LX1676

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 2

Mobile AMD Athlon

™ VRM Controller

I N T E GR A T ED

PRODUCT S

Copyright

© 2000

Revision: 0.4b, 9/14/2004

ABSOLUTE MAXIMUM RATINGS

Supply Input Voltage (VCCL, VCC)................................................-0.3V to 6.0V

Battery Input Voltage (VIN)..............................................................-0.3V to 36V

Current Limit Sense (ILIM1, ILIM3) ................................................-0.3V to 36V

Topside Driver Supply Input Voltage (VC1, VC2, VC3)........-0.3 toVSx + 6.0V

Topside Driver Return Input Voltage (VS1, VS2)................................-5V to 36V

Differential Sense Input Voltage (FB+, FB-)....................................-0.3V to 6.0V

VID0 – VID4, Input Voltage ...............................................................-0.3V to 6V

High Side Driver Peak (<500ns) Current (HO1/2, I-MAX) ............................+1A

Low Side Driver Peak (<500ns) Sink Current (LO1/2, I-MIN)....................+1.5A

Operating Junction Temperature.................................................................. 150°C

Storage Temperature Range...........................................................-65°C to 150°C

Lead Temperature (Soldering 10 seconds) .................................................. 300°C

Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to

Ground. Currents are positive into, negative out of specified terminal

.

x denotes respective pin designator 1, 2, or 3

PACKAGE PIN OUT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

FB-

DFOUT

EO1

EA1-

DACOUT

PWGD

GND

ROSC

ENA

VID4

VID3

PGN3

I-MIN

VCCL

LO2

PGN

LO1

VS1

HO1

VC1

VC3

I-MAX

VIN

VS3

Connect Bottom to

Power GND

(Top View)

1

19

38

20

FB-

DFOUT

EO1

EA1-

DACOUT

PWGD

GND

VIN

ROSC

ENA

VID4

VID3

VID2

VID1

VID0

VS2

H02

VC2

VCC

PGN3

I-MIN

VCCL

LO2

PGN

LO1

VC1

VC3

VS3

ILIM3

ILIM1

LP1

LP2

EA2-

EO2

FB+

VS1

HO1

I-MAX

(Top View)

RECOMM END E D O P ERATING CONDITIONS

LX1676

Parameter

Symbol

Min

Typ

Max

Units

IC Input Supply Voltage

VCC

4.5

5.5

V

Battery Input Voltage

VIN

5.7

25.2

V

Biphase Topside Driver Return Voltage

VS1, VS2

0

25.2

V

Transient Correction Phase Driver Return Voltage

VS3

0

5.5

V