Table of Contents
Table of Contents
Product Overview.......................................................................................................................................3
Table of Contents .......................................................................................................................................5
List of Figures.............................................................................................................................................7
List of Tables ............................................................................................................................................11
1
Signal Description.......................................................................................................................13
Pin Configuration.............................................................................................................................................13
Pin Type Definitions .......................................................................................................................................15
Pin Description................................................................................................................................................15
1.1
1.2
1.3
2
Electrical Specifications .............................................................................................................17
Absolute Maximum Ratings ............................................................................................................................17
Recommended Operating Conditions .............................................................................................................18
Electrical Characteristics ................................................................................................................................19
Switching Step-down Regulator......................................................................................................................20
LDO Regulator Controller................................................................................................................................21
2.1
2.2
2.3
2.4
2.5
3
Functional Description................................................................................................................23
3.1
Regulation and Startup ...................................................................................................................................24
3.1.1
Digital Soft Start................................................................................................................................24
3.2
3.3
Output Voltage—AnyVoltage™ Technology...................................................................................................26
Programmable Current Limit for the LDO Regulator Controller ......................................................................28
3.3.1
Maximum LDO Output Current .........................................................................................................29
3.4
3.5
3.6
3.7
Under Voltage Lockout....................................................................................................................................29
Over Voltage Protection..................................................................................................................................29
Thermal Shutdown..........................................................................................................................................30
Adaptive Transient Response.........................................................................................................................31
4
Functional Characteristics .........................................................................................................33
Startup Waveforms .........................................................................................................................................33
Switching Waveforms......................................................................................................................................36
Load Transient Waveforms .............................................................................................................................37
4.1
4.2
4.3
4.3.1
4.3.2
Step-Down Regulator .......................................................................................................................37
LDO Regulator..................................................................................................................................38
5
Typical Characteristics ...............................................................................................................39
Efficiency Graphs............................................................................................................................................39
Load Regulation..............................................................................................................................................40
5.1
5.2
Copyright © 2008 Marvell
April 14, 2008, 2.00
Doc. No. MV-S102809-00 Rev. G
Page 5
Document Classification: Proprietary
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
