LT3495

PRODUCTION

LT3495

650mA Micropower Low Noise Boost Converter with Output Disconnect

PRODUCTION

OLED Power Supply from One Li-Ion Cell slide

Output Voltage Ripple vs Load Current slide

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Part Models 8

1ku List Price Starting From $2.12

Features

Low Quiescent Current
- 60μA in Active Mode
- 0.1μA in Shutdown Mode
Low Noise Control Scheme (Switching Frequency Always Stays Above Audible Range for LT3495/-1)
Integrated Power NPN:
- 650mA Current Limit (LT3495/B)
- 350mA Current Limit (LT3495-1/B-1)
Integrated Output Disconnect
Integrated Output Dimming
Wide input range: 2.5V to 16V
Wide output range: Up to 40V
Integrated feedback resistor
Tiny 10-Lead 3mm × 2mm DFN Package

Additional Details

The LT3495/LT3495B/LT3495-1/LT3495B-1 are low noise boost converters with integrated power switch, feedback resistor and output disconnect circuitry. The parts control power delivery by varying both the peak inductor current and switch off-time. This novel* control scheme results in low output voltage ripple as well as high efficiency over a wide load range. For the LT3495/LT3495-1, the off-time of the switch is not allowed to exceed a ﬁxed level, guaranteeing the switching frequency stays above the audio band for the entire load range. The parts feature a high performance NPN power switch with a 650mA and 350mA current limit for the LT3495/LT3495B and LT3495-1/LT3495B-1 respectively. The quiescent current is a low 60μA, which is further reduced to 0.1μA in shutdown. The internal disconnect circuitry allows the output voltage to be isolated from the input during shutdown. An auxiliary reference input (CTRL pin) overrides the internal 1.235V feedback reference with any lower value allowing full control of the output voltage during operation. The LT3495 series are available in a tiny 10-lead 3mm × 2mm DFN package.

Applications

OLED Power
Low Noise Power
MP3 Player

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 8

1ku List Price Starting From $2.12

Technical Documents 3

LT3495: 650mA Micropower Low Noise Boost Converter with Output Disconnect Data Sheet 06/27/2013

R530 Reliability Data 03/26/2018

DC1219A - Demo Manual 09/24/2009

Design Resources 8

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
LT3495BEDDB#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3495BEDDB#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3495BEDDB-1#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3495BEDDB-1#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3495EDDB#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3495EDDB#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3495EDDB-1#TRMPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT3495EDDB-1#TRPBF	10-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LT3495BEDDB#TRMPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT3495BEDDB#TRPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT3495BEDDB-1#TRMPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT3495BEDDB-1#TRPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT3495EDDB#TRMPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT3495EDDB#TRPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT3495EDDB-1#TRMPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LT3495EDDB-1#TRPBF
Pin/Package Drawing
10-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

Companion Parts 2

Parts	Product Life Cycle	Description
Dual-Supply Monitors1
LTC2960	RECOMMENDED FOR NEW DESIGNS	36V Nano-Current Two-Input Voltage Monitor
Surge Stopper, Overvoltage, and Overcurrent Protection1
LTC4365	RECOMMENDED FOR NEW DESIGNS	Overvoltage, Undervoltage and Reverse Supply Protection Controller

DC1219A-C

LT3495EDDB-1 Demo Board | Micropower 3-6VIN to 15VOUT at 36mA

DC1219A-C

LT3495EDDB-1 Demo Board | Micropower 3-6VIN to 15VOUT at 36mA

Buy Now View Details

Product Detail

Demonstration circuit 1219A-A, A-B, A-C and A-D are micropower low noise boost converters with output disconnect featuring the four different LT3495 versions: LT3495 (0.65A switch current, switching frequency above audible range), LT3495B (0.65A switch current), LT3495-1 (0.35 switch current, switching frequency above audible range) and LT3495B-1 (0.35A switch current). All versions convert a 3V-6V source to 15V. The A-A and A-B versions supply 75mA at 3V_IN, while the A-C and A-D supply 36mA.

All versions feature a low noise control scheme, integrated output disconnect function, dimming control and a single output sense resistor.

Resources

ZIP

DC1219A - Design File

529.00K

PDF

DC1219A - Demo Manual

389.00K

PDF

DC1219A - Schematic

27.00K

DC1219A-D

LT3495BEDDB-1 Demo Board | 3-6VIN to 15VOUT at 36mA

LT3495BEDDB-1 Demo Board | 3-6VIN to 15VOUT at 36mA

Download

DC1219A-D

LT3495BEDDB-1 Demo Board | 3-6VIN to 15VOUT at 36mA

Buy Now View Details

Product Detail

All versions feature a low noise control scheme, integrated output disconnect function, dimming control and a single output sense resistor.

Resources

ZIP

DC1219A - Design File

529.00K

PDF

DC1219A - Demo Manual

389.00K

PDF

DC1219A - Schematic

27.00K

DC1219A-A

LT3495EDDB Demo Board | 3-6VIN to 15VOUT at 75mA

DC1219A-A

LT3495EDDB Demo Board | 3-6VIN to 15VOUT at 75mA

Buy Now View Details

Product Detail

All versions feature a low noise control scheme, integrated output disconnect function, dimming control and a single output sense resistor.

Resources

ZIP

DC1219A - Design File

529.00K

PDF

DC1219A - Demo Manual

389.00K

PDF

DC1219A - Schematic

27.00K

DC1219A-B

LT3495BEDDB Demo Board | Micropower 3-6VIN to 15VOUT at 75mA

DC1219A-B

LT3495BEDDB Demo Board | Micropower 3-6VIN to 15VOUT at 75mA

Buy Now View Details

Product Detail

All versions feature a low noise control scheme, integrated output disconnect function, dimming control and a single output sense resistor.

Resources

ZIP

DC1219A - Design File

529.00K

PDF

DC1219A - Demo Manual

389.00K

PDF

DC1219A - Schematic

27.00K

DC1219A-C

LT3495EDDB-1 Demo Board | Micropower 3-6VIN to 15VOUT at 36mA

DC1219A-D

LT3495BEDDB-1 Demo Board | 3-6VIN to 15VOUT at 36mA

DC1219A-A

LT3495EDDB Demo Board | 3-6VIN to 15VOUT at 75mA

DC1219A-B

LT3495BEDDB Demo Board | Micropower 3-6VIN to 15VOUT at 75mA

LTspice 5

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.