ADP1864 Analog Devices, ADP1864 Datasheet - Page 2

• Manufacturer Part Number: ADP1864
• Description: Constant Frequency Current-Mode Step-Down DC-to-DC Controller in TSOT
• Manufacturer: Analog Devices

ADP1864
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Typical Applications Diagram ........................................................ 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ........................................................................ 8
REVISION HISTORY
4/08—Rev. A to Rev. B
Change General Description Section ............................................. 1
Deleted Figure 2 ................................................................................ 1
Change to FB Regulation Voltage Parameter ................................ 3
Change to MOSFET Section ......................................................... 11
Changes to Ordering Guide .......................................................... 14
2/07—Rev 0. to Rev. A
Updated Format .................................................................. Universal
Changes to Figure 1 .......................................................................... 1
Changes to General Description .................................................... 2
Changes to Specifications ................................................................ 3
Change to Figure 13 ......................................................................... 8
Replaced Layout Considerations Section .................................... 12
Replaced Example Applications Circuits Section ...................... 13
10/05—Revision 0: Initial Version
ESD Caution .................................................................................. 4
Loop Startup .................................................................................. 8
Short-Circuit Protection .............................................................. 9
Undervoltage Lockout (UVLO) ................................................. 9
Overvoltage Lockout Protection (OVP).................................... 9
Rev. B | Page 2 of 16
Applications Information .............................................................. 10
Layout Considerations ................................................................... 12
Example Applications Circuits ..................................................... 13
Outline Dimensions ....................................................................... 14
Soft Start .........................................................................................9
Duty Cycle ................................................................................... 10
Ripple Current ............................................................................ 10
Sense Resistor.............................................................................. 10
Inductor Value ............................................................................ 10
MOSFET ...................................................................................... 11
Diode ............................................................................................ 11
Input Capacitor ........................................................................... 11
Output Capacitor ........................................................................ 11
Feedback Resistors ..................................................................... 11
Ordering Guide .......................................................................... 14