LTC3459
RECOMMENDED FOR NEW DESIGNS10V Micropower Synchronous Boost Converter in ThinSOT
- Part Models
- 6
- 1ku List Price
- Starting From $3.33
Overview
- Small Solution Size
- >85% Efficiency over Wide Load Range
- Internal Synchronous Rectifier
- VIN Range: 1.5V to 5.5V
- 5V at 30mA from 3.3V Input
- 3.3V at 20mA from 2 AA Cell Input
- Programmable Output Voltages Up to 10V
- Burst Mode Operation
- Inrush Current Limiting
- Output Disconnect in Shutdown
- Ultralow Quiescent (10µA) and Shutdown (<1µA) Currents
- Low Profile 2mm × 2mm DFN, 2mm × 3mm DFN or SOT-23 Package
The LTC3459 is a low current, high efficiency synchronous boost converter intended for low power, size constrained portable applications. The LTC3459 can be powered from a single lithium ion battery, a 2- to 3-cell stack of Alkaline or Nickel batteries, or any low impedance voltage source between 1.5V and 5.5V. The output is programmable via an external divider between 2.5V and 10V. Although the part is primarily intended for boost applications, VOUT will maintain regulation below VIN (at reduced efficiency).
The LTC3459 offers Burst Mode operation with a fixed peak current, providing high conversion efficiency over a wide range of load currents. During start-up, inductor current is controlled preventing the inrush surge current found in many boost converters. In shutdown the output is disconnected from the input and quiescent current is reduced to <1µA.
The LTC3459 is offered in low profile 6-pin 2mm × 2mm DFN, 2mm × 3mm DFN or SOT-23 (ThinSOT) packages, allowing a tiny footprint for the total solution.
Applications
- General Purpose Micropower Boost
- Digital Cameras
- PDAs
- LCD Bias
- Small OLED Displays
- Supercap Charging
Documentation
Data Sheet 1
User Guide 3
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 |
|---|---|---|---|
| LTC3459EDC#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3459EDC#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3459EDCB#TRMPBF | 6-Lead DFN (2mm x 3mm w/ EP) | ||
| LTC3459EDCB#TRPBF | 6-Lead DFN (2mm x 3mm w/ EP) | ||
| LTC3459ES6#TRMPBF | 6-Lead TSOT-23 | ||
| LTC3459ES6#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:
- LTC3459
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
24-Bit Data Acquisition System for IEPE Sensors
Part Used
Resources
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