List of figures

Figure 1.

Block diagram .................................................................... 2

Figure 2.

Pin connection (marking view) ......................................................... 3

Figure 3.

Typical application circuit ............................................................. 4

Figure 4.

Typical startup sequence (EN toggled after VIN rise) .......................................... 8

Figure 5.

Typical startup sequence (EN toggled during input voltage rise) .................................. 9

Figure 6.

SATA ignore function simplified diagram................................................... 9

Figure 7.

Startup sequence (SATAIG connected to GND at power-up).................................... 10

Figure 8.

Current limit function graphs.......................................................... 10

Figure 9.

Current monitor simplified circuit ....................................................... 11

Figure 10.

5 V reverse current protection block diagram .............................................. 11

Figure 11.

Quiescent current vs. temperature (ON mode) ............................................. 13

Figure 12.

Quiescent current vs. temperature (OFF mode) ............................................ 13

Figure 13.

12 V eFuse RDS_ON vs. temperature .................................................... 13

Figure 14.

5 V eFuse RDS_ON vs. temperature ..................................................... 13

Figure 15.

12 V eFuse voltage clamp vs. temperature ................................................ 13

Figure 16.

5 V eFuse voltage clamp vs. temperature................................................. 13

Figure 17.

12 V eFuse UVLO vs. temperature ..................................................... 14

Figure 18.

5 V eFuse UVLO vs. temperature ...................................................... 14

Figure 19.

12 V eFuse overload current limit vs. temperature ........................................... 14

Figure 20.

5 V eFuse overload current limit vs. temperature ........................................... 14

Figure 21.

Soft-start time vs. temperature ........................................................ 14

Figure 22.

SAS disable pin threshold vs. temperature ................................................ 14

Figure 23.

SATA ignore pin threshold vs. temperature ............................................... 15

Figure 24.

IMON_SEL pin threshold vs. temperature .................................................. 15

Figure 25.

Current monitor gain vs. temperature.................................................... 15

Figure 26.

Current monitor gain vs. load current ................................................... 15

Figure 27.

Startup via input voltage ............................................................ 15

Figure 28.

Startup via input voltage (hot-plug) 5 V .................................................. 15

Figure 29.

Startup via input voltage (hot-plug) 12 V.................................................. 16

Figure 30.

Startup via input voltage (hot-plug) 5 V & 12 V ............................................. 16

Figure 31.

Startup via EN_N signal............................................................. 16

Figure 32.

Shutdown via EN_N signal ........................................................... 16

Figure 33.

Startup into voltage clamp (5 V eFuse) .................................................. 16

Figure 34.

Startup into voltage clamp (12 V eFuse).................................................. 16

Figure 35.

Voltage clamp during operation (5 V eFuse) ............................................... 17

Figure 36.

Voltage clamp during operation (12 V eFuse) .............................................. 17

Figure 37.

Startup into output short-circuit via EN_N (5 V eFuse) ........................................ 17

Figure 38.

Startup into output short-circuit by EN_N (12 V eFuse) ....................................... 17

Figure 39.

Startup into overload (5 V eFuse) ...................................................... 17

Figure 40.

Startup into overload (12 V eFuse) ..................................................... 17

Figure 41.

Overcurrent protection (5 V eFuse) ..................................................... 18

Figure 42.

Overcurrent protection (12 V eFuse) .................................................... 18

Figure 43.

Power loss protection via UVLO_5 ..................................................... 18

Figure 44.

Current monitor response time to load step ............................................... 18

Figure 45.

Current monitor response time to channel switch via IMON_SEL .................................. 18

Figure 46.

DFN10 (2 x 3 mm) package outline ..................................................... 19

Figure 47.

DFN10 (2 x 3 mm) recommended footprint ................................................ 20

Figure 48.

Carrier tape information ............................................................. 21

Figure 49.

Marking information................................................................ 21

Figure 50.

Reel drawing .................................................................... 22

STEF512SRI

List of figures

DS14138 - Rev 1

page 27/28