Contents

ST1S15

2/27

DocID023280 Rev 4

Contents

1

Application schematic .................................................................... 5

2

Pin configuration ............................................................................. 6

3

Maximum ratings ............................................................................. 7

4

Electrical characteristics ................................................................ 8

5

Typical performance characteristics ........................................... 10

6

Block schematic ............................................................................ 13

7

Detailed description ...................................................................... 14

7.1

General description ......................................................................... 14

7.2

Mode transition................................................................................ 14

7.3

Soft-start ......................................................................................... 15

7.4

Short-circuit protection .................................................................... 15

7.5

Undervoltage lockout (UVLO) ......................................................... 15

7.6

Thermal protection .......................................................................... 16

7.7

Overcurrent protection .................................................................... 16

7.8

Enable function ............................................................................... 16

8

Application information ................................................................ 17

8.1

Input and output capacitors ............................................................. 17

8.2

Inductor ........................................................................................... 17

8.3

Layout guidelines ............................................................................ 18

9

Different output voltage versions of the ST1S15 available on

request.................................................................................................... 19

10

Package information ..................................................................... 20

10.1

Flip Chip 6 package information...................................................... 21

10.2

Packing information......................................................................... 24

11

Revision history ............................................................................ 26