ADP2303

RECOMMENDED FOR NEW DESIGNS

3A, 700KHz NonSynchronous Step-Down DC-DC Switching Regulator

Data Sheet (Rev. A) Product Selection Table

Part Models: 8
1ku List Price: Starting From $1.46

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Part Details

Wide input voltage range: 3.0 V to 20 V
Maximum load current:
2 A for ADP2302
3 A for ADP2303

±1.5% output accuracy over temperature range
Output voltage down to 0.8 V
700 kHz switching frequency
See datasheet for additional features

Part Models: 8
1ku List Price: Starting From $1.46

Documentation

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
ADP2303ARDZ	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADP2303ARDZ-2.5	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADP2303ARDZ-2.5-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADP2303ARDZ-3.3	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADP2303ARDZ-3.3-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADP2303ARDZ-5.0	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADP2303ARDZ-5.0-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADP2303ARDZ-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
ADP2384	RECOMMENDED FOR NEW DESIGNS	20 V, 4 A, Synchronous Step-Down DC-to-DC Regulator
ADP2386	RECOMMENDED FOR NEW DESIGNS	20 V, 6 A, Synchronous Step-Down DC-to-DC Regulator

Tools & Simulations

LTspice 1

ADP2303 - Step-Down (Buck) Regulators

Models for the following parts are available in LTspice:

ADP2303

ADP230x Inverting Buck-Boost Regulator Design Tool

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

Open Tool

ADP230x Buck Regulator Design Tool

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

Open Tool

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

ADP2303 Evaluation Board

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Product Details

The ADP2302/ADP2303 are 2 A/3 A, 20 V, nonsynchronous step-down, dc-to-dc regulators with an integrated power MOSFET in a SOIC package with an exposed paddle. The ADP2302/ ADP2303 evaluation boards are complete buck regulator solutions that allow users to evaluate the performance of the regulators.

The ADP2302/ADP2303 integrated soft-start circuitry prevents inrush current at power-up. The power-good output indicates that the output voltage is regulated within tolerance, and it can be used to sequence devices that have an enable input. The precision enable feature allows the part to be easily sequenced from external supplies. Other key features include undervoltage lockout (UVLO), output overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP).