Datasheet


SLUS489 − OCTOBER 2001
2
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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.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
†w
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
−65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction temperature range, T
J
−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, T
J
§
−40 85 °C
§
t is not recommended that the device operate for extended periods of time under conditions beyond those specified in this table.