ADP3050 Analog Devices, ADP3050 Datasheet - Page 2

• Manufacturer Part Number: ADP3050
• Description: 200 kHz, 1 A Step-Down High-Voltage Switching Regulator
• Manufacturer: Analog Devices

ADP3050
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
Applications Information .............................................................. 11
REVISION HISTORY
3/08—Rev. A to Rev. B
Updated Format .................................................................. Universal
Changes to General Description Section ...................................... 1
Changes to Figure 3 and Figure 5 ................................................... 6
Changes to Table 2 ............................................................................ 4
Deleted Table 4 ................................................................................ 14
Changes to Table 5 .......................................................................... 15
Deleted Table 8 ................................................................................ 15
Deleted Table 7 ................................................................................ 16
Deleted Table 9 ................................................................................ 16
Changes to Boosted Drive Stage Section and Thermal
Changes to Figure 27 ...................................................................... 20
Changes to Ordering Guide .......................................................... 23
ESD Caution .................................................................................. 4
Setting the Output Voltage ........................................................ 10
Inductor Selection ...................................................................... 11
Output Capacitor Selection ....................................................... 12
Considerations Sections ............................................................ 19
Rev. B | Page 2 of 24
Board Layout Guidelines ............................................................... 18
Outline Dimensions ....................................................................... 21
Catch Diode Selection ............................................................... 14
Input Capacitor Selection .......................................................... 14
Discontinous Mode Ringing ..................................................... 15
Setting the Output Voltage ........................................................ 15
Frequency Compensation ......................................................... 15
Current Limit/Frequency Foldback ......................................... 16
Bias Pin Connection .................................................................. 16
Boosted Drive Stage ................................................................... 16
Start-Up/Minimum Input Voltage ........................................... 16
Thermal Considerations ............................................................ 16
Typical Applications ................................................................... 18
Inverting (Buck Boost) Regulator ............................................ 19
Ordering Guide .......................................................................... 21