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744325120 Datasheet(PDF) 2 Page - Analog Devices |
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744325120 Datasheet(HTML) 2 Page - Analog Devices |
2 / 24 page ADP2384 Data Sheet Rev. 0 | Page 2 of 24 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Typical Applications Circuit............................................................ 1 General Description......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Typical Performance Characteristics ............................................. 7 Functional Block Diagram ............................................................ 11 Theory of Operation ...................................................................... 12 Control Scheme .......................................................................... 12 Precision Enable/Shutdown ...................................................... 12 Internal Regulator (VREG)....................................................... 12 Bootstrap Circuitry .................................................................... 12 Oscillator ..................................................................................... 12 Synchronization.......................................................................... 12 Soft Start ...................................................................................... 13 Power Good................................................................................. 13 Peak Current-Limit and Short-Circuit Protection................. 13 Overvoltage Protection (OVP)................................................. 14 Undervoltage Lockout (UVLO) ............................................... 14 Thermal Shutdown .................................................................... 14 Applications Information .............................................................. 15 Input Capacitor Selection.......................................................... 15 Output Voltage Setting .............................................................. 15 Voltage Conversion Limitations............................................... 15 Inductor Selection...................................................................... 15 Output Capacitor Selection....................................................... 16 Programming the Input Voltage UVLO.................................. 17 Compensation Design ............................................................... 17 ADIsimPower Design Tool ....................................................... 17 Design Example.............................................................................. 18 Output Voltage Setting .............................................................. 18 Frequency Setting....................................................................... 18 Inductor Selection...................................................................... 18 Output Capacitor Selection....................................................... 19 Compensation Components..................................................... 19 Soft Start Time Program ........................................................... 19 Input Capacitor Selection.......................................................... 19 Recommended External Components .................................... 20 Circuit Board Layout Recommendations ................................... 21 Typical Applications Circuits........................................................ 22 Outline Dimensions....................................................................... 23 Ordering Guide .......................................................................... 23 REVISION HISTORY 8/12—Revision 0: Initial Version |
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