TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125

REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP

DC/DC CONVERTERS

SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

8

POST OFFICE BOX 655303

DISSIPATION RATING TABLE 1 FREE-AIR TEMPERATURE (see Figure 3)

PACKAGE

TA ≤ 25_C

POWER RATING

DERATING FACTOR

ABOVE TA = 25_C

TA = 70_C

POWER RATING

TA = 85_C

POWER RATING

PWP

700 mW

5.6 mW/

_C

448 mW

364 mW

DISSIPATION RATING TABLE 2 FREE-AIR TEMPERATURE (see Figure 4)

PACKAGE

TC ≤ 62.5_C

POWER RATING

DERATING FACTOR

ABOVE TC = 62.5_C

TC = 70_C

POWER RATING

TC = 85_C

POWER RATING

PWP

25 mW

285.7 mW/

_C

22.9 mW

18.5 mW

Figure 3

800

600

400

0

25

50

75

100

1000

1200

vs

FREE-AIR TEMPERATURE

1400

125

150

200

TA – Free-Air Temperature – °C

PWP Package

R

θJA = 178°C/W

Figure 4

15

10

5

0

25

50

75

100

20

25

vs

CASE TEMPERATURE

30

125

150

Measured with the exposed thermal pad

coupled to an infinite heat sink with a

thermally conductive compound (the thermal

conductivity of the compound is 0.815 W/m

°C)

The R

θJC is 3.5°C/W

PWP package

TC – Case Temperature – °C

† Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute maximum temperature of 150

°C.

It is recommended not to exceed a junction temperature of 125

°C.

recommended operating conditions

MIN

MAX

UNIT

Input voltage, VI

1.8

3.6

V

Operating junction temperature, TJ

125

°C