LT8361
RECOMMENDED FOR NEW DESIGNSLow IQ Boost/SEPIC/Inverting Converter with 2A, 100V Switch
- Part Models
- 12
- 1ku List Price
- Starting From $3.07
Overview
- Wide Input Voltage Range: 2.8V to 60V
- Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 9μA
- 2A, 100V Power Switch
- Positive or Negative Output Voltage Programming with a Single Feedback Pin
- Programmable Frequency (300kHz to 2MHz)
- Synchronizable to an External Clock
- Spread Spectrum Frequency Modulation for Low EMI
- BIAS Pin for Higher Efficiency
- Programmable Undervoltage Lockout (UVLO)
- Thermally Enhanced 16-lead MSOP packages
- AEC-Q100 Qualified for Automotive Applications
The LT®8361 is a current mode DC/DC converter with a 100V, 2A switch operating from a 2.8V to 60V input. With a unique single feedback pin architecture it is capable of boost, SEPIC or inverting configurations. Burst Mode operation consumes as low as 9μA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 15mV.
An external compensation pin allows optimization of loop bandwidth over a wide range of input and output voltages and programmable switching frequencies between 300kHz and 2MHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between burst or pulse-skip modes of operation with or without Spread Spectrum Frequency Modulation for low EMI. For increased efficiency, a BIAS pin can accept a second input to supply the INTVCC regulator. Additional features include frequency foldback and programmable soft-start to control inductor current during startup.
The LT8361 is available in a thermally enhanced 16-lead MSOP package with four pins removed for high voltage pin spacings.
APPLICATIONS
- Industrial and Automotive
- Telecom
- Medical Diagnostic Equipment
- Portable Electronics
Documentation
Data Sheet 1
User Guide 1
Brochure 1
Analog Dialogue 2
Webcast 1
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 |
|---|---|---|---|
| LT8361EMSE#PBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361EMSE#TRPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361EMSE#WPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361EMSE#WTRPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361HMSE#PBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361HMSE#TRPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361HMSE#WPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361HMSE#WTRPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361IMSE#PBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361IMSE#TRPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361IMSE#WPBF | 16(12)-Lead MSOP w/ EP | ||
| LT8361IMSE#WTRPBF | 16(12)-Lead MSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LT8361EMSE#PBF | PRODUCTION | |
| LT8361EMSE#TRPBF | PRODUCTION | |
| LT8361EMSE#WPBF | PRODUCTION | |
| LT8361EMSE#WTRPBF | PRODUCTION | |
| LT8361HMSE#PBF | PRODUCTION | |
| LT8361HMSE#TRPBF | PRODUCTION | |
| LT8361HMSE#WPBF | PRODUCTION | |
| LT8361HMSE#WTRPBF | PRODUCTION | |
| LT8361IMSE#PBF | PRODUCTION | |
| LT8361IMSE#TRPBF | PRODUCTION | |
| LT8361IMSE#WPBF | PRODUCTION | |
| LT8361IMSE#WTRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0129 Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC |
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| LT8361EMSE#PBF | PRODUCTION | |
| LT8361EMSE#TRPBF | PRODUCTION | |
| LT8361HMSE#PBF | PRODUCTION | |
| LT8361HMSE#TRPBF | PRODUCTION | |
| LT8361IMSE#PBF | PRODUCTION | |
| LT8361IMSE#TRPBF | PRODUCTION | |
|
Dec 9, 2019 - 19_0278 LT8361 Data sheet limit changes. |
||
| LT8361EMSE#PBF | PRODUCTION | |
| LT8361EMSE#TRPBF | PRODUCTION | |
| LT8361HMSE#PBF | PRODUCTION | |
| LT8361HMSE#TRPBF | PRODUCTION | |
| LT8361IMSE#PBF | PRODUCTION | |
| LT8361IMSE#TRPBF | PRODUCTION | |
|
Apr 11, 2019 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process |
||
| LT8361EMSE#PBF | PRODUCTION | |
| LT8361EMSE#TRPBF | PRODUCTION | |
| LT8361HMSE#PBF | PRODUCTION | |
| LT8361HMSE#TRPBF | PRODUCTION | |
| LT8361IMSE#PBF | PRODUCTION | |
| LT8361IMSE#TRPBF | PRODUCTION | |
|
Jun 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices |
||
| LT8361HMSE#WPBF | PRODUCTION | |
| LT8361HMSE#WTRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice 2
- LT8361 Demo Circuit - Automotive 24V SEPIC Converter (4-48V to 24V @ 450mA)
- LT8361 Demo Circuit - Low Iq SEPIC Converter (4.5-48V to 24V @ 450mA)
Models for the following parts are available in LTspice:
- LT8361
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.
Evaluation Kits
LT8361 Demo Board | SEPIC, VIN = 4.5V to 48, VOUT= 24V @ up to 600mA