LT3464

PRODUCTION

Micropower Boost Converter with Integrated Schottky and Output Disconnect in ThinSOT^™

Part Models: 2
1ku List Price: Starting From $2.05

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Overview

Tiny Solution Size
Low Quiescent Current
- 25µA in Active Mode
- 0.5µA in Shutdown Mode
Internal 115mA, 36V Switch
Integrated Schottky Diode
Integrated PNP Output Disconnect with Short-Circuit Protection
Internal Reference Override Pin
16V at 8mA from 3.6V Input
12V at 20mA from 5V Input
Input Range: 2.3V to 10V
High Output Voltage: Up to 34V
Low Profile (1mm) SOT-23 Package

The LT3464 is a micropower step-up DC/DC converter with integrated Schottky diode and output disconnect packaged in an 8-lead low profile (1mm) SOT-23. The small package size, high level of integration, and the use of tiny SMT components yield a solution size of less than 40mm². The LT3464 has a typical current limit of 115mA as well as fast switching speed to allow the use of a chip inductor and small ceramic capacitors. The internal PNP disconnects the output load from the input during shutdown, and also provides output short-circuit protection. An auxiliary reference input allows the user to override the internal 1.25V feedback reference with any lower value, allowing full control of the output voltage during operation. This device features a low 25µA quiescent current, which is further reduced to less than 0.5µA in shutdown. A current limited fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of operating current. The rugged 36V switch and output disconnect circuitry allow outputs up to 34V to be easily generated in a simple boost topology.

Applications

OEL Panel Bias
LCD Bias
Handheld Computers
Battery Backup
Digital Cameras
Cellular Phones

Part Models: 2
1ku List Price: Starting From $2.05

Documentation

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
LT3464ETS8#TRMPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3464ETS8#TRPBF	8-Lead SOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LT3464

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

LT3464ETS8 Demo Board | 2 Circuits, 2.3V ≤ VIN ≤ 10V, VOUT1 = 20V @ 3mA to 6mA, VOUT2 = 15V @ 9mA to 25mA

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Product Details

Demonstration circuit 612 features the LT3464ETS8 in two boost converter circuits, one configured for small size and the other for high performance. The input supply voltage range is 2.3V to 10V and the two circuit outputs are 20V at up to 6mA (small size circuit) and 15V at up to 25mA (high performance circuit). The small size circuit demonstrates the LT3464s ability to operate with a small 10µH chip inductor and a 0.22µF output capacitor. The high performance circuit uses a 47µH inductor and 1.0µF output capacitor and provides higher output current and efficiency.