LT8415

PRODUCTION

Ultralow Power Boost Converter with Dual Half-Bridge Switches

Part Models: 4
1ku List Price: Starting From $2.89

Viewing:

Overview

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

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

Part Models: 4
1ku List Price: Starting From $2.89

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

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

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Tools & Simulations

LTspice 1

LT8415 Demo Circuit - 25mA, Ultralow Power Boost Converter with Dual Half-Bridge Switches (3.6V to 16V @ 1.6mA)

Models for the following parts are available in LTspice:

LT8415

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.