LT8301
RECOMMENDED FOR NEW DESIGNS42VIN Micropower No-Opto Isolated Flyback Converter with 65V/1.2A Switch
- Part Models
- 18
- 1ku List Price
- Starting From $4.20
Overview
- AEC-Q100 Qualified for Automotive Applications
- 2.7V to 42V Input Voltage Range
- 1.2A, 65V Internal DMOS Power Switch
- Low Quiescent Current:
- 100µA in Sleep Mode
- 350µA in Active Mode
- Boundary Mode Operation at Heavy Load
- Low-Ripple Burst Mode® Operation at Light Load
- Minimum Load <0.5% (Typ) of Full Output
- VOUT Set with a Single External Resistor
- No Transformer Third Winding or Opto-Isolator Required for Regulation
- Accurate EN/UVLO Threshold and Hysteresis
- Internal Compensation and Soft-Start
- Output Short-Circuit Protection
- 5-Lead TSOT-23 Package
The LT8301 is a micropower isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with a single external resistor. Internal compensation and soft-start further reduce external component count. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. A 1.2A, 65V DMOS power switch is integrated along with all high voltage circuitry and control logic into a 5-lead ThinSOT™ package.
The LT8301 operates from an input voltage range of 2.7V to 42V and can deliver up to 6W of isolated output power. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery.
Applications
- Isolated Telecom, Automotive, Industrial, Medical Power Supplies
- Isolated Auxiliary/Housekeeping Power Supplies
Documentation
Data Sheet 1
User Guide 1
Application Note 2
Technical Articles 6
Video 2
Brochure 2
Product Selector Card 1
Rarely Asked Question 1
Webcast 3
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 |
|---|---|---|---|
| LT8301ES5#TRMPBF | 5-Lead TSOT-23 | ||
| LT8301ES5#TRPBF | 5-Lead TSOT-23 | ||
| LT8301ES5#WTRMPBF | 5-Lead TSOT-23 | ||
| LT8301ES5#WTRPBF | 5-Lead TSOT-23 | ||
| LT8301HS5#TRMPBF | 5-Lead TSOT-23 | ||
| LT8301HS5#TRPBF | 5-Lead TSOT-23 | ||
| LT8301HS5#WTRMPBF | 5-Lead TSOT-23 | ||
| LT8301HS5#WTRPBF | 5-Lead TSOT-23 | ||
| LT8301IS5#TRMPBF | 5-Lead TSOT-23 | ||
| LT8301IS5#TRPBF | 5-Lead TSOT-23 | ||
| LT8301IS5#WTRMPBF | 5-Lead TSOT-23 | ||
| LT8301IS5#WTRPBF | 5-Lead TSOT-23 | ||
| LT8301JS5#TRMPBF | 5-Lead TSOT-23 | ||
| LT8301JS5#TRPBF | 5-Lead TSOT-23 | ||
| LT8301JS5#WTRMPBF | 5-Lead TSOT-23 | ||
| LT8301JS5#WTRPBF | 5-Lead TSOT-23 | ||
| LT8301MPS5#TRMPBF | 5-Lead TSOT-23 | ||
| LT8301MPS5#TRPBF | 5-Lead TSOT-23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 11, 2019 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process |
||
| LT8301ES5#TRMPBF | PRODUCTION | |
| LT8301ES5#TRPBF | PRODUCTION | |
| LT8301ES5#WTRMPBF | PRODUCTION | |
| LT8301ES5#WTRPBF | PRODUCTION | |
| LT8301HS5#TRMPBF | PRODUCTION | |
| LT8301HS5#TRPBF | PRODUCTION | |
| LT8301HS5#WTRMPBF | PRODUCTION | |
| LT8301HS5#WTRPBF | PRODUCTION | |
| LT8301IS5#TRMPBF | PRODUCTION | |
| LT8301IS5#TRPBF | PRODUCTION | |
| LT8301IS5#WTRMPBF | PRODUCTION | |
| LT8301IS5#WTRPBF | PRODUCTION | |
| LT8301MPS5#TRMPBF | PRODUCTION | |
| LT8301MPS5#TRPBF | 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 |
|---|---|---|
| Hot Swap Controllers 1 | ||
| LT4363 | RECOMMENDED FOR NEW DESIGNS | High Voltage Surge Stopper with Current Limit |
| Ideal Diodes and PowerPath Controllers 1 | ||
|
LT4320 LT4320-1 |
Ideal Diode Bridge Controller | |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LT8302/LT8302-3 | 42VIN Micropower No-Opto Isolated Flyback Converter with 65V/3.6A Switch |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT8301
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.
