EVAL-ADP1864| Application Note
Evaluation Board for ADP1864 with Web Design Tool EVAL-ADP1864
FEATURES
Powerful companion design tool for quick design times Input voltage range: 3.15 V to 14 V Output voltage range: 0.8 V to VIN Output current: up to 10 A Accommodating layout with multiple packages for diodes, PFETs, input and output capacitors, and inductors 3 PFETs in parallel for high current applications Programmable compensation for optimizing transient performance Programmable current limit with sense resistor(s) Enable/shutdown logic Switching frequency: 580 kHz Kelvin connections for measuring input and output voltage
EVALUATION BOARD DESCRIPTION
The ADP1864 evaluation board is designed to be used with the ADP1864 Buck Design Software. The evaluation board is configured to provide 3.3 V output at 3 A over an input voltage range of 9 V to 12 V. Through a versatile layout that accommodates several packages and a powerful companion design tool, the ADP1864 evaluation board can provide a wide variety of solutions, including up to a 5.0 V output at 10 A from a 12 V input. Kelvin connection terminals provide an accurate means for measuring the input and output voltages. The evaluation board is designed to use the ADP1864 as an asynchronous, step-down dc-to-dc converter that uses a current mode pulse-width modulation control scheme. The ADP1864 drives a P-channel MOSFET that regulates an output voltage as low as 0.8 V with 1.25% accuracy (up to 85 C), for up to 10 A load currents, from input voltages as high as 14 V. The ADP1864 provides system flexibility by allowing accurate setting of the current limit with an external resistor, while the output voltage
is easily adjustable using two external resistors. For more details, see the ADP1864 data sheet.
SHIPPED CONFIGURATION
Fully populated ADP1864-EVALZ Input voltage range: 9 V to 12 V Output voltage: 3.3 V Output current: 3 A Bare board ADP1864-BL-EVALZ Populated with only ADP1864
EVALUATION BOARD PHOTO
Figure 1. ADP1864-EVALZ
Rev. B
Evaluation boards are only intended for device evaluation and not for production purposes. Evaluation boards are supplied "as is" and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectual property by application or use of evaluation boards. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Analog Devices reserves the right to change devices or specifications at any time without notice. Trademarks and registered trademarks are the property of their respective owners. Evaluation boards are not authorized to be used in life support devices or systems.
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