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  4. Positive Linear Regulators (LDO)
  5. LT3022


Overview

Features and Benefits

  • 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 × 3mm) DFN and MSOP Packages

Product Details

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 × 3mm) DFN and MSOP packages.

Applications

  • High Efficiency Linear Regulators
  • Battery-Powered Systems
  • Logic Supplies
  • Post Regulator for Switching Supplies
  • Wireless Modems
  • FPGA Core Supplies

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations

LTspice

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, 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.

LTspice

Models for the following parts are available in LTspice:

LT3022
LT3022-1.2
LT3022-1.5
LT3022-1.8

Reference Designs (5)

Product Recommendations

LT3022 Companion Parts

Recommended Related Parts

Design Resources

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 Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT3022EDHC#PBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
LT3022EDHC#TRPBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
LT3022EMSE#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022EMSE#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022EMSE-1.2#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022EMSE-1.2#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022EMSE-1.5#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022EMSE-1.5#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022EMSE-1.8#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022EMSE-1.8#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IDHC#PBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
LT3022IDHC#TRPBF Material Declaration Reliability Data 16-Lead DFN (5mm x 3mm w/ EP)
LT3022IMSE#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IMSE#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IMSE-1.2#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IMSE-1.2#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IMSE-1.5#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IMSE-1.5#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IMSE-1.8#PBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
LT3022IMSE-1.8#TRPBF Material Declaration Reliability Data 16-Lead MSOP w/ EP
Wafer Fabrication Data R531 Reliability Data

PCN-PDN Information

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Sample & Buy


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Evaluation Boards

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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.