LTC3426
Info : RECOMMENDED FOR NEW DESIGNS
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LTC3426

1.2MHz Step-Up DC/DC Converter in SOT-23

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Models 2
1ku List Price Starting From $2.37
Features
  • 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
Additional Details
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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
Part Models 2
1ku List Price Starting From $2.37

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Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC3426ES6#TRMPBF
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LTC3426ES6#TRPBF
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Software & Part Ecosystem

Evaluation Kits 1

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DC692A

LTC3426ES6 Demo Board | 1.2MHz, VIN=1.8V to 4.2V, VOUT=5V@400mA-800mA

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DC692A

LTC3426ES6 Demo Board | 1.2MHz, VIN=1.8V to 4.2V, VOUT=5V@400mA-800mA

LTC3426ES6 Demo Board | 1.2MHz, VIN=1.8V to 4.2V, VOUT=5V@400mA-800mA

Product Detail

Demonstration circuit 692 is a high efficiency 1.2MHz boost DC/DC converter featuring the LTC3426ES6. The board is capable of supplying 5V at 400mA from 1.8V to input. It can deliver 5V at 800mA from a 3.3V input. The converter has internal soft start and internal frequency compensation features.



Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, 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.

Reference Designs 1

NOVPED iMX6 QP Dev Kit

NXP iMX6 Platform EVK Hardware Verified Design for IO and Robust Power Supply

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NXP NOVPED iMX6 QP

NXP iMX6 Platform EVK Hardware Verified Design for IO and Robust Power Supply

NXP NOVPED iMX6 QP

Circuits from the lab

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NXP iMX6 Platform EVK Hardware Verified Design for IO and Robust Power Supply

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

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