ADP3303

High Accuracy anyCAP® 200 mA Low Dropout Linear Regulator
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Product Details

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)

Product Lifecycle

checked Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits

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EVAL-AD7928 Circuit Diagram

Product Details

The EVAL-AD7928SDZ is a full featured evaluation board that allows the user to easily evaluate all the features of the AD7928 analog-to-digital converter (ADC). The evaluation board can be controlled by the

EVAL-SDP-CB1Z SDP board via a 120-way SDP connector (J102). The SDP board allows the evaluation board to be controlled through the USB port of a PC using the AD7928 evaluation software, which is available for download from the product page or from the installer CD included in the evaluation board kit.

On-board components include the following:
  • ADP1613: 20 V, 2 A, step up, dc-to-dc regulator
  • ADP7104ARDZ-5.0: 5 V, low noise LDO
  • AD780: high precision, band gap voltage reference
  • ADG3308: bidirectional logic level translator
  • AD8022: dual high speed, low noise operational amplifier
  • AD8066: dual FastFET™, low noise operational amplifier
  • ADA4000-2: dual low cost, precision JFET input operational amplifier
  • ADM1185: quad voltage monitor and sequencer
  • ADP3303: high accuracy anyCAP®, 200 mA, low dropout linear regulator


Evaluation Kit Contents
EVAL-AD7928SDZ evaluation board
Evaluation software CD for the AD7928
Mains power supply adapter
Screw/nut kit

Additional Equipment Needed
EVAL-SDP-CB1Z system demonstration platform
PC running Windows Vista or Windows 7 with USB 2.0 port
Signal source
SMB cables
USB cable


Online Resources

Documents Needed
AD7928 data sheet
EVAL-AD7928SDZ user guide

Required Software
AD7928 evaluation software
Design and Integration Files
Schematics, layout files, bill of materials

Tools & Simulations

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Design Tools

Reference Designs

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CN0118 Circuit Diagram

CN0119 Circuit Diagram

CN0102 Circuit Diagram

CN0102 Photo

CN0108 Circuit Diagram

CN0108 Photo

CN0155 Circuit Diagram

CN0155 Photo

CN0107 Circuit Diagram

CN0107 Photo

Design Resources

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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.

ADP3303 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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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.


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