
TPPM0115
SWITCH MODE SYNCHRONOUS BUCK CONTROLLER
SLVS371A MARCH 2001 REVISED JUNE 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Unregulated input voltage, VCC (see Notes 1 and 2)
24 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive output voltage, V(DRVH) and V(DRVL) (see Notes 1 and 3)
12.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power good voltage, V(PWRGD) (see Notes 1 and 2)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Feedback voltage, V(SEN) (see Notes 1 and 2)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phase sense voltage, V(PHASE) (see Note 3)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous power dissipation, PD
0.4 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrostatic discharge susceptibility, V(HBMESD) (see Note 4)
2 kV
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating ambient temperature range, TA
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature (soldering, 10 sec) TLEAD
260
°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.
NOTES:
1. All voltage values are with respect to GND.
2. Absolute negative voltage values on these terminals should not be below 0.5 V.
3. Absolute negative voltage values on these terminals should not be below 1 V.
4. The human body model is a 100-pF capacitor discharged through a 1.5-k
resistor into each terminal.
recommended operating conditions
MIN
NOM
MAX
UNIT
Unregulated input voltage, VCC
11.4
12.6
V
Drive output current, I(DRVH) and I(DRVL)
500
mA
Power good voltage, V(PWRGD)
5
V
Feedback voltage, V(SEN)
1
V
Phase sense voltage, V(PHASE)
0
V
Continuous power dissipation, PD
100
mW
Operating ambient temperature, TA
55
°C