| LTC4380HMS-4#TRPBF | PRODUCTION | |
| LTC4380HMS-4#WPBF | PRODUCTION | |
| LTC4380HMS-4#WTRPBF | PRODUCTION | |
| LTC4380IMS-1#PBF | PRODUCTION | |
| LTC4380IMS-1#TRPBF | PRODUCTION | |
| LTC4380IMS-1#WPBF | PRODUCTION | |
| LTC4380IMS-1#WTRPBF | PRODUCTION | |
| LTC4380IMS-2#PBF | PRODUCTION | |
| LTC4380IMS-2#TRPBF | PRODUCTION | |
| LTC4380IMS-2#WPBF | PRODUCTION | |
| LTC4380IMS-2#WTRPBF | PRODUCTION | |
| LTC4380IMS-3#PBF | PRODUCTION | |
| LTC4380IMS-3#TRPBF | PRODUCTION | |
| LTC4380IMS-3#WPBF | PRODUCTION | |
| LTC4380IMS-3#WTRPBF | PRODUCTION | |
| LTC4380IMS-4#PBF | PRODUCTION | |
| LTC4380IMS-4#TRPBF | PRODUCTION | |
| LTC4380IMS-4#WPBF | PRODUCTION | |
| LTC4380IMS-4#WTRPBF | PRODUCTION | |
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LTC4380CMS-2#PBF | PRODUCTION | |
| LTC4380CMS-2#TRPBF | PRODUCTION | |
| LTC4380CMS-3#PBF | PRODUCTION | |
| LTC4380CMS-3#TRPBF | PRODUCTION | |
| LTC4380CMS-4#PBF | PRODUCTION | |
| LTC4380CMS-4#TRPBF | PRODUCTION | |
| LTC4380HMS-1#PBF | PRODUCTION | |
| LTC4380HMS-1#TRPBF | PRODUCTION | |
| LTC4380HMS-3#PBF | PRODUCTION | |
| LTC4380HMS-3#TRPBF | PRODUCTION | |
| LTC4380HMS-4#PBF | PRODUCTION | |
| LTC4380HMS-4#TRPBF | PRODUCTION | |
| LTC4380IMS-1#PBF | PRODUCTION | |
| LTC4380IMS-1#TRPBF | PRODUCTION | |
| LTC4380IMS-2#PBF | PRODUCTION | |
| LTC4380IMS-2#TRPBF | PRODUCTION | |
| LTC4380IMS-3#PBF | PRODUCTION | |
| LTC4380IMS-3#TRPBF | PRODUCTION | |
| LTC4380IMS-4#PBF | PRODUCTION | |
| LTC4380IMS-4#TRPBF | PRODUCTION | |
|
Jul 12, 2022 - 22_0157 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM] |
||
| LTC4380HMS-1#WPBF | PRODUCTION | |
| LTC4380HMS-1#WTRPBF | PRODUCTION | |
| LTC4380HMS-2#WPBF | PRODUCTION | |
| LTC4380HMS-2#WTRPBF | PRODUCTION | |
| LTC4380HMS-3#WPBF | PRODUCTION | |
| LTC4380HMS-3#WTRPBF | PRODUCTION | |
| LTC4380HMS-4#WPBF | PRODUCTION | |
| LTC4380HMS-4#WTRPBF | PRODUCTION | |
| LTC4380IMS-1#WPBF | PRODUCTION | |
| LTC4380IMS-1#WTRPBF | PRODUCTION | |
| LTC4380IMS-3#WPBF | PRODUCTION | |
| LTC4380IMS-3#WTRPBF | PRODUCTION | |
| LTC4380IMS-4#WPBF | PRODUCTION | |
| LTC4380IMS-4#WTRPBF | PRODUCTION | |
|
Jun 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices |
||
| LTC4380HMS-1#WPBF | PRODUCTION | |
| LTC4380HMS-1#WTRPBF | PRODUCTION | |
| LTC4380HMS-2#WPBF | PRODUCTION | |
| LTC4380HMS-2#WTRPBF | PRODUCTION | |
| LTC4380HMS-3#WPBF | PRODUCTION | |
| LTC4380HMS-3#WTRPBF | PRODUCTION | |
| LTC4380HMS-4#WPBF | PRODUCTION | |
| LTC4380HMS-4#WTRPBF | PRODUCTION | |
| LTC4380IMS-1#WPBF | PRODUCTION | |
| LTC4380IMS-1#WTRPBF | PRODUCTION | |
| LTC4380IMS-3#WPBF | PRODUCTION | |
| LTC4380IMS-3#WTRPBF | PRODUCTION | |
| LTC4380IMS-4#WPBF | PRODUCTION | |
| LTC4380IMS-4#WTRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC4359 | RECOMMENDED FOR NEW DESIGNS | Ideal Diode Controller with Reverse Input Protection |
| Overvoltage & Overcurrent Protectors 1 | ||
| LTC4367 | RECOMMENDED FOR NEW DESIGNS | 100V Overvoltage, Undervoltage and Reverse Supply Protection Controller |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC4380-1
- LTC4380-2
- LTC4380-3
- LTC4380-4
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
