NX2422

2

Rev.2.1

12/01/08

ABSOLUTE MAXIMUM RATINGS

Vcc to PGND & BST to SW voltage .................... -0.3V to 6.5V

BST to PGND Voltage ...................................... -0.3V to 35V

SW to PGND .................................................... -2V to 35V

All other pins .................................................... -0.3V to 6.5V

CAUTION: Stresses above those listed in "ABSOLUTE MAXIMUM RATINGS", may cause permanent damage to

the device. This is a stress only rating and operation of the device at these or any other conditions above those

indicated in the operational sections of this specification is not implied.

PACKAGE INFORMATION

24 LEAD PLASTIC MLPQ

ELECTRICAL SPECIFICATIONS

Unless otherwise specified, these specifications apply over 5Vcc = 5V, PVcc= 5V, V

and T

case temperatures equal to the ambient temperature.

1

2

3

4

5

6

AGND

EN2_B

HDRV1

BST1

5VCC

CS+1

REFIN

CSCOMP

HDRV2

BST2

INREFOUT/POK

FB

19

20

21

22

23

24

13

14

15

16

17

18

7

8

9

10 11 12

PGND(PAD)

JA

CW

o

θ ≈ 30.5/

PARAMETER

SYM

TEST CONDITION

MIN

TYP

MAX

UNITS

Supply Voltage(Vcc)

4.5

5

5.5

V

(Dynamic)

ICC

(Dynamic)

REFIN=5V, EN2_B=GND,

Freq=200Khz per phase

4.4

mA

4.5

5

5.5

V

mA

4.5

REFIN=5V, EN2_B=GND,

Freq=200Khz per phase

((Dynamic))

(Dynamic)

mA

-

6.7