1. Products
  2. Power Management
  3. LDO Linear Regulators
  4. Positive Linear Regulators (LDO)
  5. ADP3338


Features and Benefits

  • High Accuracy Over Line and Load: ±0.8% @ 25°C, ±1.4% Over Temperature
  • Ultralow Dropout Voltage: 190 mV (Typ) @ 1 A
  • Requires Only CO = 1 µF for Stability
  • anyCAP = Stable with Any Type of Capacitor (Including MLCC)
  • Current and Thermal Limiting
  • Low Noise
  • 2.7 V to 8 V Supply Range
  • –40°C to +85°C Ambient Temperature Range
  • SOT-223 Package

Product Details

The ADP3338 is a member of the ADP330x family of precision low dropout anyCAP® voltage regulators. The ADP3338 operates with an input voltage range of +2.7 V to +8 V and delivers a load current up to 1 A. The ADP3338 stands out from the conventional LDOs with a novel architecture and an enhanced process that enables it to offer performance advantages and higher output current than its competition. Its patented design requires only a 1.0 µF output capacitor for stability. This device is insensitive to output capacitor Equivalent Series Resistance (ESR), and is stable with any good quality capacitor, including ceramic (MLCC) types for space-restricted applications. The ADP3338 achieves exceptional accuracy of ±0.9% at room temperature and ±1.8% over temperature, line and load variations. The dropout voltage of the ADP3338 is only 200 mV (typical) at 1 A. This device also includes a safety current limit and thermal overload protection. The ADP3338 has ultralow quiescent current 130 µA (typ) in light load situations.


  • Notebook, palmtop computers
  • SCSI terminators
  • Battery-powered systems
  • Bar code scanners
  • Camcorders, cameras
  • Home entertainment systems
  • Networking systems
  • DSP/ASIC supplies

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Tools & Simulations

Design Tool

ADI Linear Regulator Design Tool and Parametric Search

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

Reference Designs (1)

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
ADP3338AKCZ-1.5-R7 Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-1.5-RL Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-1.8-R7 Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-1.8-RL Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-2.5-RL Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-2.5RL7 Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-2.85R7 Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-3-RL7 Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-3.3-RL Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-3.3RL7 Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-5-R7 Material Declaration Reliability Data 3-Lead SOT-223
ADP3338AKCZ-5-REEL Material Declaration Reliability Data 3-Lead SOT-223
Wafer Fabrication Data

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Sample & Buy

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