ADM7155
Info : RECOMMENDED FOR NEW DESIGNS
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ADM7155

600 mA, Ultralow Noise, High PSRR, RF Linear Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 8
1ku List Price Starting From $2.75
Features
  • Input voltage range: 2.3 V to 5.5 V
  • Output voltage range: 1.2 V to 3.4 V
  • Maximum load current: 600 mA
  • Low noise
    • 0.9 μV rms total integrated noise from 100 Hz to 100 kHz
    • 1.6 μV rms total integrated noise from 10 Hz to 100 kHz
  • Noise spectral density: 1.5 nV/√Hz from 10 kHz to 1 MHz
  • PSRR: >90 dB from 200 Hz to 200 kHz; 57 dB at 1 MHz
  • Dropout voltage: 120 mV typical at VOUT = 3.3 V, IOUT = 600 mA
  • Initial accuracy: ±0.5%
  • Accuracy over line, load, and temperature: −2.0% (minimum), +1.5% (maximum)
  • Quiescent current, IGND = 4 mA at no load
  • Low shutdown current: 0.2 μA
  • Stable with a 10 μF ceramic output capacitor
  • 8-lead LFCSP and 8-lead SOIC packages
  • Precision enable
  • Supported by ADIsimPower tool
Additional Details
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The ADM7155 is an adjustable linear regulator that operates from 2.3 V to 5.5 V and provides up to 600 mA of load current. Output voltages from 1.2 V to 3.4 V are possible depending on the model. Using an advanced proprietary architecture, it provides high power supply rejection and ultralow noise, achieving excellent line and load transient response with only a 10 µF ceramic output capacitor.

The ADM7155 is available in four models that optimize power dissipation and PSRR performance as a function of input and output voltage.

The ADM7155 regulator typical output noise is 0.9 μV rms from 100 Hz to 100 kHz for fixed output voltage options and 1.5 nV/√Hz for noise spectral density from 10 kHz to 1 MHz. The ADM7155 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages, making it not only a very compact solution but also providing excellent thermal performance for applications requiring up to 600 mA of load current in a small, low profile footprint.

Applications

  • Regulation to noise sensitive applications: PLLs, VCOs, and PLLs with integrated VCOs
  • Communications and infrastructure
  • Backhaul and microwave links

Part Models 8
1ku List Price Starting From $2.75

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADM7155ACPZ-01-R7
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ADM7155ACPZ-02-R7
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ADM7155ACPZ-03-R7
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ADM7155ACPZ-04-R7
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ADM7155ARDZ-01-R7
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ADM7155ARDZ-02-R7
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ADM7155ARDZ-03-R7
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ADM7155ARDZ-04-R7
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADM7154

ADM7154 Evaluation Board

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EVAL-ADM7154

ADM7154 Evaluation Board

ADM7154 Evaluation Board

Features and Benefits

  • Input voltage range: 2.3 V to 5.5 V
  • Maximum output current: 600 mA
  • Low noise
  • 0.9 µV rms total integrated noise from 100 Hz to 100 kHz
  • 1.6 µV rms total integrated noise from 10 Hz to 100 kHz
  • Initial accuracy: ±0.5%
  • Fixed 3.3 V (ADM7154) and adjustable (ADM7155) output versions
  • 8-lead LFCSP and 8-lead SOIC packages

Product Detail

The ADM7154CP-3.3EVALZ, ADM7154CP-1.8EVALZ and ADM7155CP-02-EVALZ evaluation boards are used to demonstrate the functionality of the ADM7154 and ADM7155 linear regulators, respectively.

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

For more details about the linear regulators, refer to the ADM7154 and ADM7155 data sheets.

Evaluation Kit Contents
  •     ADM7154CP-3.3EVALZ, ADM7154CP-1.8EVALZ or ADM7155CP-02-EVALZ evaluation board
Additional Equipment Needed
  •     DC power supply
  •     Multimeters for voltage and current measurements
  •     Electronic or resistive loads
Tools & Simulations

Tools & Simulations 2

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.

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