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ADP2302/ADP2303: 2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators (Rev. A)7/19/2010PDF1002 kB
ADP2302
2A, 700KHz NonSynchronous Step-Down DC-DC Switching Regulator
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Overview
Features and Benefits
- 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
- Output voltage down to 0.8 V
- Supported by ADIsimPower™ design tool
- See datasheet for additional features
Product Details
The ADP2302 / ADP2303 are fixed frequency, current-mode control, step-down, dc-to-dc regulators with an integrated power MOSFET. The ADP2302 / ADP2303 can run from an input voltage of 3.0 V to 20 V, which makes them suitable for a wide range of applications. The output voltage of the ADP2302 / ADP2303 can be down to 0.8 V for the adjustable version, while the fixed output version is available in preset output voltage options of 5.0 V, 3.3 V, and 2.5 V. The 700 kHz operating frequency allows small inductor and ceramic capacitors to be used, providing a compact solution. Current mode control provides fast and stable line and load transient performance. The ADP2302 / ADP2303 have integrated soft start circuitry to prevent a large inrush current at power-up. The power-good signal can be used to sequence devices that have an enable input. The precision enable threshold voltage allows the part to be easily sequenced from other input/output supplies. Other key features include undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP).
The ADP2302/ADP2303 devices are available in the 8-lead, SOIC package with exposed paddle and are rated for the −40oC to +125oC junction temperature range.
APPLICATIONS
- Intermediate power rail conversion
- DC-to-DC point of load applications
- Communications and networking equipments
- Industrial and instrumentation
- Healthcare and Medical
- Consumer electronics
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (Rev. 0)2/14/2015PDF640 kB
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UG-189: Evaluation Board for the 2 A/3 A, 20 V, Nonsynchronous Step-Down Regulators9/21/2010PDF883 kB
Tools & Simulations
LTspice
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.
Models for the following parts are available in LTspice:
ADP2302
Design Tools
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.
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.
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADP2302ARDZ | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| ADP2302ARDZ-2.5 | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| ADP2302ARDZ-2.5-R7 | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| ADP2302ARDZ-3.3 | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| ADP2302ARDZ-3.3-R7 | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| ADP2302ARDZ-5.0 | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| ADP2302ARDZ-5.0-R7 | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| ADP2302ARDZ-R7 | Material Declaration | Reliability Data | 8-Lead SOIC w/ EP | |
| Wafer Fabrication Data |
Sample & Buy
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.