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  4. Positive Linear Regulators (LDO)
  5. LT1762

Data Sheet Rev. B
User Guides
2 View All

Alternative Parts

LT1763
LT1763

500mA, Low Noise, LDO Micropower Regulators

LT3082
LT3082

200mA Single Resistor Low Dropout Linear Regulator

Overview

Features and Benefits

  • Low Noise: 20µVRMS (10Hz to 100kHz)
  • Low Quiescent Current: 25µA
  • Wide Input Voltage Range: 1.8V to 20V
  • Output Current: 150mA
  • Very Low Shutdown Current: < 1µA
  • Low Dropout Voltage: 270mV
  • No Protection Diodes Needed
  • Fixed Output Voltages: 2.5V, 3V, 3.3V, 5V
  • Adjustable Output from 1.22V to 20V
  • Stable with 2.2µF Output Capacitor
  • Stable with Aluminum, Tantalum or Ceramic Capacitors
  • Reverse Battery Protection
  • No Reverse Current
  • Overcurrent and Overtemperature Protected
  • 8-Lead MSOP Package

Product Details

The LT1762 series are micropower, low noise, low dropout regulators. The devices are capable of supplying 150mA of output current with a dropout voltage of 270mV. Designed for use in battery-powered systems, the low 25µA quiescent current makes them an ideal choice. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators.

A key feature of the LT1762 regulators is low output noise. With the addition of an external 0.01µF bypass capacitor, output noise drops to 20µVRMS over a 10Hz to 100kHz bandwidth. The LT1762 regulators are stable with output capacitors as low as 2.2µF. Small ceramic capacitors can be used without the series resistance required by other regulators.

Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The parts come in fixed output voltages of 2.5V, 3V, 3.3V and 5V, and as an adjustable device with a 1.22V reference voltage. The LT1762 regulators are available in the 8-lead MSOP package.

APPLICATIONS

  • Cellular Phones
  • Battery-Powered Systems
  • Frequency Synthesizers
  • Noise-Sensitive Instrumentation Systems

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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 (2)

Documentation & Resources

  • View All (8)
  • Data Sheets (1)
  • Reliability Data (1)
  • Application Notes (2)
  • User Guides (2)
  • Solutions Bulletins & Brochures (1)
  • Technical Articles (1)
    • Document Type

    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.

    To launch ready-to-run LTspice demonstration circuits for this part:

    Step 1: Download and install LTspice on your computer.

    Step 2: Click on the link in the section below to download a demonstration circuit.

    Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

    LTspice

    LTspice Simulations

    LT1762 Demo Circuit - Low Noise, µPower LDO Regulator (10V to 2.5V@150mA)

    Models for the following parts are available in LTspice:

    LT1762
    LT1762-2.5
    LT1762-3
    LT1762-3.3
    LT1762-5

    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
    LT1762EMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-2.5#PBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-2.5#TRPBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-3#PBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-3#TRPBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-3.3#PBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-3.3#TRPBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-5#PBF Material Declaration Reliability Data 8-Lead MSOP
    LT1762EMS8-5#TRPBF Material Declaration Reliability Data 8-Lead MSOP
    Wafer Fabrication Data R386 Reliability 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
    • LT1762EMS8#PBF Production
    • LT1762EMS8#TRPBF Production
    • LT1762EMS8-2.5#PBF Production
    • LT1762EMS8-2.5#TRPBF Production
    • LT1762EMS8-3#PBF Production
    • LT1762EMS8-3#TRPBF Production
    • LT1762EMS8-3.3#PBF Production
    • LT1762EMS8-3.3#TRPBF Production
    • LT1762EMS8-5#PBF Production
    • LT1762EMS8-5#TRPBF Production

    Support & Discussions

    LT1762 Contact ADI Technical Support »
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