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.


  • 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® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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Reference Designs (5)

Product Recommendations

LT3022 Companion Parts

Recommended Related Parts

Design Resources

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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.