ADP171

300 mA, Low Quiescent Current, adjustable output, CMOS Linear Regulator
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Product Details

The ADP170/ADP171/ADP172 are low voltage input, low quiescent current, low-dropout (LDO) linear regulators that operate from 1.6 V to 3.6 V and provide up to 300 mA of output current. The low 55 mV dropout voltage at 300 mA load improves efficiency and allows operation over a wide input voltage range. The low 23 μA of quiescent current at no load makes the ADP170/ADP171/ADP172 ideal for battery-operated portable equipment.

TheADP170 is capable of 31 fixed-output voltage options, ranging from 0.8 V to 3.0 V. ADP171 is an adjustable version, which allows output voltages that range from 0.8 V to 3.0 V via an external divider. The ADP170/ADP171 are optimized for stable operation with small 1 μF ceramic output capacitors. Ideal for powering digital processors, the ADP170/ADP171 exhibit good transient performance and occupy minimal board space. Compared with commodity types of LDOs, the ADP170/ADP171 provide 20 dB to 40 dB better power supply rejection ratio (PSRR) at 100 kHz, making the ADP170/ADP171 an ideal power source for analog-to-digital converter (ADC) mixed-signal processor systems and allowing use of smaller size bypass capacitors. In addition, low output noise performance without the need for an additional bypass capacitor further reduces printed circuit board (PCB) component count.

Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP170/ADP171 are available in tiny 5-lead TSOT for the smallest footprint solution to meet a variety of portable power applications.

Applications
  • Mobile phones
  • Digital camera and audio devices
  • Portable and battery-powered equipment
  • DSP/FPGA/microprocessor supplies
  • Post dc-dc regulation
  • Product Lifecycle

    checked 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

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    Product Details

    These evaluation boards are used to demonstrate the functionality of the ADP170 linear regulators.

    Simple device measurements such as line and load regulation, dropout, and ground current can be demonstrated with just a single voltage supply, a voltmeter, a current meter, and load resistors.

    Product Details

    In order to get the correct unpopulated evaluation board with an appropriate Bill of Materials and Schematic, you need to use the button for "Request Evaluation Board" from within the design tool. Make sure the design tool is in a state that matches your desired power requirements.

    This will create a template email that will request from us the proper blank evaluation board for that ADI part and your application's power parameters.


    Note: Some parts have multiple blank boards for high/low current or for different topologies (Boost, SEPIC, SEPIC-Cuk), while other blank boards support multiple ADI parts. This is why it is important to run the design tool with your parameters before making your email request from the tool.

    Tools & Simulations

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    Design Tools

    Reference Materials

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    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.

    ADP171 Material Declaration
    PCN-PDN Information Quality And Reliability Symbols and Footprints

    Sample & Buy

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    The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


    Price Table Help

     
    Evaluation Boards Pricing displayed is based on 1-piece.
    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.