The ADP3303 is a member of the ADP330x family of precision low dropout anyCAP® voltage regulators. The ADP3303 stands out from the conventional LDOs with a novel architecture, an enhanced process and a new package. Its patented design requires only a 0.47 µF output capacitor for stability. This device is stable with any capacitor regardless of its ESR (Equivalent Series Resistance) value, including ceramic types (MLCC) for space restricted applications. The ADP3303 achieves exceptional accuracy of ±0.8% at room temperature and ±1.4% overall accuracy over temperature, line and load regulations. The dropout voltage of the ADP3303 is only 180 mV (typical) at 200 mA.
In addition to the new architecture and process, ADI's new proprietary thermally enhanced package (Thermal Coastline) can handle 1 W of power dissipation without external heatsink or large copper surface on the PC board. This keeps PC board real estate to a minimum and makes the ADP3303 very attractive for use in portable equipment.
The ADP3303 operates with a wide input voltage range from 3.2 V to 12 V and delivers a load current in excess of 200 mA. It features an error flag that signals when the device is about to lose regulation or when the short circuit or thermal overload protection is activated. Other features include shutdown and optional noise reduction capabilities. The ADP330x anyCAP® LDO family offers a wide range of output voltages and output current levels from 50 mA to 200 mA:
ADP3300 (50 mA, SOT-23)
ADP3301 (100 mA)
ADP3302 (100 mA, Dual Output)
|Title||Content Type||File Type|
|ADP3303:High Accuracy anyCAP™ 200 mA Low Dropout Linear Regulator Data Sheet (Rev C, 03/2014) (pdf, 125 kB)||Data Sheets|
AN-1072: How to Successfully Apply Low Dropout Regulators
(pdf, 105 kB)
This application note reviews the basic LDO topology, explains key specifications, and shows the application of low dropout voltage regulators in systems.
|AN-262: Low-Noise Low Drop-Out Regulator for Portable Equipment (pdf, 341 kB)||Application Notes|
|CN0155: Precision Weigh Scale Design Using a 24-Bit Sigma-Delta ADC with Internal PGA and AC Excitation (pdf, 238 kB)||Circuit Note|
|CN-0119: Precision Weigh Scale Design Using the AD7192 24-Bit Sigma-Delta ADC with Internal PGA (pdf, 190 kB)||Circuit Note|
|CN-0118: Precision Weigh Scale Design Using the AD7191 24-Bit Sigma-Delta ADC with Internal PGA (pdf, 214 kB)||Circuit Note|
|CN-0108: Weigh Scale Design Using the AD7781 20-Bit Sigma-Delta ADC with Internal PGA (pdf, 775 kB)||Circuit Note|
|CN-0107: Weigh Scale Design Using the AD7780 24-Bit Sigma-Delta ADC with Internal PGA (pdf, 838 kB)||Circuit Note|
|CN-0102: Precision Weigh Scale Design Using the AD7190 24-Bit Sigma-Delta ADC with Internal PGA (pdf)||Circuit Note|
Introduction to ADIsimPower
ADIsimPower is a smart selector and a collection of downloadable tools that produce complete and optimized power designs. Schematic, bill of materials, and performance data are customized to your specific needs in minutes.
|UG-444: Evaluating the AD5750 Industrial Current/Voltage Output Driver (pdf, 399 kB)||User Guides|
Voltage Regulators for Power Management
(Analog Dialogue, Vol. 30, No. 4, 1996)
|The Fundamentals of LDO Design and Applications||Technical Articles||HTML|
|Linear Regulators Parametric Search||Product Selection Guide||HTML|
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
|What are LDOs and how are they used?||FAQs/RAQs||HTML|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
|Title||Content Type||File Type|
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.
|ADIsim Design/Simulation Tools||ZIP|
Download files for ADIsimPower™ Voltage Regulator Design Tool
The individual Excel-based voltage regulator design tools used in ADIsimPower™.
|ADIsim Design/Simulation Tools||HTML|
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.