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Alternative Parts

ADP7118
ADP7118

20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator

Overview

Features and Benefits

  • Low noise: 11 μV rms independent of fixed output voltage  
  • PSRR of 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz, VOUT = 5 V, VIN = 7 V
  • Input voltage range: 2.7 V to 20 V 
  • Maximum output current: 200 mA 
  • Initial accuracy: ±0.8%
  • Accuracy over line, load, and temperature ±1.8%, TJ = −40°C to +125°C
  • Low dropout voltage: 200 mV (typical) at a 200 mA load, VOUT = 5 V
  • User-programmable soft start
  • Low quiescent current, IGND = 50 μA (typical) with no load 
  • Low shutdown current
    • 1.8 μA at VIN = 5 V
    • 3.0 μA at VIN = 20 V 
  • Stable with a small 2.2 μF ceramic output capacitor 
  • Fixed output voltage options: 1.8 V, 2.5 V, 3.3 V, and 5.0 V 15 standard voltages between 1.2 V and 5.0 V are available
  • Adjustable output from 1.2 V to VIN – VDO, output can be adjusted above initial set point  
  • Precision enable 
  • 1 mm × 1.2 mm, 6-ball WLCSP 

Product Details

The ADP7112 is a CMOS, low dropout (LDO) linear regulator that operates from 2.7 V to 20 V and provides up to 200 mA of output current. This high input voltage LDO is ideal for the regulation of high performance analog and mixed signal circuits operating from 20 V down to 1.2 V rails. Using an advanced proprietary architecture, the device provides high power supply rejection, low noise, and achieves excellent line and load transient response with a small 2.2 µF ceramic output capacitor. The ADP7112 regulator output noise is 11 μV rms independent of the output voltage for the fixed options of 5 V or less.

The ADP7112 is available in 16 fixed output voltage options. The following voltages are available from stock: 1.2 V (adjustable), 1.8 V, 2.5 V, 3.3 V, and 5.0 V. Additional voltages available by special order are 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.75 V, 2.8 V, 2.85 V, 3.8 V, 4.2 V, and 4.6 V.

Each fixed output voltage can be adjusted above the initial set point with an external feedback divider. This allows the ADP7112 to provide an output voltage from 1.2 V to VIN − VDO with high PSRR and low noise.

User programmable soft start with an external capacitor is available in the ADP7112. The ADP7112 is available in a 6-ball 1 mm × 1.2mm WLCSP, making it a very compact solution.

Applications

  • Regulation to noise sensitive applications
    ADC, DAC circuits, precision amplifiers, power for
    VCO VTUNE control
  • Communications and infrastructure
  • Medical and healthcare
  • Industrial and instrumentation

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  • Data Sheets (1)
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  • Solutions Bulletins & Brochures (2)
  • Circuit Note (1)
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    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:

    ADP7112
    ADP7112-1.8
    ADP7112-2.5
    ADP7112-3.3
    ADP7112-5.0

    Design Tools

    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.

    ADP7112 Material Declaration
    Quality And Reliability
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    Support & Discussions

    ADP7112 Discussions

    RE: unclear from datasheet if all ADP7112 versions/models can operate with adjustable output configuration
    23 week(s) ago in Power Management
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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.