ADP3331
ADP3331
NOT RECOMMENDED FOR NEW DESIGNSHigh Accuracy, Ultra-Low Quiescent Current LDO; SOT-23
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Overview
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The ADP3331 is a member of the ADP330x family of precision low dropout anyCAP™ voltage regulators. The ADP3331 operates with an input voltage range of 2.9 V to 12 V and delivers a load current up to 200 mA. The ADP3331 stands out from the conventional LDO's with a novel architecture and an enhanced process which enables it to offer performance advantages and higher output current than its compeititon. Its patented design requires only a 0.47 µF output capacitor for stability. This device is insensitive to capacitor Equivalent Series Resistance (ESR), and is stable with any good quality capacitor, including ceramic (MLCC) types for space restricted applications. The ADP3331 achieves exceptional accuracy of ± 0.7% at room temperature and ± 1.4% overall accuracy over temperature, line and load variations. The dropout voltage of the ADP3331 is only 140 mV (typical) at 200 mA. This device also includes a safety current limit, thermal overload protection and a shutdown feature. In shutdown mode, the ground current is reduced to less than 2 µA. The ADP3331 has ultralow quiescent current 34 µA (typical) in light load situations. The SOT-23-6 package has been thermally enhanced using Analog Device's proprietary Chip-on-Lead™ feature to maximize power dissipation.
Documentation
Data Sheet 1
User Guide 1
Application Note 2
Frequently Asked Question 1
Brochure 1
Analog Dialogue 2
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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| ADP3331ARTZ-REEL7 | 6-Lead SOT-23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
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Jul 8, 2025 - 24_0103 Qualification of Wafer Fabrication Site at Analog Devices, Inc. Camas for CBCMOS2 Products |
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| ADP3331ARTZ-REEL7 | PRODUCTION | |
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Dec 2, 2022 - 22_0253 Addition of UTAC Thailand as an Alternate Assembly Site for SOT23, SC70 and TSOT Packages/Devices |
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| ADP3331ARTZ-REEL7 | PRODUCTION | |
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Feb 4, 2010 - 10_0009 Halogen Free Material Change for SOT_23 Products |
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| ADP3331ARTZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| ADP7102 | RECOMMENDED FOR NEW DESIGNS | 20 V, 300 mA, Low Noise, CMOS LDO |
Tools & Simulations
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