ADP322CP-EVALZ Analog Devices

Evaluation Board User Guide UG-186 One Technology Way P.O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com User Guide for ADP322/ADP323 Evaluation Board FEATURES GENERAL DESCRIPTION Bias voltage range (VBIAS): 2.5 V to 5.5 V The ADP322/ADP323 evaluation board is used to demonstrate the LDO input voltage range (VIN1/VIN2, VIN3): 1.8 V to 5.5 V functionality of the ADP322/ADP323 series of linear regulators. Output current range: 0 mA to 200 mA per output Simple device measurements, such as line and load regulation, Output voltage accuracy: 1% dropout voltage, and ground current, can be demonstrated with Operating temperature range: 40C to +125C two voltage supplies, a few voltmeters, current meters, and load resistors. For more details about the ADP322/ADP323 linear regulators, see the ADP322/ADP323 data sheet. EVALUATION BOARD Figure 1. ADP322/ADP323 Evaluation Board PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 Page 1 of 12 09299-001UG-186 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Dropout Voltage Measurements..................................................5 General Description ......................................................................... 1 Ground and Bias Current Measurements ......................................6 Evaluation Board .............................................................................. 1 Ground Current Measurement....................................................6 Revision History ............................................................................... 2 Bias Current Measurement ..........................................................7 Evaluation Board Hardware and Schematic ................................. 3 Printed Circuit Board Layout Considerations...............................8 Output Voltage Measurements ....................................................... 4 Ordering Information.......................................................................9 Line Regulation Measurements .................................................. 4 Bill of Materials..............................................................................9 Load Regulation Measurements................................................. 5 Related Links......................................................................................9 REVISION HISTORY 10/10Revision 0: Initial Version Rev. 0 Page 2 of 12