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
AEC-Q100 data available for specific packages
Typical Application
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.
Packaging
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 Drawing |
RoHS |
|---|---|---|---|---|---|
| LT3009EDC-1.2#PBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.2#TRMPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.2#TRPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.5#PBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.5#TRMPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.5#TRPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.8#PBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.8#TRMPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-1.8#TRPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-2.5#PBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-2.5#TRMPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-2.5#TRPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-3.3#PBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-3.3#TRMPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-3.3#TRPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-5#PBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-5#TRMPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC-5#TRPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC#PBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC#TRMPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009EDC#TRPBF | 2x2 DFN-6 | DC6 | E | 05-08-1703 | Yes |
| LT3009ESC8-1.2#PBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.2#TRMPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.2#TRPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.5#PBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.5#TRMPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.5#TRPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.8#PBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.8#TRMPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-1.8#TRPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-2.5#PBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-2.5#TRMPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-2.5#TRPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-3.3#PBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-3.3#TRMPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-3.3#TRPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-5#PBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-5#TRMPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8-5#TRPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8#PBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8#TRMPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009ESC8#TRPBF | SC-70 | SC8 | E | 05-08-1639 | Yes |
| LT3009IDC-1.2#PBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.2#TRMPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.2#TRPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.5#PBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.5#TRMPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.5#TRPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.8#PBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.8#TRMPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-1.8#TRPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-2.5#PBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-2.5#TRMPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-2.5#TRPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-3.3#PBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-3.3#TRMPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-3.3#TRPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-5#PBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-5#TRMPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC-5#TRPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC#PBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC#TRMPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
| LT3009IDC#TRPBF | 2x2 DFN-6 | DC6 | I | 05-08-1703 | Yes |
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
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 |
|---|---|---|---|
| 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/Adj @ 20mA | $75.00 | |
| Buy Now | |||
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation pagesales office or authorized distributor.
Applications
- Low Current Battery-Powered Systems
- Keep-Alive Power Supplies
- Remote Monitoring
- Utility Meters
- Hotel Door Locks
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Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
To launch a ready to run LTspice demonstration circuit for this part:
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To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.
Models for the following parts are available in LTspice:
LT3009
LT3009-1.2
LT3009-1.8
LT3009-2.5
LT3009-3.3
LT3009-5
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
