ADP2109 Analog Devices, ADP2109 Datasheet - Page 2

• Manufacturer Part Number: ADP2109
• Description: Compact 600 mA, 3 MHz, Step-Down Converter with Output Discharge
• Manufacturer: Analog Devices

ADP2109
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Typical Applications Circuit ............................................................ 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
REVISION HISTORY
4/10—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 15
4/09—Revision 0: Initial Version
Input and Output Capacitor, Recommended Specifications .. 3
Thermal Resistance ...................................................................... 4
ESD Caution .................................................................................. 4
Control Scheme .......................................................................... 10
PWM Mode ................................................................................. 10
Power Save Mode ........................................................................ 10
Rev. A | Page 2 of 16
Applications Information .............................................................. 12
Evaluation Board ............................................................................ 14
Outline Dimensions ....................................................................... 15
Enable/Shutdown ....................................................................... 11
Discharge Switch ........................................................................ 11
Short-Circuit Protection ............................................................ 11
Undervoltage Lockout ............................................................... 11
Thermal Protection .................................................................... 11
Soft Start ...................................................................................... 11
Current Limit .............................................................................. 11
100% Duty Operation ................................................................ 11
External Component Selection ................................................ 12
Thermal Considerations ............................................................ 13
PCB Layout Guidelines .............................................................. 13
Ordering Guide .......................................................................... 15