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ADP2443ACPZN-R7 Datasheet(PDF) 3 Page - Analog Devices |
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ADP2443ACPZN-R7 Datasheet(HTML) 3 Page - Analog Devices |
3 / 25 page ADP2443 Data Sheet Rev. 0 | Page 2 of 24 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Typical Application Circuit ............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Functional Block Diagram .............................................................. 3 Specifications..................................................................................... 4 Absolute Maximum Ratings............................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 13 Control Scheme .......................................................................... 13 Precision Enable/Shutdown ...................................................... 13 Internal Regulator (VREG)....................................................... 13 Bootstrap Circuitry .................................................................... 13 Oscillator ..................................................................................... 13 Synchronization.......................................................................... 13 Soft Start ...................................................................................... 14 Power Good................................................................................. 14 Peak Current-Limit and Short-Circuit Protection................. 14 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....................................................... 17 Programming Input Voltage UVLO ........................................ 17 Slope Compensation Setting..................................................... 17 Compensation Design ............................................................... 17 ADIsimPower Design Tool ....................................................... 18 Design Example .............................................................................. 19 Output Voltage Setting .............................................................. 19 Frequency Setting....................................................................... 19 Inductor Selection ...................................................................... 19 Output Capacitor Selection....................................................... 20 Slope Compensation Setting..................................................... 20 Compensation Components..................................................... 20 Soft Start Time Program ........................................................... 20 Input Capacitor Selection.......................................................... 20 Recommended External Components .................................... 21 Printed Circuit Board Layout Recommendations ..................... 22 Typical Applications Circuits........................................................ 23 Outline Dimensions....................................................................... 24 Ordering Guide .......................................................................... 24 REVISION HISTORY 9/2016—Revision 0: Initial Version |
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