2

IR3621&(PbF)

www.irf.com

ABSOLUTE MAXIMUM RATINGS

-0.5V To 16V

VcH1 and VcH2 Supply Voltage ................................

-0.5V To 25V

PGOOD....................................................................

-0.5V To 16V

Storage Temperature Range ...................................... -55°C To 150°C

Junction Temperature Range ..................................... -40°C To 150°C

ESD Classification ...................................................

JEDEC, JESD22-A114

ratings only and function of the device at these or any other conditions beyond those indicated in the operational sections of the specifica-

tions is not implied. Exposure to “Absolute Maximum Rating” conditions for extended periods may affect device reliability

PACKAGE INFORMATION

Exposed pad on underside is connected to a copper

pad through vias for 4-layer PCB board design.

Parameter Definition

Min

Max

Units

Vcc

Supply Voltage

5.5

14.5

V

VcH1,2

Supply Voltage

10

20

V

Fs

Operating Frequency

200

500

kHz

Tj

Junction Temperature -40

125

°C

Comp2

Rt

Sync

VcH2

HDrv2

Fb2

PGnd2

HDrv1

VcH1

OCSet1

Comp1

SS1 / SD

Fb1

PGood

Gnd

4

3

2

1

25

26

27

28

7

6

5

22

23

24

12

17

11

18

10

19

9

20

8

21

LDrv2

13

LDrv1

PGnd1

15

16

Hiccup

OCSet2

SS2 / SD

32-Lead MLPQ 5mmx5mm (M)

13

Fb1

Comp1

SS1/SD1

OCSet1

VcH1

Comp2

SS2/SD2

OCSet2

VCH2

HDrv2

4

5

6

7

8

9

10

11

12

17

18

19

20

21

28

29

30

31

32

Pad

14

15

16

Hiccup

Sync

22

23

24

Fb2

1

2

3

25

26

27

Rt

28-PIN TSSOP (F)

IR3621F

RECOMMENDED OPERATING CONDITIONS

IR3621M & IR3621MPbF