LT8312 - Boost Controller with Power Factor Correction
Features
- PFC Boost with Minimum Number of External Components
- VIN and VOUT Limited Only by External Components
- Active Power Factor Correction
- Low Harmonic Distortion
- Overvoltage Protection
- Energy Star Compliant (<0.5W No-Load Operation)
- 16-Lead MSOP Package
Typical Application
Description
The LT®8312 is a power factor correction (PFC) boost controller. A LT8312-based design can achieve a power factor of greater than 0.99 by actively modulating the input current, allowing compliance with most Harmonic Current Emission requirements.
The LT8312 is well suited for a wide variety of off-line applications. The input range can be scaled up or down, depending mainly on the choice of external components. Efficiencies higher than 95% can be achieved with output power levels up to 250W.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LT8312EMS#PBF | MS-16 | MS | E | 05-08-1669 | Yes |
| LT8312EMS#TRPBF | MS-16 | MS | E | 05-08-1669 | Yes |
| LT8312HMS#PBF | MS-16 | MS | H | 05-08-1669 | Yes |
| LT8312HMS#TRPBF | MS-16 | MS | H | 05-08-1669 | Yes |
| LT8312IMS#PBF | MS-16 | MS | I | 05-08-1669 | Yes |
| LT8312IMS#TRPBF | MS-16 | MS | I | 05-08-1669 | Yes |
| LT8312MPMS#PBF | MS-16 | MS | MP | 05-08-1669 | Yes |
| LT8312MPMS#TRPBF | MS-16 | MS | MP | 05-08-1669 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT8312EMS#PBF | MS-16 | E | $3.22 | $2.25 | Yes | |
| LT8312EMS#TRPBF | MS-16 | E | $2.31 | Yes | ||
| LT8312HMS#PBF | MS-16 | H | $4.11 | $2.88 | Yes | |
| LT8312HMS#TRPBF | MS-16 | H | $2.94 | Yes | ||
| LT8312IMS#PBF | MS-16 | I | $3.70 | $2.59 | Yes | |
| LT8312IMS#TRPBF | MS-16 | I | $2.65 | Yes | ||
| LT8312MPMS#PBF | MS-16 | MP | $10.07 | $7.05 | Yes | |
| LT8312MPMS#TRPBF | MS-16 | MP | $7.11 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC2104A | LT8312EMS Demo Board | Boost Controller with PFC, 90VAC ≤ VIN ≤ 265VAC; VOUT = 400Vdc @ 0.375A | $200.00 | |
| Buy Now | |||
Applications
- Industrial
- Aviation
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Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
To launch a ready to run LTspice demonstration circuit for this part:
- Step 1: If you have not installed LTspice on this computer, download and install LTspice
- Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
- Step 3: If LTspice does not automatically open after clicking the link above, you can instead run the simulation by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTspice and open the demonstration circuit by selecting 'Open' from the 'File' menu
To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.
Models for the following parts are available in LTspice:
LT8312
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
