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
Designed for Automotive and Transportation Applications
AEC-Q100 data available for specific packages


Typical Application

LT3022 Typical Application
LT3022 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


LT3022 Package Drawing
LT3022 Package Drawing

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 NowRequest Samples
* 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.

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
Click here to view our complete list of demo boards

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 NowRequest Samples
* 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.

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

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Models for the following parts are available in LTspice:
LT3022
LT3022-1.2
LT3022-1.5
LT3022-1.8

Technical Support