LTC3101

RECOMMENDED FOR NEW DESIGNS

LTC3101

Wide V_IN, Multi-Output DC/DC Converter and PowerPath Controller

RECOMMENDED FOR NEW DESIGNS

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Part Models 2

1ku List Price Starting From $4.72

Features

Low Loss PowerPath^™ Control: Seamless, Automatic Transition from Battery to USB or Wall Adapter Power
Wide V_IN Range: 1.8V to 5.5V
Buck-Boost V_OUT: 1.5V to 5.25V
Buck-Boost Generates 3.3V at 300mA for V_IN ≥ 1.8V, 3.3V at 800mA for V_IN ≥ 3V
Dual 350mA Buck Regulators, V_OUT: 0.6V to V_IN
38μA Quiescent Current in Burst Mode^® Operation
1.8V, 50mA Always-On LDO
Protected 100mA Hot Swap^™ Output
Pushbutton On/Off Control
Current Limited 200mA MAX Output
Programmable Power-Up Sequencing
24-lead 4mm × 4mm × 0.75mm QFN Package

Additional Details

The LTC3101 is a complete power management solution for low power portable devices. It provides three high efficiency switching DC/DC converters which seamlessly transition from battery to USB/wall adapter power when available. A synchronous buck-boost regulator provides complete flexibility, allowing operation from a single Li-Ion/Polymer battery, 2 to 3 AA cells, a USB port or any other power source operating from 1.8V to 5.5V.

Two always-alive outputs, a 50mA LDO and a 200mA MAX output that tracks the higher voltage input supply, provide power for critical functions or additional external regulators. Flash memory cards can be directly powered from the protected 100mA Hot Swap output. Pushbutton control logic and a programmable-duration microprocessor reset generator simplify interfacing to a microprocessor while internal sequencing and independent enable pins provide flexible power-up options. The LTC3101 is available in a low profile (0.75mm) 24-lead 4mm × 4mm QFN package.

Applications

Ultra-Portable Digital Video Cameras
Personal Handheld GPS Navigators
Portable Medical Instruments

View All Documentation

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 2

1ku List Price Starting From $4.72

Technical Documents 4

LTC3101: Wide VIN, Multi-Output DC/DC Converter and PowerPath Controller Data Sheet 04/15/2010

R415 Reliability Data 03/23/2018

DC1443A - Demo Manual 09/24/2009

Power Management IC with Pushbutton Control Generates Six Voltage Rails from USB or 2 AA Cells Via Low Loss PowerPath Topology 06/01/2009

Reference Materials 1

Industrial Battery Chargers Overview 10/17/2023

Design Resources 2

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
LTC3101EUF#PBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC3101EUF#TRPBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LTC3101EUF#PBF
Pin/Package Drawing
24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LTC3101EUF#TRPBF
Pin/Package Drawing
24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

PCN/PDN Information

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Part Models

Product Lifecycle

PCN

Feb 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC3101EUF#PBF

PRODUCTION

LTC3101EUF#TRPBF

PRODUCTION

pdf

PCN21_0269_Form

xls

Material_Report

pdf

Detailed Change Description

pdf

Qualification Results Summary

Filter by Model

Part Models

Product Lifecycle

PCN

Feb 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC3101EUF#PBF

PRODUCTION

LTC3101EUF#TRPBF

PRODUCTION

pdf

PCN21_0269_Form

xls

Material_Report

pdf

Detailed Change Description

pdf

Qualification Results Summary

Companion Parts 5

Parts	Product Life Cycle	Description
Battery Fuel Gauge and Coulomb Counter1
LTC2942	NOT RECOMMENDED FOR NEW DESIGNS	Battery Gas Gauge with Temperature, Voltage Measurement
Dual-Supply Monitors1
LTC2960	RECOMMENDED FOR NEW DESIGNS	36V Nano-Current Two-Input Voltage Monitor
Low Voltage Hot Swap Controllers1
LTC4362-1 LTC4362-2		1.2A Overvoltage/Overcurrent Protector
PowerPath, Ideal Diodes, and Load Switches1
LTC4417	RECOMMENDED FOR NEW DESIGNS	Prioritized PowerPath^™ Controller
Pushbutton Controllers1
LTC2955	RECOMMENDED FOR NEW DESIGNS	Pushbutton On/Off Controller with Automatic Turn-On

DC1443A

LTC3101EUF Demo Board | 2-Cell, Multi-Output DC/DC Converter and PowerPath Manager

DC1443A

LTC3101EUF Demo Board | 2-Cell, Multi-Output DC/DC Converter and PowerPath Manager

Buy Now View Details

Product Detail

DC1443A: Demo Board for the LTC3101 Wide V_IN, Multi-Output DC/DC Converter and PowerPath Controller.

Resources

PDF

DC1443A - Demo Manual

455.00K

PDF

DC1443A - Schematic

85.00K

ZIP

DC1443A - Design File

2.00M

DC1443A

LTC3101EUF Demo Board | 2-Cell, Multi-Output DC/DC Converter and PowerPath Manager

LTspice 1

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.