LT3022 - 1A, 0.9V to 10V, Very Low Dropout Linear Regulator
Features
- VIN Range: 0.9V to 10V
- Dropout Voltage: 145mV Typical
- Output Current: 1A
- Adjustable Output (VREF = VOUT(MIN) = 200mV)
- Fixed Output Voltages: 1.2V, 1.5V, 1.8V
- Stable with Low ESR, Ceramic Output Capacitors (10μF Minimum)
- 0.05% Typical Load Regulation from 1mA to 1A
- Quiescent Current: 400μA Typical
- 7.5μA Typical Quiescent Current in Shutdown
- Current Limit Protection
- Reverse-Battery Protection with No Reverse Current
- Thermal Limiting with Hysteresis
- 16-Lead (5mm x 3mm) DFN and MSOP Packages
AEC-Q100 data available for specific packages
Typical Application
Description
The LT3022 is a very low dropout voltage (VLDO) linear regulator that operates from single input supplies down to 0.9V. The device supplies 1A output current with 145mV typical dropout voltage. The LT3022 is ideal for low input voltage to low output voltage applications, providing comparable electrical efficiency to a switching regulator. The regulator optimizes stability and transient response with low ESR ceramic output capacitors as small as 10μF. Other LT3022 features include 0.05% typical line regulation and 0.05% typical load regulation. In shutdown, quiescent current typically drops to 7.5μA. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting with hysteresis and reverse-current protection.
The LT3022 is available as an adjustable device with an output voltage range down to the 200mV reference. Three fixed output voltages, 1.2V, 1.5V and 1.8V are also offered. The LT3022 regulator is available in the thermally enhanced low profile (0.75mm) 16-lead (5mm x 3mm) DFN and MSOP 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 |
|---|---|---|---|---|---|
| LT3022EDHC#PBF | 5x3 DFN-16 | DHC | E | 05-08-1706 | Yes |
| LT3022EDHC#TRPBF | 5x3 DFN-16 | DHC | E | 05-08-1706 | Yes |
| LT3022EMSE-1.2#PBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022EMSE-1.2#TRPBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022EMSE-1.5#PBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022EMSE-1.5#TRPBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022EMSE-1.8#PBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022EMSE-1.8#TRPBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022EMSE#PBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022EMSE#TRPBF | MS-16E | MSE | E | 05-08-1667 | Yes |
| LT3022IDHC#PBF | 5x3 DFN-16 | DHC | I | 05-08-1706 | Yes |
| LT3022IDHC#TRPBF | 5x3 DFN-16 | DHC | I | 05-08-1706 | Yes |
| LT3022IMSE-1.2#PBF | MS-16E | MSE | I | 05-08-1667 | Yes |
| LT3022IMSE-1.2#TRPBF | MS-16E | MSE | I | 05-08-1667 | Yes |
| LT3022IMSE-1.5#PBF | MS-16E | MSE | I | 05-08-1667 | Yes |
| LT3022IMSE-1.5#TRPBF | MS-16E | MSE | I | 05-08-1667 | Yes |
| LT3022IMSE-1.8#PBF | MS-16E | MSE | I | 05-08-1667 | Yes |
| LT3022IMSE-1.8#TRPBF | MS-16E | MSE | I | 05-08-1667 | Yes |
| LT3022IMSE#PBF | MS-16E | MSE | I | 05-08-1667 | Yes |
| LT3022IMSE#TRPBF | MS-16E | MSE | I | 05-08-1667 | 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
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT3022EDHC#PBF | 5x3 DFN-16 | E | $3.90 | $2.73 | Yes | |
| LT3022EDHC#TRPBF | 5x3 DFN-16 | E | $2.79 | Yes | ||
| LT3022EMSE-1.2#PBF | MS-16E | E | $4.10 | $2.87 | Yes | |
| LT3022EMSE-1.2#TRPBF | MS-16E | E | $2.93 | Yes | ||
| LT3022EMSE-1.5#PBF | MS-16E | E | $4.10 | $2.87 | Yes | |
| LT3022EMSE-1.5#TRPBF | MS-16E | E | $2.93 | Yes | ||
| LT3022EMSE-1.8#PBF | MS-16E | E | $4.10 | $2.87 | Yes | |
| LT3022EMSE-1.8#TRPBF | MS-16E | E | $2.93 | Yes | ||
| LT3022EMSE#PBF | MS-16E | E | $4.10 | $2.87 | Yes | |
| LT3022EMSE#TRPBF | MS-16E | E | $2.93 | Yes | ||
| LT3022IDHC#PBF | 5x3 DFN-16 | I | $4.47 | $3.13 | Yes | |
| LT3022IDHC#TRPBF | 5x3 DFN-16 | I | $3.19 | Yes | ||
| LT3022IMSE-1.2#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE-1.2#TRPBF | MS-16E | I | $3.35 | Yes | ||
| LT3022IMSE-1.5#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE-1.5#TRPBF | MS-16E | I | $3.35 | Yes | ||
| LT3022IMSE-1.8#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE-1.8#TRPBF | MS-16E | I | $3.35 | Yes | ||
| LT3022IMSE#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE#TRPBF | MS-16E | I | $3.35 | Yes | ||
| Buy Now • Request Samples | ||||||
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 |
|---|---|---|---|
| DC932A | LT3022EDHC Demo Board | VLDO Linear Regulator, 1V ≤ VIN ≤ 10V, Vout = 0.9V/1.0V/1.2V/1.5V/1.8V @ 1A | $125.00 | |
| 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 page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT3022IDHC#PBF | 5x3 DFN-16 | I | $4.47 | $3.13 | Yes | |
| LT3022IDHC#TRPBF | 5x3 DFN-16 | I | $3.19 | Yes | ||
| LT3022IMSE-1.2#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE-1.2#TRPBF | MS-16E | I | $3.35 | Yes | ||
| LT3022IMSE-1.5#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE-1.5#TRPBF | MS-16E | I | $3.35 | Yes | ||
| LT3022IMSE-1.8#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE-1.8#TRPBF | MS-16E | I | $3.35 | Yes | ||
| LT3022IMSE#PBF | MS-16E | I | $4.70 | $3.29 | Yes | |
| LT3022IMSE#TRPBF | MS-16E | I | $3.35 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- High Efficiency Linear Regulators
- Battery-Powered Systems
- Logic Supplies
- Post Regulator for Switching Supplies
- Wireless Modems
- FPGA Core Supplies
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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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- Step 3: If LTspice does not automatically open after clicking the link above, 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
To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.
Models for the following parts are available in LTspice:
LT3022
LT3022-1.2
LT3022-1.5
LT3022-1.8
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.
