Products
LT3009
RECOMMENDED FOR NEW DESIGNS3µA IQ, 20mA Low Dropout Linear Regulators
- Part Models
- 42
- 1ku List Price
- Starting From $1.36
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Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Technical Articles 3
Video 1
Solutions Bulletin & Brochure 2
Analog Dialogue 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT3009EDC#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-1.2#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-1.2#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-1.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-1.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-1.8#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-1.8#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-2.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-2.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009EDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009ESC8#TRMPBF | 8-Lead SC70 | ||
| LT3009ESC8#TRPBF | 8-Lead SC70 | ||
| LT3009ESC8-1.2#TRMPBF | 8-Lead SC70 | ||
| LT3009ESC8-1.2#TRPBF | 8-Lead SC70 | ||
| LT3009ESC8-1.5#TRMPBF | 8-Lead SC70 | ||
| LT3009ESC8-1.5#TRPBF | 8-Lead SC70 | ||
| LT3009ESC8-1.8#TRMPBF | 8-Lead SC70 | ||
| LT3009ESC8-1.8#TRPBF | 8-Lead SC70 | ||
| LT3009ESC8-2.5#TRMPBF | 8-Lead SC70 | ||
| LT3009ESC8-2.5#TRPBF | 8-Lead SC70 | ||
| LT3009ESC8-3.3#TRMPBF | 8-Lead SC70 | ||
| LT3009ESC8-3.3#TRPBF | 8-Lead SC70 | ||
| LT3009ESC8-5#TRMPBF | 8-Lead SC70 | ||
| LT3009ESC8-5#TRPBF | 8-Lead SC70 | ||
| LT3009IDC#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-1.2#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-1.2#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-1.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-1.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-1.8#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-1.8#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-2.5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-2.5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LT3009IDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Protection Switches & Controllers 2 | ||
| LTC4412 | RECOMMENDED FOR NEW DESIGNS | Low Loss PowerPath™ Controller in ThinSOT |
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| Supervisory Circuits & Reset ICs 1 | ||
| LTC2934 | PRODUCTION | Ultra-Low Power Adjustable Supervisor with Power-Fail Output |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LT3007 Series | RECOMMENDED FOR NEW DESIGNS | 3μA IQ, 20mA, 45V Low Dropout Fault Tolerant Linear Regulators |
| LT3008 Series | RECOMMENDED FOR NEW DESIGNS | 3μA IQ, 20mA, 45V Low Dropout Linear Regulators |
Tools & Simulations
LTspice 2
- LTC2955 / LTC4412 / LT3009-3.3 Demo Circuit - Pushbutton On/Off Control with Automatic Turn-On When 12V Applied (12V or 3.6V Battery Backup to 3.3V @ 20mA)
- LT3009 Demo Circuit - 3µA IQ, 20mA LDP Linear Regulator (20V to 3.3V @ 20mA)
Models for the following parts are available in LTspice:
- LT3009
- LT3009-1.2
- LT3009-1.8
- LT3009-2.5
- LT3009-3.3
- LT3009-5
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.
Evaluation Kits
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
Resources
Reference Designs
Part Used
Part Used
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