1. Products
  2. Power Management
  3. Battery Management
  4. PMIC (DC/DC, PowerPath, and Battery Charger)
  5. LTC3456

Data Sheet
JP
User Guides
1 View All

Alternative Parts

LTC3101
LTC3101

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

Overview

Features and Benefits

  • Seamless Transition Between 2-Cell Battery, USB and AC Wall Adapter Input Power Sources
  • Main Output: Fixed 3.3V Output
  • Core Output: Adjustable from 0.8V to VBATT(MIN)
  • Hot Swap™ Output for Memory Cards
  • All Outputs Discharged to Ground During Shutdown
  • Power Supply Sequencing: Main and Hot Swap Outputs Come Up After Core Output
  • Accurate USB Current Limiting
  • High Frequency Operation: 1MHz
  • High Efficiency: Up to 92%
  • Small (4mm × 4mm × 0.75mm) 24-Pin QFN Package

Product Details

The LTC3456 is a complete power management system IC optimized for a variety of portable applications. The device generates two separate power rails: a 3.3V (fixed) Main supply and a 1.8V (adjustable) Core supply. In addition, the LTC3456 contains a USB power manager, a Hot Swap output, a low-battery indicator and an alwaysalive VMAX output. The LTC3456 takes power from one of three sources: a Wall adapter, a USB port or a 2-cell Alkaline/NiCd/NiMH battery, in that order of priority. Current drawn from the USB port is accurately limited to 100mA or 500mA based on the state of the USBHP pin.

The Main and Core switchers are all high efficiency, 1MHz fixed frequency PWM converters. Availability in a small (4mm × 4mm × 0.75mm) 24-pin QFN package makes the LTC3456 ideal for space-sensitive portable devices.

Applications

  • GPS Portable Navigators
  • MP3 Players
  • Digital Cameras
  • Handheld Computers

Product Categories

Comparable Parts Click to see all in Parametric Search

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Documentation & Resources

  • View All (5)
  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Design Notes (1)
  • Technical Articles (1)
    • Document Type

    Product Recommendations

    LTC3456 Companion Parts

    Recommended µModule Isolator

    Design Resources

    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 Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LTC3456EUF#PBF Material Declaration Reliability Data 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
    LTC3456EUF#TRPBF Material Declaration Reliability Data 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
    Wafer Fabrication Data R415 Reliability Data

    PCN-PDN Information

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • LTC3456EUF#PBF Production
    • LTC3456EUF#TRPBF Production

    Support & Discussions

    LTC3456 Contact ADI Technical Support »
    LTC3456 Ask your question »
    LTC3456 Contact ADI Technical Support » LTC3456 Ask your question »

    Sample & Buy


    Ordering FAQs


    See our Ordering FAQs for answers to questions about online orders, payment options and more.

     

    Buy Now Pricing


    (**) Displayed Buy Now Price and Price Range is based on small quantity orders.

     

    List Pricing


    (*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

     

    Lead Times


    Please see the latest communication from our CCO regarding lead times.

     

    Sampling


    Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.


    Price Table Help

     

    Evaluation Boards

    Pricing displayed is based on 1-piece.

    Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

    •