88PG8226A1-NFE1C000 Marvell, 88PG8226A1-NFE1C000 Datasheet - Page 9

• Manufacturer Part Number: 88PG8226A1-NFE1C000
• Manufacturer: Marvell

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Copyright © 2008 Marvell
April 23, 2008, 2.00
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Signal Description ........................................................................................................................... 11
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Electrical Specifications ................................................................................................................. 15
Functional Description.................................................................................................................... 19
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Functional Characteristics.............................................................................................................. 31
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Typical Application Circuit: Output 1.8V/1.5A and 1.2V/1.5A .............................................................3
88PG82XX Family 3X4mm QFN-20 Package—Top View................................................................11
88PG82XX Block Diagram ...............................................................................................................19
Output Voltage Window ....................................................................................................................20
Startup without Sequencing ..............................................................................................................20
Startup with Sequencing and Soft Start (C
Fast Startup (0.8V, 1.2V, 1.8V, 2.5V, 3.3V)
Soft Start up (0.8V, 1.2V, 1.8V, 2.5V, 3.3V) .....................................................................................21
Inrush Current with C
Serial Programmability......................................................................................................................23
Startup Sequence ............................................................................................................................27
VSET = 2.5V and PSET = -5% .........................................................................................................27
UVLO and OVP Waveforms .............................................................................................................28
Power-On Reset Waveforms ............................................................................................................28
Adaptive Transient Response ..........................................................................................................29
Startup Using the Enable Pin ...........................................................................................................31
Turn Off Using the Enable Pin ..........................................................................................................31
Startup Sequence ............................................................................................................................31
Hot Plug ............................................................................................................................................31
UVLO and OVP Thresholds..............................................................................................................32
Input Soft Start and Start up Sequence ............................................................................................32
Step-Down Short-Circuit Response .................................................................................................32
Switching Waveforms - PWM mode ................................................................................................33
Switching Waveforms - PWM mode .................................................................................................33
Switching Waveforms - DCM Mode .................................................................................................33
Switching Waveforms - DCM Mode-Zoom........................................................................................33
PWM Output Ripple Voltage ............................................................................................................34
Fast Load Rise Time ........................................................................................................................34
Slow Load Rise Time ........................................................................................................................34
Fast Load Fall Time .........................................................................................................................35
Slow Load Fall Time .........................................................................................................................35
Load Transient Response ................................................................................................................35
Double-Pulsed Load Response ........................................................................................................35
OUT
Document Classification: Proprietary Information
= 100 μF ..................................................................................................21
OUT
= 22 μF) ...................................................................20
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Doc. No. MV-S103563-00 Rev. C
List of Figures
Page 9