Datasheet

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 • DALLAS, TEXAS 75265
DISSIPATION RATING TABLE 1 FREE-AIR TEMPERATURE (see Figure 3)
PACKAGE
T
A
≤ 25 C
POWER RATING
DERATING FACTOR
ABOVE T
A
= 25 C
T
A
= 70 C
POWER RATING
T
A
= 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
T
C
≤ 62.5 C
POWER RATING
DERATING FACTOR
ABOVE T
C
= 62.5 C
T
C
= 70 C
POWER RATING
T
C
= 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
– Dissipation Derating Curve – mW
1000
1200
DISSIPATION DERATING CURVE
†
vs
FREE-AIR TEMPERATURE
1400
125 150
200
T
A
– Free-Air Temperature – °C
P
D
PWP Package
R
θJA
= 178°C/W
Figure 4
15
10
5
0
25 50 75 100
20
25
MAXIMUM CONTINUOUS DISSIPATION
†
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
T
C
– Case Temperature – °C
– Maximum Continuous Dissipation – WP
D
†
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, V
I
1.8 3.6 V
Operating junction temperature, T
J
125 °C