ADP3309
ADP3309
NOT RECOMMENDED FOR NEW DESIGNSanyCAP® 100 mA Low Dropout Linear Regulator
- Part Models
- 3
- 1ku List Price
- Starting From $1.52
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Overview
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The ADP3309 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators. It is pin-for-pin and functionally compatible with National’s LP2981, but offers performance advantages. The ADP3309 stands out from conventional LDOs with a novel architecture and an enhanced process. Its patented design requires only a 0.47 μF output capacitor for stability. This device is stable with any type of capacitor regardless of its equivalent series resistance (ESR) value, including ceramic types for space restricted applications. The ADP3309 achieves ±1.2% accuracy at room temperature and ±2.2% overall accuracy over temperature, line, and load regulations. The dropout voltage of the ADP3309 is only 120 mV (typical) at 100 mA. This device also includes a current limit and a shutdown feature. In shutdown mode, the ground current is reduced to ~1 μA.
The ADP3309 operates with a wide input voltage range from 2.8 V to 12 V and delivers a load current in excess of 100 mA. The ADP3309 anyCAP LDO offers a wide range of output voltages.
Applications
- Cellular telephones
- Notebook, palmtop computers
- Battery-powered systems
- PCMCIA regulator
- Bar code scanners
- Camcorders, cameras
Documentation
Data Sheet 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 |
|---|---|---|---|
| ADP3309ARTZ-2.5RL7 | 5-Lead SOT-23 | ||
| ADP3309ARTZ-3.3-R7 | 5-Lead SOT-23 | ||
| ADP3309ARTZ-3.6-R7 | 5-Lead SOT-23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 8, 2025 - 24_0103 Qualification of Wafer Fabrication Site at Analog Devices, Inc. Camas for CBCMOS2 Products |
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| ADP3309ARTZ-2.5RL7 | PRODUCTION | |
| ADP3309ARTZ-3.3-R7 | PRODUCTION | |
| ADP3309ARTZ-3.6-R7 | PRODUCTION | |
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Feb 4, 2010 - 10_0009 Halogen Free Material Change for SOT_23 Products |
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| ADP3309ARTZ-2.5RL7 | PRODUCTION | |
| ADP3309ARTZ-3.3-R7 | PRODUCTION | |
| ADP3309ARTZ-3.6-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ADP7112 | RECOMMENDED FOR NEW DESIGNS | 20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator |
Tools & Simulations
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.
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