LT3009
Info : RECOMMENDED FOR NEW DESIGNS
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LT3009

3µA IQ, 20mA Low Dropout Linear Regulators

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 42
1ku List Price Starting From $1.18
Features
  • Ultralow Quiescent Current: 3μA
  • Input Voltage Range: 1.6V to 20V
  • Output Current: 20mA
  • Dropout Voltage: 280mV
  • Adjustable Output (VADJ = VOUT(MIN) = 600mV)
  • Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
  • Output Tolerance: ±2% Over Load, Line and Temperature
  • Stable with Low ESR, Ceramic Output Capacitors (1μF minimum)
  • Shutdown Current: <1μA
  • Current Limit Protection
  • Reverse-Battery Protection
  • Thermal Limit Protection
  • 8-Lead SC70 and 2mm × 2mm DFN Packages
Additional Details
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The LT3009 Series are micropower, low dropout voltage (LDO) linear regulators. The devices supply 20mA output current with a dropout voltage of 280mV. No-load quiescent current is 3μA. Ground pin current remains at less than 5% of output current as load increases. In shutdown, quiescent current is less than 1μA.

The LT3009 regulators optimize stability and transient response with low ESR ceramic capacitors, requiring a minimum of only 1μF. The regulators do not require the . addition of ESR as is common with other regulators. Internal protection circuitry includes current limiting, thermal limiting, reverse-battery protection and reverse-current protection.

The LT3009 Series are ideal for applications that require moderate output drive capability coupled with ultralow standby power consumption. The device is available in fixed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5V, and as an adjustable device with an output voltage range down to the 600mV reference. The LT3009 is available in the 6-lead DFN and 8-lead SC70 packages.

Applications

  • Low Current Battery-Powered Systems
  • Keep-Alive Power Supplies
  • Remote Monitoring
    • Utility Meters
    • Hotel Door Locks
Part Models 42
1ku List Price Starting From $1.18

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC1156A

LT3009EDC Demo Board | Micropower Low Dropout Linear Regulator, 1.6V ≤ VIN ≤ 20V, VOUT = 1.2V/1.5V/1.8V/2.0V/2.5V/3.3V/5V/Adjustable @ 20mA

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DC1156A

LT3009EDC Demo Board | Micropower Low Dropout Linear Regulator, 1.6V ≤ VIN ≤ 20V, VOUT = 1.2V/1.5V/1.8V/2.0V/2.5V/3.3V/5V/Adjustable @ 20mA

LT3009EDC Demo Board | Micropower Low Dropout Linear Regulator, 1.6V ≤ VIN ≤ 20V, VOUT = 1.2V/1.5V/1.8V/2.0V/2.5V/3.3V/5V/Adjustable @ 20mA

Product Detail

Demonstration circuit 1156A is an ultralow quiescent current and low dropout voltage linear regulator featuring the 20mA output current LT3009 in the  which comes in the 2mm × 2mm DFN package. The DC1156A has an input voltage range from 1.6V to 20V and has jumper-selectable output voltages of 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5V or a user-defined value.


With the 3µA quiescent current of the LT3009, the DC1156A is ideal for supplying power to low current battery-powered systems, keep-alive power supply and remote monitoring utility meters and hotel door locks.

Tools & Simulations

Tools & Simulations 1

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.

Reference Designs

Reference Designs 4

DK-DEV-5SGXEA7N Dev Kit

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altera-stratix-v-gx-fpga-development-kit

altera-stratix-v-gx-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link
Stratix V Advanced System Development Board

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stratix-v-advanced-system-development-board

stratix-v-advanced-system-development-board

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link
DK-DEV-5CEA7N Dev Kit

zoomopens a dialog

altera-cyclone-v-e-development-kit

altera-cyclone-v-e-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link
DK-DEV-5CGTD9N Dev Kit

zoomopens a dialog

altera-cyclone-v-gt-fpga-development-kit

altera-cyclone-v-gt-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

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