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  5. ADP1708

Data Sheet Rev. B
PDF
JP Rev. 0
User Guide
CN 1 View All

Alternative Parts

LT1965
LT1965

1.1A, Low Noise, Low Dropout Linear Regulator

LT3080
LT3080

Adjustable 1.1A Single Resistor Low Dropout Regulator

Overview

Features and Benefits

  • Maximum output current: 1 A
  • Input voltage range: 2.5 V to 5.5 V
  • Low shutdown current: <1 μA
  • Low dropout voltage: 345 mV @ 1 A load
  • Initial accuracy: ±1%
  • Accuracy over line, load, and temperature: ±2.5%
  • 16 fixed output voltage options with soft start: 0.75 V to 3.3 V (ADP1706)
  • 16 fixed output voltage options with tracking 0.75 V to 3.3 V (ADP1707)
  • Adjustable output voltage option: 0.8 V to 5.0 V (ADP1708)
  • Stable with small 4.7 μF ceramic output capacitor
  • Excellent load/line transient response
  • Current limit and thermal overload protection

Product Details

The ADP1706/ADP1707/ADP1708 are CMOS, low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 1 A of output current. Using an advanced proprietary architecture, they provide high power supply rejection and achieve excellent line and load transient response with a small 4.7 μF ceramic output capacitor.

The ADP1706/ADP1707 are available in 16 fixed output volt-age options. The ADP1708 is available in an adjustable version, which allows output voltages that range from 0.8 V to 5.0 V via an external divider. The ADP1706 allows an external soft start capacitor to be connected to program the start-up time; the ADP1707 and ADP1708 contain internal soft start capacitors that give a typical start-up time of 100 μs. The ADP1707 includes a tracking feature that allows the output to follow an external voltage rail or reference.

The ADP1706/ADP1707/ADP1708 are available in an 8-lead, exposed paddle SOIC package and an 8-lead, 3 mm × 3 mm exposed paddle LFCSP, making them not only very compact solutions but also providing excellent thermal performance for applications requiring up to 1 A of output current in a small, low profile footprint.

Applications

  • Notebook computers
  • Memory components
  • Telecommunications equipment
  • Network equipment
  • DSP/FPGA/microprocessor supplies
  • Instrumentation equipment/data acquisition systems

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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 (8)
  • Data Sheet (1)
  • Application Note (2)
  • User Guide (1)
  • Frequently Asked Question (1)
  • Tutorial (1)
  • Solutions Bulletin & Brochure (1)
  • Technical Article (1)
    • Document Type
    Frequently Asked Question

    Tools & Simulations

    LTspice

    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.

    LTspice

    Models for the following parts are available in LTspice:

    ADP1708

    Design Tool

    ADI Linear Regulator Design Tool and Parametric Search

    Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

    Reference Designs (1)

    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
    ADP1708ACPZ-R7 Material Declaration Reliability Data 8-Lead LFCSP (3mm x 3mm w/ EP)
    ADP1708ARDZ-R7 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    Wafer Fabrication 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
    • ADP1708ACPZ-R7 Production
    • ADP1708ARDZ-R7 Production

    Support & Discussions

    ADP1708 Discussions

    RE: ADP1708 LTSpice model
    All ADP1708 Discussions
    ADP1708 Contact ADI Technical Support »
    ADP1708 Ask your question »
    ADP1708 Contact ADI Technical Support » ADP1708 Ask your question »

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    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.

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