LT3464 - Micropower Boost Converter with Integrated Schottky and Output Disconnect in ThinSOT
Features
- Tiny Solution Size
- Low Quiescent Current
•25µA in Active Mode
•0.5µA in Shutdown Mode - Internal 115mA, 36V Switch
- Integrated Schottky Diode
- Integrated PNP Output Disconnect with Short-Circuit Protection
- Internal Reference Override Pin
- 16V at 8mA from 3.6V Input
- 12V at 20mA from 5V Input
- Input Range: 2.3V to 10V
- High Output Voltage: Up to 34V
- Low Profile (1mm) SOT-23 Package
Typical Application
Description
The LT3464 is a micropower step-up DC/DC converter with integrated Schottky diode and output disconnect packaged in an 8-lead low profile (1mm) SOT-23. The small package size, high level of integration, and the use of tiny SMT components yield a solution size of less than 40mm². The LT3464 has a typical current limit of 115mA as well as fast switching speed to allow the use of a chip inductor and small ceramic capacitors. The internal PNP disconnects the output load from the input during shutdown, and also provides output short-circuit protection. An auxiliary reference input allows the user to override the internal 1.25V feedback reference with any lower value, allowing full control of the output voltage during operation. This device features a low 25µA quiescent current, which is further reduced to less than 0.5µA in shutdown. A current limited fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of operating current. The rugged 36V switch and output disconnect circuitry allow outputs up to 34V to be easily generated in a simple boost topology.
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 |
|---|---|---|---|---|---|
| LT3464ETS8#PBF | SOT-23 | TS8 | E | 05-08-1637 | Yes |
| LT3464ETS8#TRMPBF | SOT-23 | TS8 | E | 05-08-1637 | Yes |
| LT3464ETS8#TRPBF | SOT-23 | TS8 | E | 05-08-1637 | 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 | |
|---|---|---|---|---|---|---|
| LT3464ETS8#PBF | SOT-23 | E | $2.29 | Yes | ||
| LT3464ETS8#TRMPBF | SOT-23 | E | $2.29 | $1.58 | Yes | |
| LT3464ETS8#TRPBF | SOT-23 | E | $2.29 | $1.56 | 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 |
|---|---|---|---|
| DC612A | LT3464ETS8 Demo Board | 2 Circuits, 2.3V ≤ VIN ≤ 10V, Vout1 = 20V @ 3-6mA, Vout2 = 15V @ 9-25mA | $75.00 | |
| Buy Now | |||
Applications
- OEL Panel Bias
- LCD Bias
- Handheld Computers
- Battery Backup
- Digital Cameras
- Cellular Phones
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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
Models for the following parts are available in LTspice:
LT3464
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.
