Table of Contents
Table of Contents
Product Overview.......................................................................................................................................3
Table of Contents .......................................................................................................................................5
List of Tables ..............................................................................................................................................7
List of Figures.............................................................................................................................................9
1
Signal Description.......................................................................................................................11
Pin Configuration.............................................................................................................................................11
Pin Description................................................................................................................................................12
1.1
1.2
1.2.1
Pin Types..........................................................................................................................................12
2
Electrical Specifications .............................................................................................................15
Absolute Maximum Ratings ............................................................................................................................15
Recommended Operating Conditions .............................................................................................................15
Electrical Characteristics.................................................................................................................................16
Switching Step-down Regulator......................................................................................................................17
2.1
2.2
2.3
2.4
3
Functional Description................................................................................................................19
3.1
Regulation and Start-up ..................................................................................................................................19
3.1.1
Soft Start and Sequencing................................................................................................................20
3.2
Output Voltage Settings ..................................................................................................................................22
3.2.1
3.2.2
3.2.3
Logic Programmability ......................................................................................................................22
Serial Programmability......................................................................................................................23
Output Voltage – AnyVoltage™ Technology ....................................................................................25
3.3
3.4
3.5
3.6
3.7
Undervoltage Lockout (UVLO) ........................................................................................................................28
Over Voltage Protection (OVP) .......................................................................................................................28
Power-On Reset (POR) ..................................................................................................................................28
Thermal Shutdown..........................................................................................................................................29
Adaptive Transient Response.........................................................................................................................29
4
Functional Characteristics .........................................................................................................31
Start-Up Waveforms........................................................................................................................................31
Short-Circuit Waveforms.................................................................................................................................32
Switching Waveforms......................................................................................................................................33
Load Transient Waveforms .............................................................................................................................34
4.1
4.2
4.3
4.4
4.4.1
4.4.2
Step-Down Regulator .......................................................................................................................34
Cross-Talk Waveforms .....................................................................................................................36
4.5
Output Voltage Transient Waveforms.............................................................................................................37
4.5.1 Step-Down Regulator .......................................................................................................................37
Copyright © 2008 Marvell
April 23, 2008, 2.00
Doc. No. MV-S103563-00 Rev. C
Page 5
Document Classification: Proprietary Information
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
