PI33XX-01 datasheet(2/26 Pages) VICOR

2 / 26 page

vicorpower.com

Rev 1.1

Cool-Power

800 735.6200

11/2012

Page 2 of 26

PI33XX-X1

Contents

Order Information ...................................................... 3

Pin Description............................................................ 4

Package Pin-Out.......................................................... 4

Absolute Maximum Ratings........................................ 5

PI3311-X1 (1.0 Vout) Electrical Characteristics........... 6

PI3318-X1 (1.8 Vout) Electrical Characteristics........... 9

PI3312-X1 (2.5 Vout) Electrical Characteristics......... 12

PI3301-X1 (3.3 Vout) Electrical Characteristics......... 15

Functional Description.............................................. 18

ENABLE (EN) .........................................................18

Switching Frequency Synchronization..................18

Output Voltage Trim.............................................18

Soft-Start ..............................................................18

Remote Sensing....................................................18

Output Current Limit Protection ..........................19

Input Under-Voltage Lockout...............................19

Input Over Voltage Lockout .................................19

Output Over Voltage Protection ..........................19

Over Temperature Protection ..............................19

Pulse Skip Mode (PSM) ........................................19

Variable Frequency Operation .............................20

Parallel Operation ................................................20

2C Interface Operation ....................................... 20

Application Description.............................................21

Output Voltage Trim ............................................ 21

Soft-Start Adjust and Tracking ............................. 22

Inductor Pairing ................................................... 22

Layout Guidelines......................................................23

Recommended PCB Footprint and Stencil ................24

Package Drawings .....................................................25

Warranty ...................................................................26

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