LT8415

PRODUCTION

LT8415

Ultralow Power Boost Converter with Dual Half-Bridge Switches

PRODUCTION

Part Details

Drive External Capacitors to 34V/0V with the LT8415 slide

Response Driving External Capacitors slide

Drive External Capacitors to 34V/0V with the LT8415

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Part Models 4

1ku List Price Starting From $2.89

Features

High Voltage Switches Built in (Dual half-bridge)
Ultralow Quiescent Current
10.5μA in Active Mode
0μA in Shutdown Mode
Comparator Built into SHDN pin
Low Noise Control Scheme
Adjustable FB reference voltage
Wide Input Range: 2.5V to 16V
Wide Output Range: Up to 40V
Integrated Power NPN Switch (25mA Current Limit)
Integrated Schottky Diode
Integrated Output Disconnect
High Value (12.4M/0.4M) Feedback Resistor Integrated
Built in Soft Start (Optional Capacitor from V_REF to GND)
Over Voltage Protection for CAP, V_OUT, OUT1 and OUT2 Pins
12-Pin 3mm × 2mm DFN package

Additional Details

The LT8415 is an ultralow power boost converter with two integrated complementary MOSFET half-bridges (N- and P-channel), integrated power switch, Schottky diode and output disconnect circuitry. The N-channel and P-channel MOSFETs in each half-bridge are synchronously controlled by a single input pin, and never turn on at the same time in typical applications.

The boost regulator controls power delivery by varying both the peak inductor current and switch off-time. This control scheme results in low output voltage ripple as well as high efficiency over a wide load range. The quiescent current is a low 10.5μA, which is further reduced to 0μA in shutdown. The internal disconnect circuitry allows the output voltage to be blocked from the input during shutdown. High value (12.4M/0.4M) resistors are integrated on chip for output voltage detection, significantly reducing input referred quiescent current. The LT8415 also features a comparator built into the SHDN pin, overvoltage protection for the CAP, V_OUT, OUT1 and OUT2 pins, built in soft start and comes in a tiny 12-pin 3mm × 2mm DFN package.

Applications

Sensor Power
RF Mems Relay Power
Low Power Actuator Bias/Control
Liquid Lens Driver

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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 4

1ku List Price Starting From $2.89

Documentation

Technical Documents 3

LT8415: Ultralow Power Boost Converter with Dual Half-Bridge Switches Data Sheet 03/22/2016

R530 Reliability Data 03/26/2018

DC1449A - Demo Manual 09/24/2009

Design Resources 4

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
LT8415EDDB#TRMPBF	12-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8415EDDB#TRPBF	12-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8415IDDB#TRMPBF	12-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LT8415IDDB#TRPBF	12-Lead DFN (3mm x 2mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LT8415EDDB#TRMPBF
Pin/Package Drawing
12-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT8415EDDB#TRPBF
Pin/Package Drawing
12-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT8415IDDB#TRMPBF
Pin/Package Drawing
12-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LT8415IDDB#TRPBF
Pin/Package Drawing
12-Lead DFN (3mm x 2mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

Software & Part Ecosystem

Evaluation Kit

DC1449A

LT8415EDDB Demo Board | Ultralow Power Boost Converter with Dual Half-Bridge Switches

DC1449A

LT8415EDDB Demo Board | Ultralow Power Boost Converter with Dual Half-Bridge Switches

Buy Now View Details

Product Detail

DC1449A: Demo Board for the LT8415 Ultralow Power Boost Converter with Dual Half-Bridge Switches.

Resources

PDF

DC1449A - Demo Manual

292.00K

ZIP

DC1449A - Design File

517.00K

PDF

DC1449A - Schematic

31.00K

DC1449A

LT8415EDDB Demo Board | Ultralow Power Boost Converter with Dual Half-Bridge Switches

Tools & Simulations

LTspice 2

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.