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  5. ADP7118


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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
    • −1.2% to +1.5%, TJ = −40°C to +85°C
    • ±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 (LFCSP and SOIC only)
  • 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, 4.5 V, and 5.0 V
    • 16 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
  • 2 mm × 2 mm, 6-lead LFCSP, 8-Lead SOIC, 5-Lead TSOT
  • AEC-Q100 qualified for automotive applications

Product Details

The ADP7118 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 19 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 ADP7118 regulator output noise is 11 μV rms independent of the output voltage for the fixed options of 5 V or less.

The ADP7118 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, 4.5 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 ADP7118 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 LFCSP and SOIC packages.

The ADP7118 is available in a 6-lead, 2 mm × 2 mm LFCSP making it not only a very compact solution, but it also provides excellent thermal performance for applications requiring up to 200 mA of output current in a small, low profile footprint. The ADP7118 is also available in a 5-lead TSOT and an 8-lead SOIC.

Applications

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

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (7)

Documentation & Resources

  • View All (15)
  • 3rd Party Solutions (2)
  • Data Sheets (1)
  • User Guides (1)
  • Solutions Bulletins & Brochures (2)
  • Circuit Note (4)
  • Application Notes (1)
  • Press Releases (1)
  • Technical Articles (3)
  • Circuit Note

    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:

    ADP7118
    ADP7118-1.8
    ADP7118-2.5
    ADP7118-3.3
    ADP7118-4.5
    ADP7118-5.0

    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 (9)

    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
    ADP7118ACPZN-R7 Material Declaration Reliability Data 6-Lead LFCSP (2mm x 2mm w/ EP)
    ADP7118ACPZN1.8-R7 Material Declaration Reliability Data 6-Lead LFCSP (2mm x 2mm w/ EP)
    ADP7118ACPZN2.5-R7 Material Declaration Reliability Data 6-Lead LFCSP (2mm x 2mm w/ EP)
    ADP7118ACPZN3.3-R7 Material Declaration Reliability Data 6-Lead LFCSP (2mm x 2mm w/ EP)
    ADP7118ACPZN5.0-R7 Material Declaration Reliability Data 6-Lead LFCSP (2mm x 2mm w/ EP)
    ADP7118ARDZ Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-1.8 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-1.8-R7 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-2.5 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-2.5-R7 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-3.3 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-3.3-R7 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-5.0 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-5.0-R7 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118ARDZ-R7 Material Declaration Reliability Data 8-Lead SOIC w/ EP
    ADP7118AUJZ-1.8-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118AUJZ-2.5-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118AUJZ-3.3-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118AUJZ-4.5-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118AUJZ-5.0-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118AUJZ-R2 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118AUJZ-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118WAUJZ-1.8-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118WAUJZ-2.5-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118WAUJZ-3.3-R7 Material Declaration Reliability Data 5-Lead TSOT
    ADP7118WAUJZ-5.0-R7 Material Declaration Reliability Data 5-Lead TSOT
    Wafer Fabrication Data

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