LT3461A
PRODUCTION3MHz Step-Up DC/DC Converters with Integrated Schottky in ThinSOT
- Part Models
- 2
- 1ku List Price
- Starting From $2.82
Overview
- Integrated Schottky Rectifier
- Fixed Frequency 1.3MHz/3MHz Operation
- High Output Voltage: Up to 38V
- Low VCESAT Switch: 260mV at 250mA
- 12V at 70mA from 5V Input
- 5V at 115mA from 3.3V Input
- Wide Input Range: 2.5V to 16V
- Uses Small Surface Mount Components
- Low Shutdown Current: <1µA
- Soft-Start
- Low Profile (1mm) SOT-23 (ThinSOTTM) Package
The LT3461/LT3461A are general purpose fixed frequency current mode step-up DC/DC converters. Both devices feature an integrated Schottky and a low VCESAT switch allowing a small converter footprint and lower parts cost. The LT3461 switches at 1.3MHz while the LT3461A switches at 3MHz. These high switching frequencies enable the use of tiny, low cost and low height capacitors and inductors. The constant switching frequency results in predictable output noise that is easy to filter, and the inductor based topology ensures an input free from switching noise typically present with charge pump solutions. The high voltage switch in the LT3461/LT3461A is rated at 40V making the device ideal for boost converters up to 38V.
The LT3461/LT3461A are available in a low profile (1mm) SOT-23 package.
| Switching Frequency | |
| LT3461 | 1.3MHz |
| LT3461A | 3MHz |
Applications
- Digital Cameras
- CCD Bias Supply
- XDSL Power Supply
- TFT-LCD Bias Supply
- Local 5V or 12V Supply
- Medical Diagnostic Equipment
- Battery Backup
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Brochure 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 |
|---|---|---|---|
| LT3461AES6#TRMPBF | 6-Lead TSOT-23 | ||
| LT3461AES6#TRPBF | 6-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LT3461
- LT3461A
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
LT3461AES6 Demo Board | 3MHz, VIN = 3V to 6V, VOUT = 12V, (at VIN = 5V, IOUT = 70mA)