LT3009 - 3µA IQ, 20mA Low Dropout Linear Regulators

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

Typical Application

LT3009
LT3009
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Description

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.
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Packaging

SC-70, DFN-6

LT3009
LT3009
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT3009EDC#PBF DFN 6 E $1.36   View
LT3009EDC#TRMPBF DFN 6 E $1.36 $1.00 View
LT3009EDC#TRPBF DFN 6 E $1.36 $0.95 View
LT3009EDC-1.2#PBF DFN 6 E $1.36   View
LT3009EDC-1.2#TRMPBF DFN 6 E $1.36 $1.00 View
LT3009EDC-1.2#TRPBF DFN 6 E $1.36 $0.95 View
LT3009EDC-1.5#PBF DFN 6 E $1.36   View
LT3009EDC-1.5#TRMPBF DFN 6 E $1.36 $1.00 View
LT3009EDC-1.5#TRPBF DFN 6 E $1.36 $0.95 View
LT3009EDC-1.8#PBF DFN 6 E $1.36   View
LT3009EDC-1.8#TRMPBF DFN 6 E $1.36 $1.00 View
LT3009EDC-1.8#TRPBF DFN 6 E $1.36 $0.95 View
LT3009EDC-2.5#PBF DFN 6 E $1.36   View
LT3009EDC-2.5#TRMPBF DFN 6 E $1.36 $1.00 View
LT3009EDC-2.5#TRPBF DFN 6 E $1.36 $0.95 View
LT3009EDC-3.3#PBF DFN 6 E $1.36   View
LT3009EDC-3.3#TRMPBF DFN 6 E $1.36 $1.00 View
LT3009EDC-3.3#TRPBF DFN 6 E $1.36 $0.95 View
LT3009EDC-5#PBF DFN 6 E $1.36   View
LT3009EDC-5#TRMPBF DFN 6 E $1.36 $1.00 View
LT3009EDC-5#TRPBF DFN 6 E $1.36 $0.95 View
LT3009ESC8#PBF SC70 8 E $1.36   View
LT3009ESC8#TRMPBF SC70 8 E $1.36 $1.00 View
LT3009ESC8#TRPBF SC70 8 E $1.36 $0.95 View
LT3009ESC8-1.2#PBF SC70 8 E $1.36   View
LT3009ESC8-1.2#TRMPBF SC70 8 E $1.36 $1.00 View
LT3009ESC8-1.2#TRPBF SC70 8 E $1.36 $0.95 View
LT3009ESC8-1.5#PBF SC70 8 E $1.36   View
LT3009ESC8-1.5#TRMPBF SC70 8 E $1.36 $1.00 View
LT3009ESC8-1.5#TRPBF SC70 8 E $1.36 $0.95 View
LT3009ESC8-1.8#PBF SC70 8 E $1.36   View
LT3009ESC8-1.8#TRMPBF SC70 8 E $1.36 $1.00 View
LT3009ESC8-1.8#TRPBF SC70 8 E $1.36 $0.95 View
LT3009ESC8-2.5#PBF SC70 8 E $1.36   View
LT3009ESC8-3.3#PBF SC70 8 E $1.36   View
LT3009ESC8-3.3#TRMPBF SC70 8 E $1.36 $1.00 View
LT3009ESC8-3.3#TRPBF SC70 8 E $1.36 $0.95 View
LT3009ESC8-5#PBF SC70 8 E $1.36   View
LT3009ESC8-5#TRMPBF SC70 8 E $1.36 $1.00 View
LT3009ESC8-5#TRPBF SC70 8 E $1.36 $0.95 View
LT3009IDC#PBF DFN 6 I $1.56   View
LT3009IDC#TRMPBF DFN 6 I $1.56 $1.14 View
LT3009IDC#TRPBF DFN 6 I $1.56 $1.09 View
LT3009IDC-1.2#PBF DFN 6 I $1.56   View
LT3009IDC-1.2#TRMPBF DFN 6 I $1.56 $1.14 View
LT3009IDC-1.2#TRPBF DFN 6 I $1.56 $1.09 View
LT3009IDC-1.5#PBF DFN 6 I $1.56   View
LT3009IDC-1.5#TRMPBF DFN 6 I $1.56 $1.14 View
LT3009IDC-1.5#TRPBF DFN 6 I $1.56 $1.09 View
LT3009IDC-1.8#PBF DFN 6 I $1.56   View
LT3009IDC-1.8#TRMPBF DFN 6 I $1.56 $1.14 View
LT3009IDC-1.8#TRPBF DFN 6 I $1.56 $1.09 View
LT3009IDC-2.5#PBF DFN 6 I $1.56   View
LT3009IDC-2.5#TRMPBF DFN 6 I $1.56 $1.14 View
LT3009IDC-2.5#TRPBF DFN 6 I $1.56 $1.09 View
LT3009IDC-3.3#PBF DFN 6 I $1.56   View
LT3009IDC-3.3#TRMPBF DFN 6 I $1.56 $1.14 View
LT3009IDC-3.3#TRPBF DFN 6 I $1.56 $1.09 View
LT3009IDC-5#PBF DFN 6 I $1.56   View
LT3009IDC-5#TRMPBF DFN 6 I $1.56 $1.14 View
LT3009IDC-5#TRPBF DFN 6 I $1.56 $1.09 View
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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.

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Applications

  • Low Current Battery-Powered Systems
  • Keep-Alive Power Supplies
  • Remote Monitoring
  • Utility Meters
  • Hotel Door Locks
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Simulate

LTSpice IV is a powerful FREE circuit simulator and schematic capture program, providing macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

  • Step 1. If you do not already have a copy of LTSpice IV, click here to download and install LTSpice / SwitcherCAD III

  • Step 2. Once LTSpice is installed, click here for a ready to run  demonstration circuit of the LT3009.

  • Step 3. If LTspice IV does not automatically open after clicking the above link, 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 demonstartion circuit by selecting "Open" from the "File" menu.
For our complete list of hundreds of ready to run demo circuits, visit our LTspice IV Demo Circuits Collection
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