LTC3426
RECOMMENDED FOR NEW DESIGNS1.2MHz Step-Up DC/DC Converter in SOT-23
- Part Models
- 2
- 1ku List Price
- Starting From $3.01
Overview
- Internal 2A MOSFET Switch
- 1.2MHz Switching Frequency
- Integrated Soft-Start
- Low 1.6V VIN Operation
- Low RDS(ON) Switch: 100mΩ at 5V Output
- Delivers 5V at 800mA from a 3.3V Input
- Delivers 3.3V at 800mA from a 2.5V Input
- Uses Small, Low Profile External Components
- Low Profile (1mm) SOT-23 (ThinSOTTM) Package
The LTC3426 step-up switching regulator generates an output voltage of up to 5.5V from an input voltage as low as 1.6V. Ideal for applications where space is limited, it switches at 1.2MHz, allowing the use of tiny, low cost and low profile external components. Its internal 2A, 100mΩ NMOS switch provides high efficiency even at heavy load, while the constant frequency, current mode architecture results in low, predictable output noise that is easy to filter.
Anti-ringing circuitry reduces EMI concerns by damping the inductor while in discontinuous mode, and internal soft-start eases inrush current worries. Internal frequency compensation is designed to accommodate ceramic output capacitors, further reducing noise. The device features very low shutdown current of 0.5µA.
The LTC3426 is available in the 6-lead SOT-23 package.
Protected by U.S. Patents, including 6498466, 6611131
Applications
- White LED Driver Supply
- Local 3.3V or 5V Supply
- Battery Back-Up
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Press Release 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 |
|---|---|---|---|
| LTC3426ES6#TRMPBF | 6-Lead TSOT-23 | ||
| LTC3426ES6#TRPBF | 6-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- LTC3426
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
Reference Designs
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