TPS43000

SLUS489 − OCTOBER 2001

2

www.ti.com

description (continued)

The TPS43000 features a selectable two-level current-limit circuit which senses the voltage drop across the

energizing MOSFET. The user can select either pulse-by-pulse current limiting or hiccup mode overcurrent

protection. The TPS43000 also features a low-power (LP) mode (which reduces gate charge losses in the

N-channel MOSFET at high input/output voltages), undervoltage lockout, and soft-start. The TPS43000 is

available in a 16-pin TSSOP (PW) package.

Input voltage

(VIN, VP, VOUT)

−0.3 V to 10 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(BUCK, CCM, CCS, PFM, SYNC/SD)

−0.3 V to VIN + 0.3 V

. . . . . . . . . . . . . . . . . . . . . . .

(SWN)

−0.3 V to 17 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(SWP)

−0.3 V to VIN + 0.3 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−55

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

300

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute- maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to

ground. Currents are positive into, negative out of the specified terminals.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

SYNC/SD

CCS

RT

CCM

BUCK

PFM

COMP

FB

SWN

SWP

VP

PDRV

GND

NDRV

VOUT

VIN

PW PACKAGE

(TOP VIEW)

recommended operating conditions

MIN

MAX

UNIT

Input voltage, VIN, VP

9

Input voltage, VOUT

8

V

Input voltage, BUCK, CCM, CCS, PFM, SYNC/SD, SWP

9

V

Input voltage, SWN

17

Operating junction temperature range, TJ §

−40

85

°C

§ t is not recommended that the device operate for extended periods of time under conditions beyond those specified in this table.