LT1762 - 150mA, Low Noise, LDO Micropower Regulators


  • 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

Typical Application

LT1762 Typical Application
LT1762 Typical Application


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 300mV. 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.


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LT1762EMS8-2.5#PBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8-2.5#TRPBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8-3.3#PBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8-3.3#TRPBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8-3#PBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8-3#TRPBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8-5#PBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8-5#TRPBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8#PBF MS-8 MS8 E 05-08-1660 Yes
LT1762EMS8#TRPBF MS-8 MS8 E 05-08-1660 Yes

LT1762 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LT1762EMS8-2.5#PBF MS-8 E $1.30 $1.10 Yes
LT1762EMS8-2.5#TRPBF MS-8 E $1.16 Yes
LT1762EMS8-3.3#PBF MS-8 E $1.30 $1.10 Yes
LT1762EMS8-3.3#TRPBF MS-8 E $1.16 Yes
LT1762EMS8-3#PBF MS-8 E $1.30 $1.10 Yes
LT1762EMS8-3#TRPBF MS-8 E $1.16 Yes
LT1762EMS8-5#PBF MS-8 E $1.30 $1.10 Yes
LT1762EMS8-5#TRPBF MS-8 E $1.16 Yes
LT1762EMS8#PBF MS-8 E $1.30 $1.10 Yes
LT1762EMS8#TRPBF MS-8 E $1.16 Yes
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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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC279A-B LTC1736, LTC1772, LTC1762 | Low Cost VRM (Intel), 7.5 to 24Vin, 1.3V to 1.6Vout @ 14A, 1.5Vout @ 0.12 to 2.5A, 2.5Vout @ 0.15A Contact Factory
DC339A-A LT1762EMS8 Demo Board | Micropower Low Noise LDO Regulator, 2.3V ≤ VIN ≤ 20V, Vout = 1.22V/2.5V/3V/3.3V/5V/Adj @ 150mA $75.00
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Click here to view our complete list of demo boards


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

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Design Tools


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