LT8580
RECOMMENDED FOR NEW DESIGNSBoost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchronization
- Part Models
- 16
- 1ku List Price
- Starting From $3.60
Overview
- 1A, 65V Power Switch
- Adjustable Switching Frequency
- Single Feedback Resistor Sets VOUT
- Synchronizable to External Clock
- High Gain SHDN Pin Accepts Slowly Varying Input Signals
- Wide Input Voltage Range: 2.55V to 40V
- Low VCESAT Switch: 400mV at 0.75A (Typical)
- Integrated Soft-Start Function
- Easily Configurable as a Boost, SEPIC, or Inverting Converter
- User Configurable Undervoltage Lockout (UVLO)
- Pin Compatible with LT3580
- Tiny Thermally Enhanced 8-Lead 3mm × 3mm DFN and 8-Lead MSOP Packages
- AEC-Q100 Qualified for Automotive Applications
The LT8580 is a PWM DC/DC converter containing an internal 1A, 65V switch. The LT8580 can be configured as either a boost, SEPIC or inverting converter.
The LT8580 has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT8580 can be synchronized to an external clock. The switching frequency of the part may be free running or synchronized, and can be set between 200kHz and 1.5MHz.
The LT8580 also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.
Additional features such as frequency foldback and soft-start are integrated. The LT8580 is available in tiny thermally enhanced 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.
APPLICATIONS
- VFD Bias Supplies
- TFT-LCD Bias Supplies
- GPS Receivers
- DSL Modems
- Local Power Supply
Documentation
Data Sheet 1
User Guide 1
Technical Articles 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 |
|---|---|---|---|
| LT8580EDD#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT8580EDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT8580EMS8E#PBF | 8-Lead MSOP w/ EP | ||
| LT8580EMS8E#TRPBF | 8-Lead MSOP w/ EP | ||
| LT8580EMS8E#WPBF | 8-Lead MSOP w/ EP | ||
| LT8580EMS8E#WTRPBF | 8-Lead MSOP w/ EP | ||
| LT8580HDD#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT8580HDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT8580HMS8E#PBF | 8-Lead MSOP w/ EP | ||
| LT8580HMS8E#TRPBF | 8-Lead MSOP w/ EP | ||
| LT8580IDD#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT8580IDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT8580IMS8E#PBF | 8-Lead MSOP w/ EP | ||
| LT8580IMS8E#TRPBF | 8-Lead MSOP w/ EP | ||
| LT8580IMS8E#WPBF | 8-Lead MSOP w/ EP | ||
| LT8580IMS8E#WTRPBF | 8-Lead MSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 17, 2025 - 25_0043 Change of Gold to Copper Wire and BOM (Automotive) |
||
| LT8580EDD#PBF | PRODUCTION | |
| LT8580EDD#TRPBF | PRODUCTION | |
|
Apr 17, 2025 - 25_0119 Bond Wire Change from Gold to Copper (Automotive) |
||
| LT8580EMS8E#PBF | PRODUCTION | |
| LT8580EMS8E#TRPBF | PRODUCTION | |
| LT8580HMS8E#PBF | PRODUCTION | |
| LT8580HMS8E#TRPBF | PRODUCTION | |
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LT8580EMS8E#PBF | PRODUCTION | |
| LT8580EMS8E#TRPBF | PRODUCTION | |
| LT8580HMS8E#PBF | PRODUCTION | |
| LT8580HMS8E#TRPBF | PRODUCTION | |
| LT8580IMS8E#PBF | PRODUCTION | |
| LT8580IMS8E#TRPBF | PRODUCTION | |
|
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LT8580EMS8E#PBF | PRODUCTION | |
| LT8580EMS8E#TRPBF | PRODUCTION | |
| LT8580EMS8E#WPBF | PRODUCTION | |
| LT8580EMS8E#WTRPBF | PRODUCTION | |
| LT8580HMS8E#PBF | PRODUCTION | |
| LT8580HMS8E#TRPBF | PRODUCTION | |
| LT8580IMS8E#PBF | PRODUCTION | |
| LT8580IMS8E#TRPBF | PRODUCTION | |
| LT8580IMS8E#WPBF | PRODUCTION | |
| LT8580IMS8E#WTRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package |
||
| LT8580EMS8E#WPBF | PRODUCTION | |
| LT8580EMS8E#WTRPBF | PRODUCTION | |
| LT8580IMS8E#WPBF | PRODUCTION | |
| LT8580IMS8E#WTRPBF | PRODUCTION | |
|
Jun 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices |
||
| LT8580EMS8E#WPBF | PRODUCTION | |
| LT8580EMS8E#WTRPBF | PRODUCTION | |
|
Apr 18, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices |
||
| LT8580IMS8E#WPBF | PRODUCTION | |
| LT8580IMS8E#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 |
|---|---|---|
| Switching Regulators & Controllers 1 | ||
| LT8330 | RECOMMENDED FOR NEW DESIGNS | Low IQ Boost/SEPIC/Inverting Converter with 1A, 60V Switch |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LT3580 | PRODUCTION | Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT8580
LTpowerCAD 1
Design tools for the following parts are available in LTpowerCAD:
- LT8580
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.
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
