Contents

1

Application schematic .............................................................2

2

Pin configuration ..................................................................3

3

Functional pin description .........................................................4

4

Maximum ratings ..................................................................5

5

Electrical characteristics...........................................................6

6

ST1PS03 block diagram............................................................8

7

Operation description..............................................................9

7.1

Power save mode .............................................................. 9

7.2

Output voltage ................................................................. 9

7.3

Output discharge and UVLO ..................................................... 9

7.4

Soft-start and current limitation ................................................... 9

7.5

100% duty cycle operation ....................................................... 9

7.6

Auxiliary output (VOUT_AUX) .................................................... 9

7.7

Power Good flag .............................................................. 10

8

Typical performance characteristics ..............................................11

9

Package information..............................................................16

9.1

TQFN12 (2.0x1.7x0.55 mm) package information .................................. 16

9.2

TQFN12 (2.0x1.70x0.55 mm) packing information .................................. 18

10

Ordering information .............................................................20

Revision history .......................................................................21

ST1PS03

Contents

DS13801 - Rev 1

page 22/25