Overview
Features and Benefits
- 1.3MHz Switching Frequency (LT3467)
- 2.1MHz Switching Frequency (LT3467A)
- Low VCESAT Switch: 330mV at 1.1A
- High Output Voltage: Up to 40V
- Wide Input Range: 2.4V to 16V
- Dedicated Soft-Start Pin
- 5V at 540mA from 3.3V Input (LT3467)
- 5V at 430mA from 3.3V Input (LT3467A)
- 12V at 270mA from 5V Input (LT3467)
- 12V at 260mA from 5V Input (LT3467A)
- Uses Small Surface Mount Components
- Low Shutdown Current: <1μA
- Pin-for-Pin Compatible with the LT1930 and LT1613
- Low Profile (1mm) ThinSOT™ Package
- Low Profile (0.75mm) 8-Lead (3mm × 2mm) DFN Package
- AEC-Q100 Qualified for Automotive Applications
Product Details
The LT3467/LT3467A switching regulators combine a 42V, 1.1A switch with a soft-start function. Pin compatible with the LT1930, its low VCESAT bipolar switch enables the device to deliver high current outputs in a small footprint. The LT3467 switches at 1.3MHz, allowing the use of tiny, low cost and low height inductors and capacitors. The LT3467A switches at 2.1MHz, allowing the use of even smaller components. High inrush current at start-up is eliminated using the programmable soft-start function. A single external capacitor sets the current ramp rate. A constant frequency current mode PWM architecture results in low, predictable output noise that is easy to filter.
The high voltage switch on the LT3467/LT3467A is rated at 42V, making the devices ideal for boost converters up to 40V as well as SEPIC and flyback designs. The LT3467 can generate 5V at up to 540mA from a 3.3V supply or 5V at 450mA from four alkaline cells in a SEPIC design. The LT3467A can generate 5V at up to 430mA from a 3.3V supply or 15V at 135mA from a 3.3V supply. The LT3467/LT3467A are available in a low profile (1mm) 6-lead SOT-23 package and tiny 3mm × 2mm DFN package.
| Switching Frequency | |
| LT3467 | 1.3MHz |
| LT3467A | 2.1MHz |
APPLICATIONS
- Digital Cameras
- White LED Power Supplies
- Cellular Phones
- Medical Diagnostic Equipment
- Local 5V or 12V Supplies
- TFT-LCD Bias Supplies
- xDSL Power Supplies
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
-
R458 Reliability Data3/22/2018PDF31 K
-
DN365 - ThinSOT Switching Regulator Controls Inrush Current3/26/2014PDF108K
-
1.1A Boost Provides Soft-Start Capability in Tiny ThinSOT Package8/1/2004 LT Journal
Tools & Simulations
LTspice
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.
LTspice Simulations
Models for the following parts are available in LTspice:
LT3467
LT3467A
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LT3467AEDDB#TRMPBF | Material Declaration | Reliability Data | 8-Lead DFN (3mm x 2mm w/ EP) | |
| LT3467AEDDB#TRPBF | Material Declaration | Reliability Data | 8-Lead DFN (3mm x 2mm w/ EP) | |
| LT3467AES6#TRMPBF | Material Declaration | Reliability Data | 6-Lead TSOT-23 | |
| LT3467AES6#TRPBF | Material Declaration | Reliability Data | 6-Lead TSOT-23 | |
| LT3467AIDDB#TRMPBF | Material Declaration | Reliability Data | 8-Lead DFN (3mm x 2mm w/ EP) | |
| LT3467AIDDB#TRPBF | Material Declaration | Reliability Data | 8-Lead DFN (3mm x 2mm w/ EP) | |
| LT3467AIS6#TRMPBF | Material Declaration | Reliability Data | 6-Lead TSOT-23 | |
| LT3467AIS6#TRPBF | Material Declaration | Reliability Data | 6-Lead TSOT-23 | |
| LT3467AIS6#WTRMPBF | Material Declaration | Reliability Data | 6-Lead TSOT-23 | |
| LT3467AIS6#WTRPBF | Material Declaration | Reliability Data | 6-Lead TSOT-23 | |
| Wafer Fabrication Data | R458 Reliability Data |
Sample & Buy
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Sampling
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