ADP5020ACPZ-R7 Analog Devices Inc, ADP5020ACPZ-R7 Datasheet - Page 2

• Manufacturer Part Number: ADP5020ACPZ-R7
• Description: IC REG LDO DUAL BUCK 20LFCSP
• Manufacturer: Analog Devices Inc

Specifications of ADP5020ACPZ-R7

• Design Resources: Powering AD9272 with ADP5020 Switching Regulator PMU for Increased Efficiency (CN0135)
• Applications: Handheld/Mobile Devices
• Current - Supply: 10mA
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-LFCSP
• Supply Voltage: 5.5V
• No. Of Step-down Dc - Dc Converters: 2
• No. Of Ldo Regulators: 1
• Digital Ic Case Style: LFCSP
• No. Of Pins: 20
• No. Of Regulated Outputs: 3
• Operating Temperature Range: -40°C To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADP5020ACPZ-R7TR

ADP5020
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Applications Circuit ............................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Functional Block Diagram .............................................................. 3
Specifications ..................................................................................... 4
Absolute Maximum Ratings ............................................................ 8
Pin Configuration and Function Descriptions ............................. 9
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 13
REVISION HISTORY
4/09—Revision 0: Initial Version
Switching Specifications .............................................................. 5
DC-to-DC Conversion Specifications, Buck 1 Regulator ....... 5
DC-to-DC Conversion Specifications, Buck 2 Regulator ....... 6
VOUT3 Specifications, Low Dropout (LDO) Regulator ........ 6
I
Thermal Resistance ...................................................................... 8
ESD Caution .................................................................................. 8
Circuit Operation ....................................................................... 13
Internal Compensation .............................................................. 13
Current Limiting and Short-Circuit Protection ..................... 13
Synchronization .......................................................................... 13
I
2
2
C Timing Specifications ............................................................ 7
C Interface ................................................................................ 13
Rev. 0 | Page 2 of 28
Control Registers ............................................................................ 14
Power-Up/Power-Down Sequence ............................................... 17
Applications Information .............................................................. 21
Layout Recommendations ............................................................. 23
Outline Dimensions ....................................................................... 25
Undervoltage Lockout ............................................................... 13
Thermal Shutdown .................................................................... 13
Device Address ........................................................................... 14
Register Map ............................................................................... 14
Register Descriptions ................................................................. 14
Sequencer .................................................................................... 17
Default Power-On Sequence with EN Pin .............................. 17
Power-On Sequence Using the I
Power-Up/Power-Down State Flow ......................................... 20
Power Good Status ..................................................................... 21
XSHTDN Logic .......................................................................... 21
Components Selection ............................................................... 21
LDO Input Filter ......................................................................... 22
Applications Schematic ............................................................. 23
PCB Board Layout Recommendations .................................... 24
External Component List .......................................................... 24
Ordering Guide .......................................................................... 25
2
C Interface .............................. 19