ADP2386 データシートの表示（PDF） - Analog Devices
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ADP2386 Datasheet PDF : 24 Pages
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ADP2386
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
REVISION HISTORY
10/15—Rev. B to Rev. C
Changes to Inductor Selection Section........................................ 16
7/14—Rev. A to Rev. B
Changes to Table 2 and Table 3....................................................... 5
Changes to Inductor Selection Section........................................ 15
Changes to Figure 33...................................................................... 19
Changes to Compensation Components Section....................... 20
Updated Outline Dimensions ....................................................... 24
4/13—Rev. 0 to Rev. A
Changes to Figure 4 and Figure 7 ................................................... 7
Updated Outline Dimensions ....................................................... 23
Changes to Ordering Guide .......................................................... 23
11/12—Revision 0: Initial Version
Data Sheet
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 ....................................................... 18
Design Example .............................................................................. 19
Output Voltage Setting (Design Example).............................. 19
Frequency Setting....................................................................... 19
Inductor Selection (Design Example) ..................................... 19
Output Capacitor Selection (Design Example)...................... 20
Compensation Components..................................................... 20
Soft Start Time Program ........................................................... 20
Input Capacitor Selection (Design Example) ......................... 20
Recommended External Components .................................... 21
Circuit Board Layout Recommendations ................................... 22
Typical Applications Circuits........................................................ 23
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 24
Rev. C | Page 2 of 24
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